Dr. Ryan S. Dhindsa has been granted the Cure One, Cure Many award by the American Brain Foundation. Photo courtesy BCM

A Baylor College of Medicine scientist will begin exploring the possible link between Alzheimer’s disease and viral infections thanks to a $2 million grant awarded in March.

Dr. Ryan S. Dhindsa is an assistant professor of pathology & immunology at Baylor and a principal investigator at Texas Children’s Duncan Neurological Research Institute (Duncan NRI). He hypothesizes that Alzheimer’s may have some link to previous viral infections contracted by the patient. To study this intriguing possibility, the American Brain Foundation has gifted him the Cure One, Cure Many award in neuroinflammation.

“It is an honor to receive this support from the Cure One, Cure Many Award. Viral infections are emerging as a major, underappreciated driver of Alzheimer's disease, and this award will allow our team to conduct the most comprehensive screen of viral exposures and host genetics in Alzheimer's to date, spanning over a million individuals,” Dhindsa said in a news release. “Our goal is to identify which viruses matter most, why some people are more vulnerable than others, and ultimately move the field closer to new therapeutic strategies for patients.”

Roughly 150 million people worldwide will suffer from Alzheimer’s by 2050, making it the most common cause of dementia in the world. Despite this, scientists are still at a loss as to what exactly causes it.

Dhindsa’s research is part of a new range of theories that certain viral infections may trigger Alzheimer’s. His team will take a two-fold approach. First, they will analyze the medical records of more than a million individuals looking for patterns. Second, they will analyze viral DNA in stem cell-derived brain cells to see how the infections could contribute to neurological decay. The scale of the genomic data gathering is unprecedented and may highlight a link that traditional studies have missed.

Also joining the project are Dr. Caleb Lareau of Memorial Sloan Kettering Cancer Center and Dr. Artem Babaian of the University of Toronto. Should a link be found, it would open the door to using anti-virals to prevent or treat Alzheimer’s.

UH will work with Texas Children’s Hospital to track 3,600 children ages 18 to 24 months to better understand how language skills emerge. Photo courtesy UH

UH lands $11.8M for first-of-its-kind early language development study

speech funding

Researchers at the University of Houston have secured an $11.8 million grant from the National Institutes of Health to conduct a first-of-its-kind study of early language development.

Led by Elena Grigorenko, the Hugh Roy and Lillie Cranz Cullen Distinguished Professor of Psychology, and research professor Jack Fletcher, the study will follow 3,600 children aged 18 to 24 months to uncover how language skills develop at this critical stage and why some children experience delays that can influence later growth.

The NIH funding will also support the development of the new national Clinical Research Center on Developmental Language Disorders at UH, which aims to bring experts from psychology, education, health and measurement sciences to study how children learn language.

“This will be the first national study to estimate how common late talking is using a large, representative sample of Houston toddlers,” Grigorenko said in a news release. “By following these children as they grow, we hope to better understand the developmental pathways that can lead to conditions such as developmental language disorder and autism.”

UH’s team will partner with the pediatric clinic network at Texas Children’s Hospital, where children will be screened for early language development, allowing researchers to identify those who show signs of delayed speech. Next, researchers will follow the cohort through early childhood to examine how language abilities evolve and how early delays may lead to later challenges.

The Clinical Research Center on Developmental Language Disorders will be the 14th national research center established at UH, and will include researchers from multiple UH departments, as well as partners at Baylor College of Medicine and the Texas Center for Learning Disorders.

“This level of investment from the National Institutes of Health reflects the significance of this work to address a complex challenge affecting children, families and communities,” Claudia Neuhauser, vice president for research at UH, said in a news release. “By bringing together experts from multiple disciplines and partnering with major health systems across the region, the project reflects our commitment to advancing discoveries that impact our community.”

From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss in February. Photo courtesy the Ion.

10+ can't-miss Houston business and innovation events in February

where to be

Editor's note: February may be short, but its event calendar isn’t. From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Feb. 2 — Entrepreneurship Roundtable with OPEN

Join founders, builders and innovators as they explore what it takes to create, scale and sustain meaningful ventures. This event, hosted by Open Houston, will be moderated by Faisal Bhutto, president and CEO of Houston-based end-to-end IT and cybersecurity company Alykas.

This event is Monday, Feb. 2, from 11 a.m.-1 p.m. at the Ion. Register here.

Feb. 3 — Tech+Tequila Talk: Tax Equity: Aligning Incentives for Founders, Investors & Philanthropy

Hear from guest speaker Cesar de la Cerda, founder and CIO of EnvisionVest, at the latest installment of Tech and Tequila Talk. The event will focus on using the tax code as a powerful fundraising tool.

This event takes place Tuesday, Feb. 3, from 5-7 p.m. at the Ion. Register here.

Feb. 5 — Ion Block Party Mardi Gras

Let the good times roll while networking with potential collaborators, mentors and investors at the Ion. Food and drink will be available, and the Ion will provide drink tickets for one free drink at Second Draught upon check-in.

This event is Thursday, Feb. 5, from 4-7 p.m. at the Ion. Register here.

Feb. 10 — Mercury Fund Day at the Ion

The Ion and Houston's Mercury Fund will host this special event, previously known as Software Day. The event will feature a panel that dives into how Mercury is pushing the boundaries of what’s possible with agentic AI and blockchain. A select group of early-stage software startups will also participate in office hours before the panel. Afterwards, all attendees can network during happy hour at Second Draught.

This event is Tuesday, Feb. 10, from 3:30-7:30 p.m. Register here.

Feb. 11-12 – In-Space Physical AI Workshop

Rice Nexus is bringing together industry leaders, government agencies and academia to explore the cutting edge of AI in space exploration. Matt Ondler, president of Aegis Aerospace, will present the keynote address. Other industry leaders from NASA Johnson Space Center, Intuitive Machines, Microsoft and Rice University and other organizations will participate. The event will close with the Inaugural Space Galette Reception hosted by the Consulate General of France in Houston and the Rice Space Institute.

This event begins Wednesday, Feb. 11, at the Ion. Register here.

Feb. 12 — State of the City

Houston First Corporation and the Greater Houston Partnership will host Mayor John Whitmire’s State of the City luncheon. Whitmire will share an update on his administration’s progress since taking office and highlight his top priorities that will continue to elevate Houston and its economy.

This event is Thursday, Feb. 12, from 11 a.m.-1:30 p.m. at the Hilton Americas-Houston. Register here.

Feb. 12 — Positioning Houston as the Brain Capital of the World

David Gow, CEO of the Center for Houston's Future, will present "Positioning Houston as the Brain Capital of the World" at the University of Houston Honors College Leadership Forum. Gow will share how Project Metis aims to establish Houston as a global hub for brain health research, innovation and economic development.

This event is Thursday, Feb. 12, from 7:30-9:30 a.m. at The Junior League of Houston. Register here.

Feb. 13 — From Research to Enterprise: Immigration & Innovation

Innov8 Hub will host an in-person seminar as part of its Startup Resources Series, focused on the intersection of immigration law, entrepreneurship and technology commercialization. The session will feature guest speakers Mario Cantu, Shilpa Ghurye and Vikesh Patel of KM&D PLLC, who will share insights for founders and innovators navigating legal pathways while building and scaling technology-driven ventures.

The event is Friday, Feb. 13, from 1-2 p.m. at the Innovation Center at UH Technology Bridge, Building 4. Register here.

Feb. 18-20 — TMC AI Summit

UTHealth Houston and Texas Children’s Hospital are bringing back the TMC AI Summit for its third year. This event is focused on translating advanced AI innovations into practical, real-world solutions for the biomedical and healthcare industries. It will be broken up into three tracks and will feature poster and oral presentations, workshops and tutorials, industry talks and student research showcases.

The event begins Wednesday, Feb. 18, at the Duncan Neurological Research Institute. Register here.

Feb. 26 — Transition on Tap

Greentown Labs’ signature networking event returns in February to foster conversations and connections within Houston's climate and energy transition ecosystem. Entrepreneurs, investors, students, philanthropists and more are invited to attend, meet colleagues, discuss solutions and engage with the growing community.

The event begins Monday, Feb. 26, from 5:30-7:30 p.m. at Greentown Labs. Register here.

Feb. 26 — NASA Tech Talk

Every fourth Thursday of the month, NASA experts, including longtime engineer Montgomery Goforth, present on technology development challenges NASA’s Johnson Space Center and the larger aerospace community are facing, and how they can be leveraged by Houston’s innovation community. Stick around after for drinks and networking at Second Draught.

This event is Thursday, Feb. 26, from 6-7 p.m. at the Ion. Register here.

Health care companies dominated Fortune's America’s Most Innovative Companies report for 2025, with Houston’s top-rated company on the list falling into that sector. Photo via Getty Images

8 Houston companies earn spots among Fortune's most innovative for 2025

top honor

Eight Houston companies have been named to Fortune’s third annual list of America’s Most Innovative Companies, joining another 16 from the state of Texas.

The group of 300 companies nationwide was rated based on production innovation, process innovation, and innovation culture, according to Fortune. In partnership with Statista, the magazine considered IP portfolios, employee, expert and customer opinions; and many other factors.

While many of the top-rated companies fell into the tech sector, Fortune reports that health care companies made up the largest portion of the 2025 list. Sixty-three honorees fell into the health care category, including Houston’s top-rated company, Houston Methodist.

Here’s which Houston companies made the list and where they ranked:

  • No. 35 — Houston Methodist
  • No. 54. — ExxonMobil
  • No. 137 — NRG Energy
  • No. 158 — Hewlett-Packard Enterprise
  • No. 169 — BMC Software
  • No. 175 — Texas Children’s Hospital
  • No. 227 — Sysco
  • No. 268 — Chevron

“This award is a true credit to the culture we have created around innovation and the incredible work of Roberta Schwartz, our Chief Innovation Officer, and her team at the Center for Innovation,” Marc Boom, CEO of Houston Methodist, said in a LinkedIn post. “They have really set the tone for how we can use innovation and technology to continue to deliver the highest quality care for our patients.”

Dallas-Fort Worth claimed the largest number of Texas companies on the list, with 11 headquartered in the metroplex. Houston was home to the second-most with eight hailing from the Bayou City. Austin is home to only four of the companies on the list, however, companies from the Capital City ranked higher on average, with Oracle, Tesla and Dell Technologies claiming the top three spots for the state. Beloved Texas grocer H-E-B was the one company to represent San Antonio.

Here's how the other Texas companies fared:

  • No. 6 — Oracle
  • No. 11 — Tesla
  • No. 14 — Dell Technologies
  • No. 37 — AT&T
  • No. 59 — Texas Instruments
  • No. 89 — Charles Schwab
  • No. 91 — McKesson
  • No. 113 — Jacobs Solutions
  • No. 125 — Baylor, Scott & White Health
  • No. 165 — Frontier Communications
  • No. 201— H-E-B
  • No. 210 — CBRE Group
  • No. 219 — TTEC Holdings
  • No. 223 — GameStop
  • No. 251 — American Airlines Group
  • No. 271 — Caterpillar

California-based tech conglomerate Alphabet Inc. topped the list for the third year in a row, and California companies again represented the majority of companies on the list, according to Fortune. Alphabet, Microsoft, Apple, IBM and Salesforce made up the top five, of which three are headquartered in California.

The 2025 group had a median revenue of $22 billion over the last 12 months, according to Fortune. See the full report here.

Sarah Lee, CEO and co-founder of Relavo, won first place at the 2024 Ignite Health Fire Pitch Competition. Photo via Ignite/LinkedIn

Houston female-focused health tech accelerator names top companies at annual event

you go girls

A Houston organization that accelerates and supports female founders leading innovative health tech startups has concluded its 2024 program with the announcement of this year's top companies.

Ignite Health, an accelerator founded in 2017 by longtime Houston health care professional Ayse McCracken, named its 2024 winners at its annual Fire Pitch Competition in Houston last month. The companies pitched health tech solutions across lung health, renal therapy, breastfeeding tech, and more.

"This year’s competition was a culmination of passion, innovation, and hard work from the top startups in our 2024 Accelerator Program," reads a LinkedIn post from Ignite. "These trailblazing founders earned their spot on the stage by demonstrating exceptional leadership and the potential to revolutionize the healthcare industry with their solutions and devices."

First place winner was Sarah Lee, CEO and co-founder of Relavo, a New York-based company that's making home dialysis more effective, safer, and more affordable. Lee accepted awards from Johnson & Johnson and Wilson Sonsini Goodrich & Rosati.

Therese Canares, CEO and founder of CurieDx, took second place and won its awards from SWPDC - Southwest National Pediatric Device Innovation Consortium and Wilson Sonsini. CurieDx, based in Baltimore, Maryland, is creating remote diagnostic tools using smartphone technology.

In third place is Andrea Ippolito, CEO and founder of SimpliFed, a company focused on democratizing access to baby feeding and breastfeeding services through virtual care that's covered by insurance. The startup won awards from Texas Children's Hospital and Wilson Sonsini Goodrich & Rosati.

Three other finalists won other awards, including:

  • Kadambari Beelwar, CEO and co-founder, Henderson, Nevada-based Truss Health, which created an AI-powered sensor fusion platform that's designed to detect early signs of infection, won an award presented by Memorial Hermann Health System and Golden Seeds
  • Mimi Gendreau Kigawa, CEO and co-founder of New York-based Zeph Technologies, an AI-lung care company with technology for clinicians to deliver pulmonary care to patients with chronic respiratory disease, won an award presented by CU Innovations and Houston Methodist
  • Ashley Yesayan, CEO and co-founder, New York-based OneVillage, a software platform meant to support patients and family members through trying health events, won an award presented by CU Innovations

The companies were evaluated by the 2024 judges, which included: Allison Rhines, head of JLABS Houston; Andrew Truscott, global health technology lead at Accenture; Angela Shippy, senior physician executive at Amazon Web Services; Kimberly Muller, executive director of CU Innovations at University of Colorado Anschutz Medical Campus; Myra Davis, chief innovation and information officer at Texas Children's Hospital; and Winjie Tang Miao, senior executive vice president and COO of Texas Health Resources.

Texas Children's Hospital has been busy. Photo via tmc.edu

Houston hospital system scores $4.8M gift, opens new Austin clinic, and more

news roundup

Texas Children’s Hospital has lots of exciting news this month. Chief among its big announcements is a $4.8 million gift that will help to fund the hospital’s new behavioral health Intensive Outpatient Program (IOP) in The Woodlands.

The donation comes from Ovintiv, a natural gas exploration and production company headquartered in Denver, Colorado.

The pledge makes Ovintiv the first company sponsor to join the Council of Hope, Texas Children’s new corporate giving society. The council’s fundraising priorities include supporting Texas Children’s behavioral health initiatives. Texas Children’s formed a Behavioral Health Task Force last year in order to expand and upgrade services for patients who need specialized help, hopefully preventing the necessity of in-patient care.

The IOP is expected to open early next year. It will treat patients for four or five hours a day, using individual, group and family therapy, art and music therapy programs, and yoga and recreational therapy to improve outcomes in behavioral health.

“This IOP is desperately needed in the Woodlands, and we are committed to creating it because we believe that the behavioral and developmental health of children, adolescents and teens is just as important as their physical well-being. Ovintiv’s transformational gift will make a life-changing difference for so many patients and their families,” says Dr. Kirti Saxena, chief of psychiatry at Texas Children’s Hospital and associate professor of psychiatry and behavioral sciences at Baylor College of Medicine, in a press release.

The Woodlands, however, isn’t the only city seeing the debut of a new facility from Texas Children’s. Last week, Texas Children’s Pavilion for Women announced the grand opening of its obstetrics and gynecology clinic in North Austin. The location welcomes women for fertility management, prenatal and preventative care, and a full spectrum of gynecological services.

That’s just the beginning for Texas Children’s and its reach in central Texas. In addition to the new OB/GYN clinic, Texas Children’s Hospital North Austin will open its doors in early February. It will provide care for women and children, especially in the areas of maternal-fetal medicine, and fetal intervention and neonatology.

Additionally, the Houston hospital has been named a Center of Excellence in antimicrobial stewardship (AMS) by bioMerieux, a world leader in in vitro diagnostics. Texas Children’s is one of three in the United States to net the honor, and the only one that specializes in pediatrics.

It’s no secret that antimicrobial resistance (AMR) is a bête noire of hospitals around the world. Common infectious diseases are becoming increasingly difficult to treat. By ensuring that patients get the right drug, at the right dose, at the right time, antimicrobial stewardship is extremely important to fighting resistance and to continuing antibiotic efficacy for future generations.

Texas Children’s and bioMérieux will collaborate to further activate antimicrobial resistance measures that will improve patient care. They’ll share expertise to develop and scale innovative best practices based on the application of diagnostic technology. And through all of its innovations, Texas Children’s will continue to be a global leader in pediatric care.

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Houston-based Fervo Energy bumps up IPO target to $1.82 billion

IPO update

Houston-based geothermal power company Fervo Energy is now eyeing an IPO that would raise $1.75 billion to $1.82 billion, up from the previous target of $1.33 billion.

In paperwork filed Monday, May 11 with the U.S. Securities and Exchange Commission, Fervo says it plans to sell 70 million shares of Class A common stock at $25 to $26 per share.

In addition, Fervo expects to grant underwriters 30-day options to buy up to 8.33 million additional shares of Class A common stock. This could raise nearly $200 million.

When it announced the IPO on May 4, Fervo aimed to sell 55.56 million shares at $21 to $24 per share, which would have raised $1.17 billion to $1.33 billion. The initial valuation target was $6.5 billion.

A date for the IPO hasn’t been scheduled. Fervo’s stock will be listed on Nasdaq under the ticker symbol FRVO.

Fervo, founded in 2017, has attracted about $1.5 billion in funding from investors such as Bill Gates-founded Breakthrough Energy Ventures, Google, Mitsubishi Heavy Industries, Devon Energy (which is moving its headquarters to Houston), Tesla co-founder JB Straubel, CalSTRS, Liberty Mutual Investments, AllianceBernstein, JPMorgan, Bank of America and Sumitomo Mitsui Trust Bank.

Fervo’s marquee project is Cape Station in Beaver County, Utah, the world’s largest EGS (enhanced geothermal system) project. The first phase will deliver 100 megawatts of baseload clean power, with the second phase adding another 400 megawatts. The site can accommodate 2 gigawatts of geothermal energy. Fervo holds more than 595,000 leased acres for potential expansion.

Cape Station has secured power purchase agreements for the entire 500-megawatt capacity. Customers include Houston-based Shell Energy North America and Southern California Edison.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

Texas university's new flight academy opens at Houston Spaceport

cleared for takeoff

The vehicles may not have “student driver” stickers on them, but Texas Southern University has moved a dozen planes into its new training facility at the Houston Spaceport, opening the way for student flyers to use the facility.

TSU previously reached a deal with Houston Airports and the City of Houston in 2023 to house its prospective Flight Academy at Ellington Field. At the time, TSU had a small fleet of nine planes for student use, but a $5.5 million investment from the city greatly expanded the space available.

The Flight Academy includes a 20,000-square-foot hangar that serves as a TSU satellite campus. The school now has a fleet of 12 Cirrus SR20 aircraft that were acquired last year through state and alumni funding. An additional 4,500 square feet is used as classroom and office space. An 8,000-gallon fuel tank will support flight training operations.

TSU first launched its Aviation Science Management program in 1986 and added a professional pilot program in 2016. The school is now part of the United Airlines pipeline program and has also forged relationships with Delta and Southwest.

“I want to commend Texas Southern University and Houston Airports for their leadership and partnership in advancing aviation education right here in our city,” Houston City Councilwoman Dr. Carolyn Evans-Shabazz in a press release.

“It connects our students to high-paying, high-demand careers in aviation and aerospace. This is how we grow a city in the right way—by investing in workforce development, aligning education with industry and making sure our residents are prepared to lead in the industries of tomorrow. Houston is already a global leader in aerospace and projects like this strengthen that position even further, especially here at Ellington, where innovation and opportunity continue to take flight.”

The City of Houston signed an agreement to continue funding the academy for five years.

Amazon launches ultrafast, 30-minute delivery service across Houston

Amazon Now

More than 20 years after it redefined fast shipping, Amazon is preparing to raise the bar on consumer expectations again by offering to fulfill customers' most urgent product needs in Houston and other parts of the world in a half-hour or less for an extra fee.

The company, which revolutionized online shopping in 2005 with two-day deliveries for Prime members, is rapidly opening small order-processing hubs in dozens of U.S. and foreign cities to cater to shoppers who can't or don't want to wait for cough medicine to relieve flu symptoms or tomatoes for tonight's dinner salad.

The ultrafast service, called Amazon Now, first launched in India last June. Amazon says 30-minute deliveries now are also available in urban areas of the United States, Brazil, Mexico, Japan, the United Arab Emirates, the United Kingdom.

The mini-warehouses devoted to Amazon Now are about the size of a CVS drugstore. They stock about 3,500 products for expedited delivery, including beer, diapers, pet food, meat, nonprescription medications, playing cards and cellphone charging cables.

“We know that customers love speed and always have,” Beryl Tomay, Amazon’s head of transportation, told The Associated Press on Monday. “What we see customers doing, when we offer faster speeds, are they purchase more from Amazon. And Amazon becomes more top of mind for that or other types of items as well.”

In the U.S., the company first tested Amazon Now in Seattle, the home of its headquarters, and in Philadelphia. Most residents of the Dallas-Fort Worth area and Atlanta now have access as well. The service is also live in Dallas-Fort Worth, Denver, Minneapolis, Phoenix, Oklahoma City, Orlando, and dozens of other cities, Amazon said, with New York City and others expected by year-end.

The service charges for Amazon Now start at $3.99 for Prime members, who pay an annual fee of $139, and $13.99 for non-members. A $1.99 small basket fee applies to orders under $15, Amazon said.

The company's bet on a need for speed also comes as some consumers are rebelling against rushed deliveries as they weigh the potential impact on the environment and the workers tasked with preparing orders at a rapid rate.

Amazon’s approach
A relentless focus on speed helped Amazon build a logistics and e-commerce empire. After it made two days the new delivery time normal, Amazon moved into one-day and same-day deliveries for its Prime members. This spring, the company began making 90,000 products available in one hour or three hours at an extra cost.

The scaled down and sped up microhubs that are designed to handle 30-minute orders represent another step in Amazon's pursuit.

Only a handful of people prepare orders from aisles of shelves in the 5,000- to 10,000-square-foot facilities, unlike the sprawling fulfillment centers storing millions of items where Amazon employs a mix of human workers and robotics to pick and pack orders.

Amazon tailors the product inventory to each location and uses artificial intelligence and other technology to analyze what customers buy, as well as when and how often. The most popular U.S. purchases so far include soap, toothpaste, mouthwash, toilet plungers, bananas, limes and wireless earbuds, Amazon said.

The competition
Amazon’s attempt to up the instant gratification ante provides direct competition to on-demand food delivery platforms like Instacart, Uber Eats, DoorDash and Grubhub, which don't have the scale of the e-commerce titan, according to independent retail analyst Bruce Winder.

“What Amazon brings is their prowess in supply chain,” Winder said.

These smaller companies said they don't see Amazon as a threat, though, citing the hundreds of thousands of items they are able to deliver to users' doorsteps by partnering with various merchants and restaurants.

“DoorDash has a mission to empower grocers and retailers and augment their existing footprint, not to replace them,” DoorDash spokesperson Ali Musa said in an emailed statement. “We win only when they win, which is how we can offer over half a million grocery and retail items in under an hour across the country.”

Amazon also is in a race with Walmart to become the retailer that reliably gets orders to online shoppers in under an hour.

For an additional $10 on top of standard delivery charges, shoppers can place Walmart Express Delivery orders from among more than 100,000 products that are guaranteed to arrive in an hour. Many customers, however, are receiving the items under 30 minutes, Walmart CEO John Furner told analysts in February.

Domino's cautionary tale
Companies have promised deliveries in 30 minutes or less before, but the landscape also is littered with failed attempts to break the speed barrier.

The COVID-19 pandemic produced a flurry of companies that promised 10- to 15-minute grocery deliveries from microwarehouses in dense neighborhoods, according to Sucharita Kodali, an analyst at market research firm Forrester Research.

But soaring operating costs, low customer loyalty and the drying up of investor money ultimately caused most to fail before the pandemic was over, analysts said.

Domino’s in 1984 pushed a guarantee that customers would receive their pizzas for free if they weren't delivered in under a half-hour. The company amended the “30 minutes or it’s free” policy after two years, providing only a $3 discount for late deliveries.

The promotion helped Domino’s win market share, but it ended up tarnishing the company's reputation. It dropped the guarantee in December 1993 after a string of crashes and lawsuits involving drivers racing to meet the deadline.

Brad Jashinsky, a retail analyst at information technology research and consulting firm Gartner, said he thinks Amazon should take the pizza chain's experience as a cautionary tale.

“You get in trouble when you start overpromising something like that,” he said.

Amazon won't be making any time guarantees and instead plans to keep customers who chose the 30-minute delivery option updated on the progress of their orders, Tomay said.

“There's no rushing either in our building workers or the gig workers,” she said.

Taking it slow
Kodali thinks Amazon will need a lot of people placing orders around the same time from the same or adjacent apartment buildings for the 30-minute service to be cost-effective.

Consumers may appreciate rapid receipt of products like toilet paper and batteries, but retailers and logistics experts said they also see some online shoppers, especially members of Generation Z, choosing no-rush shipping for products they don't need in a hurry.

Amazon for several years has invited customers to skip one- or two-day delivery and to receive their orders on the same day in as few parcels as possible. Consolidating orders into fewer packages by electing to have them delivered at the same time cuts down on boxes, shipping envelopes and fuel use, analysts said.

“The millennials who came to age in an era that was on fast delivery came to expect it de facto, whereas ... Gen Z is more accepting of a slower speed than previous generations before them,” said Darby Meegan, a general manager at Flexport, a supply chain and logistics company that fulfills orders for thousands of online merchants.

Still, Amazon executives have cited positive early results for Amazon Now in India, where they said Prime members tripled their requests for 30-minute deliveries once they started using the service.

Amazon Now also is attracting more repeat American customers, Tomay said.

“It’s in early days and time will tell,” she said. “I think that it will be interesting to see how it evolves.”