This week's roundup of Houston innovators includes Melanie Johnson of Collaborative for Children, Aditya Mohite of Rice University, Lani Doyle of Cart.com. Photos courtesy

Editor's note: Every week, I introduce you to a handful of Houston innovators to know recently making headlines with news of innovative technology, investment activity, and more. This week's batch includes a nonprofit leader introducing new technologies, a solar tech-focused Rice University professor, and a new hire for a Houston fast-growing startup.

Melanie Johnson, president and CEO of Collaborative for Children

Collaborative for Children is focused on utilizing social-emotional learning robots and coding tech toys. Photo courtesy

Generally, when children are under the age of five, educators believe that they are best suited for and interested in learning, because those are the years in which there is the strongest opportunity to build a broad and solid foundation for lifelong literacy and well-being.

That sentiment is deeply held by Collaborative for Children, the Houston-based nonprofit organization with the mission to meaningfully improve the quality of early childhood education and provide access to cutting-edge technology through its Centers of Excellence to all children, especially those in low-income and marginalized communities.

“The reason the organization was started about 40 years ago is that a group of philanthropists in the greater Houston area suggested that this was so important because 90 percent of the brain develops or grows in the time frame between ages zero to five years of age,” Melanie Johnson, president and CEO of Collaborative for Children, tells InnovationMap. Read more.

Aditya Mohite, director of Rice Engineering Initiative for Energy Transition and Sustainability

The new process developed by Rice University researchers makes solar cells that are about 10 times more durable than traditional methods. Photo courtesy

Presented on the cover of a June issue of Science, a study from Rice University engineer Aditya Mohite's lab uncovered a method to synthesize a high-efficiency perovskite solar cell, known as formamidinium lead iodide (FAPbI3), converting them into ultrastable high-quality photovoltaic films, according to a statement from Rice. Photovoltaic films convert sunlight into electricity.

The new process makes solar cells that are about 10 times more durable than traditional methods.

“Right now, we think that this is state of the art in terms of stability,” Mohite said in a statement. “Perovskite solar cells have the potential to revolutionize energy production, but achieving long-duration stability has been a significant challenge.” Read more.

Lani Doyle, chief people officer at Cart.com

Fast-growing Cart.com has named its new chief people officer. Photo courtesy of Cart.com

Houston-based e-commerce software and services company Cart.com has hired a former Shopify executive as its chief people officer.

Before joining Cart.com, Lani Doyle was chief HR officer at Strategic Solutions Group, a provider of health care software. Previously, she was vice president of HR and people operations at 6 River Systems, a provider of software and robotics for warehouses. Prior to that, Doyle was head of talent development and operations at Shopify, an e-commerce platform for businesses that posted revenue of $7.1 billion in 2023.

“Cart.com is one of the fastest-growing companies in commerce today, and I’m excited to partner with our teams to help drive growth and scalability,” Doyle says in a news release. “I am eager to contribute to shaping our culture and developing programming that supports and elevates high-performing teams, ensuring we achieve our ambitious goals.” Read more.

Fast-growing Cart.com has named its new chief people officer. Photo courtesy of Cart.com

Former Shopify exec joins Houston scale-up e-commerce software company

joining the team

Houston-based e-commerce software and services company Cart.com has hired a former Shopify executive as its chief people officer.

Before joining Cart.com, Lani Doyle was chief HR officer at Strategic Solutions Group, a provider of health care software. Previously, she was vice president of HR and people operations at 6 River Systems, a provider of software and robotics for warehouses. Prior to that, Doyle was head of talent development and operations at Shopify, an e-commerce platform for businesses that posted revenue of $7.1 billion in 2023.

Cart.com is one of the fastest-growing companies in commerce today, and I’m excited to partner with our teams to help drive growth and scalability,” Doyle says in a news release. “I am eager to contribute to shaping our culture and developing programming that supports and elevates high-performing teams, ensuring we achieve our ambitious goals.”

Omair Tariq, founder and CEO of Cart.com, describes Doyle as a “strategic leader” who will help develop the startup’s continually growing team. The company, founded in 2020 in Houston, employs more than 1,600 people.

“Her deep expertise in HR strategy and talent development will be instrumental as we accelerate our growth trajectory and foster a dynamic workplace culture,” says Frank Parker, chief operating officer of Cart.com.

In February, Cart.com made another high-level executive move by promoting Joe Barth from senior vice president of fulfillment to chief logistics officer.

Cart.com has more than 6,000 customers. The company handles more than 75 million orders per year from 14 fulfillment centers in the U.S.

Earlier this year, Tariq joined the Houston Innovators Podcast to share a bit about his company's growth and its relocation from Austin back to Houston.

"I think Austin served its purpose. It certainly allowed us to be in the limelight in all the right ways, and I'm grateful for it," Tariq says on the show. "But once we got to a point, once we closed our series C round and became a unicorn ... I think we're now at a scale where the infrastructure that Houston provides is probably something that will be more attractive and useful for us in the long term."

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Houston e-commerce unicorn reaches $1.6B valuation with $50M fundraising round

fresh funding

Houston-based Cart.com, a provider of fulfillment and logistics services for B2C and B2B brands, has raised $50 million in venture capital, pushing its valuation to $1.6 billion. Since it was founded in 2020, Cart.com has raised $475 million.

Cart.com earned “unicorn” status in 2023 after securing a $60 million Series C round of funding. In the startup universe, “unicorn” refers to a private company that’s valued at $1 billion or more. Last year, Cart.com nailed down $130 million in debt funding, lifting its valuation to $1.2 billion.

Technically, Cart.com no longer qualifies as a startup. Rather, it’s now in “scaleup” territory. This term refers to a startup that has notched substantial growth and has maintained a stable workforce, among other positive achievements. Notable brands that have graduated from startup to scaleup include Airbnb, Peloton and Uber.

The $50 million round includes money from funds and accounts managed by BlackRock and Neuberger Berman, and new investors such as eGateway Capital, along with several unidentified venture capital firms, investors and family offices.

The company said it will use the fresh capital to fuel its global expansion through investments in infrastructure, technology, and M&A.

“Cart.com is continuing our strong growth trajectory across all operating metrics, and we intend to utilize this additional capital to accelerate the expansion of our platform and bring our customers new capabilities to enable their growth,” Omair Tariq, founder and CEO of Cart.com, said in a news release. Tariq added that his company is “well on our way to building the largest and most comprehensive platform in our space.”

Over the past 12 months, Cart.com completed its acquisition of OceanX, the fulfillment operation of direct marketing company Guthy-Renker, and Amify, an Amazon marketplace optimization and advertising platform. Bill Guthy, founder of Guthy-Renker, now sits on Cart.com’s board of directors

Texas luxury bus service adds route connecting The Woodlands and Dallas

Travel Time

Houston-area business and leisure travelers have a convenient new route to check out thanks to Vonlane. The Texas-based luxury motor coach service is adding a new daily service between The Woodlands and Dallas starting June 13.

Vonlane already offers service between Dallas and downtown Houston, at the Hyatt Regency at 1200 Louisiana St., eight times per day starting at 6 am. The ride takes 3 hours and 45 minutes.

According to Vonlane founder and CEO Alex Danza, The Woodlands has been a much-requested route.

“The Woodlands area has been our most requested geographic addition for several years, so we’re thrilled to announce this expansion, our 10th destination on our 11th anniversary,” Danza says. “Bringing our elevated bus service to suburban areas is a strategic priority as we seek to relieve the hassles of driving and air travel for our passengers and better meet them where they live, work, and play.”

The new service brings a convenient nonstop route to and from the northern fringe of Houston — The Woodlands, Spring, Cypress, Conroe, Montgomery County, and northern Harris County.

Beginning June 13, The Woodlands-Dallas route will offer the following departures:

  • Monday, Thursday, and Friday: 6:15 am, 10:15 am, 2:15 pm, and 6:15 pm – departing both The Woodlands and Dallas
  • Tuesday, Wednesday, and Sunday: 10:15 am and 2:15 pm – departing both The Woodlands and Dallas
  • Saturday: 9 am: departing The Woodlands
  • Saturday 1 pm: departing Dallas

This ride will take 3 hours and 15 minutes.

The new drop-off point for The Woodlands service will be at Woodlands Waterway Marriott Hotel & Convention Center, 1601 Lake Robbins Dr.. According to Danza, The Woodlands Waterway Marriott offers easy access to I-45, ample parking, and high-quality accommodations.

Riders will depart in Dallas at the established stop at Doubletree Love Field, 3300 W. Mockingbird Ln. The new route offers proximity to major employers in the area such as Alight Solutions, Baker Hughes, Chevron Phillips, Entergy, ExxonMobil, Hewlett-Packard, Houston Methodist, Huntsman Corporation, Lone Star College, McKesson, Memorial Hermann, Occidental Petroleum, St. Luke’s Health, and Texas Children’s.

Visit The Woodlands president Nick Wolda says in a statement that The Woodlands is a popular destination for Dallas residents.

“Visit The Woodlands is excited to welcome Vonlane to The Woodlands Waterway Marriott and Conference Center. This first-class amenity is a fantastic addition to our vibrant community, perfectly designed to elevate the travel experience,” Wolda says. “The Woodlands is the go-to destination for trips from the DFW area—whether you're a corporate conventioneer, a Pavilion concertgoer, a college student coming home, or a weekend shopping trip with friends. With this new service, getting to and from The Woodlands has never been easier or more enjoyable!"

Vonlane buses have 22 first-class leather seats, ample workspace, complimentary Wi-Fi, and an onboard attendant offering premium cabin service with snacks, meals, and beverages included.

Fares are a flat rate of $125 for one-way trips with advance purchase. No taxes, baggage fees, or change fees apply. Rates increase with less than seven days’ notice and within 24 hours before departure.

Tickets can be booked at www.vonlane.com.

Vonlane was founded in Texas in 2014 and offers more than 475 weekly departures across 10 destinations.

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A version of this story originally appeared on CultureMap.com.

Houston aerospace co. soars with first U.S. test flight of hypersonic engine

taking off

Houston-based Venus Aerospace successfully completed the first U.S. flight test of its proprietary engine at a demonstration at Spaceport America in New Mexico.

Venus’ next-generation rotating detonation rocket engine (RDRE) is supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA and aims to enable vehicles to travel four to six times the speed of sound from a conventional runway. The recent flight test was the first of an American-developed engine of its kind.

"With this flight test, Venus Aerospace is transforming a decades-old engineering challenge into an operational reality,” Thomas d'Halluin, managing partner at Airbus Ventures, an investor in Venus, said in a news release. “Getting a rotating detonation engine integrated, launch-ready, and validated under real conditions is no small feat. Venus has shown an extraordinary ability to translate deep technical insight into hardware progress, and we're proud to support their bold approach in their attempt to unlock the hypersonic economy and forge the future of propulsion."

Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel. It is designed to be affordable and scalable for defense and commercial systems.

The RDRE is also engineered to work with the company's air-breathing detonation ramjet, the VDR2, which helps enable aircraft to take off from a runway and transition to speeds exceeding Mach 6. Venus plans for full-scale propulsion testing and vehicle integration of this system. Venus’ ultimate goal is to develop a Mach 4 reusable passenger aircraft, known as the Stargazer M4.

"This milestone proves our engine works outside the lab, under real flight conditions," Andrew Duggleby, Venus co-founder and chief technology officer, said in the release. "Rotating detonation has been a long-sought gain in performance. Venus' RDRE solved the last but critical steps to harness the theoretical benefits of pressure gain combustion. We've built an engine that not only runs, but runs reliably and efficiently—and that's what makes it scalable. This is the foundation we need that, combined with a ramjet, completes the system from take-off to sustained hypersonic flight."

The hypersonic market is projected to surpass $12 billion by 2030, according to Venus.

"This is the moment we've been working toward for five years," Sassie Duggleby, CEO and co-founder of Venus Aerospace, added in the release. "We've proven that this technology works—not just in simulations or the lab, but in the air. With this milestone, we're one step closer to making high-speed flight accessible, affordable, and sustainable."