Houston venture capitalist says it's time for more women in VC

HOUSTON INNOVATORS PODCAST EPISODE 73

Samantha Lewis, principal at Mercury Fund, joins this week's episode of the Houston Innovators Podcast. Photo courtesy of Mercury Fund

In all the turmoil of 2020, Samantha Lewis had at least one silver lining. The former director of Goose Capital transitioned into her new position as principal at Mercury Fund.

However fortunate she feels to have her new position, she shares on the Houston Innovators Podcast this week that there's not nearly enough of women like her in venture capital.

"The bottom line is there has to be more women with check-writing abilities," Lewis says on the show. "And when there is more women with check-writing abilities, more women will get funded."

Joining the podcast at the start of Women's History Month, Lewis says that the pandemic disproportionately affected women's careers across the board — but when it comes to VC, the solution is growing the female representation at firms.

"It is up to the people in VC hiring or the institutional investors who are giving money to funds to make sure there's a woman on the investment team," she says — adding that just one isn't enough.

In her role at Mercury, Lewis is helping build up the fund's processes — something she specialized in at Goose. She's also focused on building up the portfolio around a specific theme.

"One of the things specifically that Mercury brought me over to focus on from an investment perspective is something we're calling our 'power theme,'" Lewis says. "Think about it as giving people the power to make decisions that are authentic to their values around sustainability and impact."

There have been significant changes in consumer values driven by millennials, and businesses are prioritizing sustainability and transparency in order to keep up. Lewis discusses how Houston-based Topl, which is one of Mercury's portfolio companies, has a major role to play in this space.

Another key area of interest for Lewis is fintech.

"The other piece of the theme is thinking about the democratization of financial services," Lewis says. "Legacy financial institutions have ignored large groups of our population here in America and broader for a very long time. Technology is actually breaking down a lot of those barriers, so there are all these groups that have traditionally been ignored that now technology can reach to help them build wealth."

Lewis discusses more about how Mercury Fund is at an inflection point and how the Houston innovation ecosystem is developing with intention on the episode. Listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.



Kim Raath, CEO of Topl, and Leslie Goldman, general partner at The Artemis Fund, identified three challenges that female entrepreneurs face while going through the fundraising process. Photos courtesy

2 female Houston entrepreneurs discuss challenges women face during fundraising

women in VC

It's estimated that women make up only around 10 percent of decision makers in venture capital firms in the United States, and women-led companies only receive of a fraction of venture capital invested. And, stats aside, female entrepreneurs continue to face obstacles in the process that their male counterparts don't always share.

Kim Raath — co-founder and CEO of Topl, a Houston-based blockchain startup — and Leslie Goldman — general partner and co-founder of The Artemis Fund — discussed some of these obstacles at a virtual fireside chat for Dallas Startup Week. Here are the three challenges women face during fundraising, as Raath and Goldman discussed.

Balancing being realist with optimism

It's almost a chiche at this point — yet it still holds a great deal of truth — that women tend to be more honest than men when it comes to applying for jobs, for instance. Goldman says she's seen it plenty of times, especially when she was involved in corporate recruiting at one point in her career. Raath and Goldman agreed, women want to check off all the boxes on a requirements list.

"Men would apply if they could check just one box," Goldman says. "Women tend to be more realistic."

This trait, while noble, can be a disadvantage as it translates to the fundraising process.

Navigating unconscious bias

Raath says she's no stranger to discrimination for being a woman. In the chat, she tells a story of when she was a girl and the woman's track event she was supposed to run was canceled. She had her heart set on getting to nationals, so her father lobbied for her to get a chance to run in the boy's race. Eventually, they let her and she came in second place.

She continued to observe moments like this throughout her schooling, especially when she started studying male-dominated studies like economics and statistics — Raath now has a master's and a Ph.D from Rice University. When recently raising money for Topl's latest round, her observational and statistical mind picked up on something. Raath explains that there are two types of questions a VC might ask you — preventative vs. promotional. An example she gives for each is:

  • Preventative: "How many daily users do you have?"
  • Promotional: "How do you look to acquire users?"

"About three months in, I started realizing that I'm constantly getting these preventative questions. So, I did a little research," Raath says, explaining that she found that women are more likely to get these preventative questions. "Now, every preventative question I got, I started answering with a promotional answer."

It's the same unconscious bias as how a young male entrepreneur might be considered, "young and promising," while a woman with the same resume would be considered, "young and inexperienced."

Creating a supportive network

Raath and Goldman discussed the importance of women surrounding themselves with supportive networks made up of both women and men. On one hand, it's key to have fellow female entrepreneurs or investors who have been in your shoes before or whom you can give advice to — Raath says she created "woke woman wine nights" with her interns this summer.

On the other hand, having men in your network who can act as advocates — like Raath's father was as well as her male co-founders whom she says are great supporters — is crucial too.

"I have been surrounded by some amazing male counterparts," Raath says. "That's the other side of this is finding male champions."

Sandy Guitar — along with other Houston female venture capitalists — are gathering virtually to promote networking and friendship amid the pandemic. Photo courtesy of Sandy Guitar

Houstonian fosters collaboration and mentorship for women in venture capital

HOUSTON INNOVATORS PODCAST EPISODE 46

When Sandy Guitar saw that Austin had a group of women in venture capital group that promoted collaboration and networking, she knew Houston had to have one too.

Guitar, who is the managing director of the HX Venture Fund, connected with the Austin group, picked their brains and asked for advice on starting a local iteration, and recruited a few fellow female VC experts in town — and the rest is history.

"There's a part of us as women that understands necessarily that work and life combine," Guitar says on this week's episode of the Houston Innovators Podcast. "Our lives as women don't allow us to segment our lives. The truth is those parts of our lives come together. The more we can do that, the more we can build networks that help us achieve everything we want both professionally and personally."

Now, over a year later, the Women Investing in VC in Houston group has grown to over 30 members — so much that their virtual visits are broken into smaller groups. The group boasts diversity and has representatives across types of funds. To join, women must simply live in Houston and be a venture capital investor. Other than that, the group is unstructured and casual, which fosters an environment where members are allowed to ask a stupid question or speak up on something personal, as Guitar says.

"When you have no dues and very little formality, no structure, no pressure to attend — it's in that setting that you actually build trust. Organically, the friendships come together," she says. "That's what it's really about."

While the group had pre-pandemic beginnings, the model of mentorship and networking is more relevant now than ever. Men and women alike, Guitar says, are not able to silo work and life as we work from home and practice social distancing.

"COVID has made us vulnerable in an entirely new set of ways," she says. "We use our support groups — whatever they are — to help us."

Guitar discusses the group and how what the venture capital industry needs to do to evolve into a more welcoming space for women in the episode of the podcast. You can listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


The Women Investing in VC in Houston group has pivoted to virtual events since the start of COVID-19. Photo courtesy of Sandy Guitar

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TMCi names 11 global startups to latest HealthTech Accelerator cohort

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Texas Medical Center Innovation has named 11 medtech startups from around the world to its latest HealthTech Accelerator cohort.

Members of the accelerator's 19th cohort will participate in the six-month program, which kicked off this month. They range from startups developing on-the-go pelvic floor monitoring to 3D-printed craniofacial and orthopedic implants. Each previously participated in TMCi's bootcamp before being selected to join the accelerator. Through the HealthTech Accelerator, founders will work closely with TMC specialists, researchers, top-tier hospital experts and seasoned advisors to help grow their companies and hone their clinical trials, intellectual property, fundraising and more.

“This cohort of startups is tackling some of today’s most pressing clinical challenges, from surgery and respiratory care to diagnostics and women’s health," Tom Luby, chief innovation officer at Texas Medical Center, said in a news release. "At TMC, we bring together the minds behind innovation—entrepreneurs, technology leaders, and strategic partners—to help emerging companies validate, scale, and deliver solutions that make a real difference for patients here and around the world. We look forward to seeing their progress and global impact through the HealthTech Accelerator and the support of our broader ecosystem.”

The 2025 HealthTech Accelerator cohort includes:

  • Houston-based Respiree, which has created an all-in-one cardiopulmonary platform with wearable sensors for respiratory monitoring that uses AI to track breathing patterns and detect early signs of distress
  • College Station-based SageSpectra, which designs an innovative patch system for real-time, remote monitoring of temperature and StO2 for assessing vascular occlusion, infection, and other surgical flap complications
  • Austin-based Dynamic Light, which has developed a non-invasive imaging technology that enables surgeons to visualize blood flow in real-time without the need for traditional dyes
  • Bangkok, Thailand-based OsseoLabs, which develops AI-assisted, 3D-printed patient-specific implants for craniofacial and orthopedic surgeries
  • Sydney, Australia-based Roam Technologies, which has developed a portable oxygen therapy system (JUNO) that provides real-time oxygen delivery optimization for patients with chronic conditions
  • OptiLung, which develops 3D-printed extracorporeal blood oxygenation devices designed to optimize blood flow and reduce complications
  • Bengaluru, India-based Dozee, which has created a smart remote patient monitor platform that uses under-the-mattress bed sensors to capture vital signs through continuous monitoring
  • Montclair, New Jersey-based Endomedix, which has developed a biosurgical fast-acting absorbable hemostat designed to eliminate the risk of paralysis and reoperation due to device swelling
  • Williston, Vermont-based Xander Medical, which has designed a biomechanical innovation that addresses the complications and cost burdens associated with the current methods of removing stripped and broken surgical screws
  • Salt Lake City, Utah-based Freyya, which has developed an on-the-go pelvic floor monitoring and feedback device for people with pelvic floor dysfunction
  • The Netherlands-based Scinvivo, which has developed optical imaging catheters for bladder cancer diagnostics

2025 Houston Innovation Awards winners revealed at annual event

The winners are...

After weeks of anticipation, the 2025 Houston Innovation Awards winners have been revealed. Finalists, judges, and VIPs from Houston's vibrant innovation community gathered on Nov. 13 at Greentown Labs for the fifth annual event.

This year, the Houston Innovation Awards recognized more than 40 finalists, with winners unveiled in 10 categories.

Finalists and winners were determined by our esteemed panel of judges, comprised of 2024 winners who represent various Houston industries, as well as InnovationMap editorial leadership. One winner was determined by the public via an online competition: Startup of the Year.

The program was emceed by Lawson Gow, Head of Houston for Greentown Labs. Sponsors included Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more.

Without further adieu, meet the 2025 Houston Innovation Awards winners:

Minority-founded Business: Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.


Female-founded Business, presented by Houston Powder Coaters: March Biosciences

Houston cell therapy company March Biosciences aims to treat unaddressed challenging cancers, with its MB-105, a CD5-targeted CAR-T cell therapy for patients with relapsed or refractory CD5-positive T-cell lymphoma, currently in Phase 2 clinical trials. The company was founded in 2021 by CEO Sarah Hein, Max Mamonkin and Malcolm Brenner and was born out of the TMC Accelerator for Cancer Therapeutics.

Energy Transition Business: Eclipse Energy

Previously known as Gold H2, Eclipse Energy converts end-of-life oil fields into low-cost, sustainable hydrogen sources. It completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen.

Health Tech Business: Koda Health

Koda Health has developed an advance care planning platform (ACP) that allows users to document and share their care preferences, goals and advance directives for health systems. The web-based platform guides patients through values-based decisions with interactive tools and generates state-specific, legally compliant documents that integrate seamlessly with electronic health record systems. Last year, the company also added kidney action planning to its suite of services for patients with serious illnesses. In 2025, it announced major partnerships and integrations with Epic, Guidehealth, and others, and raised a $7 million series A.

Deep Tech Business: Persona AI

Persona AI is building modularized humanoid robots that aim to deliver continuous, round-the-clock productivity and skilled labor for "dull, dirty, dangerous, and declining" jobs. The company was founded by Houston entrepreneur Nicolaus Radford, who serves as CEO, along with CTO Jerry Pratt and COO Jide Akinyode. It raised eight figures in pre-seed funding this year and is developing its prototype of a robot-welder for Hyundai's shipbuilding division, which it plans to unveil in 2026.

Scaleup of the Year: Fervo Energy

Houston-based Fervo Energy is working to provide 24/7 carbon-free energy through the development of cost-competitive geothermal power. The company is developing its flagship Cape Station geothermal power project in Utah, which is expected to generate 400 megawatts of clean energy for the grid. The company raised $205.6 million in capital to help finance the project earlier this year and fully contracted the project's capacity with the addition of a major power purchase agreement from Shell.

Incubator/Accelerator of the Year: Greentown Labs

Climatetech incubator Greentown Labs offers its community resources and a network to climate and energy innovation startups looking to grow. The collaborative community offers members state-of-the-art prototyping labs, business resources and access to investors and corporate partners. The co-located incubator was first launched in Boston in 2011 before opening in Houston in 2021.

Startup of the Year (People's Choice): FlowCare

FlowCare is developing a period health platform that integrates smart dispensers, education, and healthcare into one system to make free, high-quality, organic period products more accessible. FlowCare is live at prominent Houston venues, including Discovery Green, Texas Medical Center, The Ion, and, most recently, Space Center Houston, helping make Houston a “period positivity” city.

Mentor of the Year, presented by Houston City College Northwest: Jason Ethier, EnergyTech Nexus

Jason Ethier is the founding partner of EnergyTech Nexus, through which he has mentored numerous startups and Innovation Awards finalists, including Geokiln, Energy AI Solutions, Capwell Services and Corrolytics. He founded Dynamo Micropower in 2011 and served as its president and CEO. He later co-founded Greentown Labs in Massachusetts and helped bring the accelerator to Houston.

2025 Trailblazer Award: Wade Pinder

Wade Pinder, founder of Product Houston, identifies as an "Ecosystem Wayseeker" and is the founder of Product Houston. A former product manager at Blinds.com, he has been deeply engaged in Houston’s startup and innovation scene since 2012. Over the years, he has supported hundreds of founders, product leaders, and community builders across the Houston area. In 2023, he was honored as Mentor of the Year in the Houston Innovation Awards.

America's first Ismaili Center set to open in Houston in December

Sneak Preview

The long-awaited Ismaili Center, Houston is set to open to the public next month. The 11-acre site has been painstakingly designed and constructed to offer indoor and outdoor public spaces for Houstonians to enjoy, connect, and engage. As the only Ismaili Center in the United States — and seventh in the world — it joins its international communities in London, Vancouver, Lisbon, Dubai, Dushanbe, and Toronto.

Nearly 20 years in the making, the Ismaili Center, Houston features a prayer hall, rotating art installations, a black box theater, a cafe, numerous social halls for weddings and other events, and nine acres of outdoor space and landscaped botanical gardens. Involved parties hope that the community will see the space as an extension of the neighboring parks along the bayou, and have included a garden entrance to the north lawn and gardens at the corner of Montrose Boulevard and Allen Parkway.

While Houston is known for its many community engagement centers, the architects and designers believe that the seamless integration of indoor and outdoor spaces sets the Ismaili Center, Houston apart from all others.

“What we know is the connections between buildings, environment, quality of life, and landscape — this is nothing new,” structural and facade engineer Hanif Kara says. “But, certainly, it’s hard to see that in other developments, particularly when they are done by developers. It’s quite difficult to find community spaces, and to see how quality of life is improved for everyone. I think we’ve all experienced that kind of hope that it will play out something like this.”

Designed by Farshid Moussavi Architecture and Nelson Byrd Woltz Landscape Architects, the remarkable 11-acre site is designed both to receive LEED Gold certification and to withstand the tests of Houston’s sometimes extreme weather conditions.

Principal architect Farshid Moussavi looks forward to seeing the Houston community utilize the space she’s worked so hard to deliver: “We’ve given the hardware to the community, now the software needs to come in. So I hope that there will be music recitals, or lectures, or book fairs, or other kinds of markets that can happen—even simultaneously. This is not an experiment, it’s the seventh in the world.”

Community welcome events are scheduled for December 12 and 13, but, until then, here are 10 features and things to know about the Ismaili Center, Houston.

What is the Ismaili Center, Houston?

“The use of the building is really meant for, or our hope, is that we are able to—on an enhanced view of what the community does today—have engagement on service projects, arts and culture, interfaith dialogue, and even just in bringing people together,” Omar Samji, Ismaili Council for the United States of America, says. “The notion of bringing people together in a place where it is easy to create connections because it’s an open space, and because it’s specifically designed to be a place where people interact and where people find commonality. Because whether you’re out in the gardens, or on the environs, or in the atrium, this enables connection.”

Who is His Highness the Aga Khan?

His Highness Prince Rahim Aga Khan V is the 50th hereditary Imam (spiritual leader) of the Shia Ismaili Muslims and a direct descendant of the Prophet Muhammad. He was educated at Philipps Academy in Andover and Brown University (Class of 1995). He became Imam in February 2025 upon the passing of his father, His Highness Prince Karim Aga Khan IV.

The Aga Khan promotes an understanding of Islam rooted in values of generosity, tolerance, pluralism, environmental stewardship, and the shared unity of humanity. He also chairs the Aga Khan Development Network (AKDN), one of the world’s largest private development agencies, which works across more than 30 countries to improve quality of life for marginalized communities regardless of faith or background.

The scale

The center stretches across an 11-acre site along Montrose Boulevard, from West Dallas to Allen Parkway. The physical building is 150,000 square feet, leaving nine acres for garden spaces on both the north and south sides of the building. The south side of the property is more formal, with gardens and community spaces that flank an 80-foot reflection pool and other water features. The gardens on the north side of the building are more informal, but densely planted and vast.

Photo by Iwan Baan

The creation

The development of the Ismaili Center was led by the Ismaili Council. It was initiated by His Highness Prince Karim Aga Khan IV (1936-2025), and completed under the leadership of his eldest son, Prince Rahim Aga Khan V.

The project was designed and constructed by a team of both local and international firms. Farshid Moussavi Architecture joined forces with structural and facade engineer Hanif Kara, co-founder and creative director of AKT II. DLR Group is the architect and engineer of record, while contractor McCarthy Building Companies built the project. Thomas Woltz, senior principal and owner of landscape architecture firm Nelson Byrd Woltz, along with principal Jeff Aten taking lead on the nine acres of garden space. The project is targeting LEED Gold certification.

The focus on native Texas plants and trees

The center will be recognized as a leading cultural asset for the City of Houston, complementing nearby institutions such as The Menil Collection, Rothko Chapel, Asia Society Texas, and the Museum of Fine Arts, Houston. While the surrounding gardens will add to the other notable Nelson Byrd Woltz projects within close proximity at Memorial Park, Rothko Chapel, and Rice University.

“We’ve been building massive projects in Houston for 12 years,” Woltz says. “We know the horticultural community in the region, and we did a deep, deep dive in ecological research to understand ‘What are the native plants of whatever region?’ It’s just baked into our process. Right when we are starting any project in Houston—right to the river. Look at the soils, ‘What are the plants appropriate to that place?’ Its solar aspect, its humidity, it’s moisture in soils, the shadow of the building.

But then, this idea of taking a section across the state of Texas, so that each of those distinct ecological regions is represented by one of the terraced gardens — so it’s very clear. It’s a diagram of the state of Texas and all of its native plants. This is functioning like a botanic garden and a repository for biodiversity — this is work in service.”

The eco-friendly exterior

The exterior of the building is clad in stone, a durable material with low embodied carbon. The stone cladding is a rainscreen over in-situ ‘fair-faced’ concrete walls, exposed on the interior to minimize additional material use. The concrete mix used has replaced 35-62 percent of Portland cement with fly ash and slag, reducing CO2 emissions by roughly 30 percent compared to standard mixes. The exterior stone rainscreen uses smaller tiles to increase the stone yield, utilizing 20-25 percent more of the irregular blocks they are cut from. This reduction in waste has also lent itself to crafting the cladding in a unique way.

The tessellation of the stone pieces changes across the building's surfaces to create different patterns on different sides of the buildings and at the corners. Relief stone tiles are used to add texture to the facades.

The space for outdoor events

The north-facing botanical gardens that will accommodate the 200-year flood plain offer a 27 foot gradient toward the building. This allowed for various levels of seating and gathering areas that culminate at an elevated terrace that will act as a stage for various events such as plays and concerts. Attendees can stretch out and enjoy the shows from an extensive lawn area that is surrounded by dense gardens of native trees and plants.

The black box theater

A 2,600-square-foot black box multipurpose space which seats 125 people is found on the second floor of the building’s west wing. It can host public events, such as exhibitions, film screenings, theatrical performances, music recitals, and other artistic programs throughout the year. It will also serve as a flexible space for teaching and learning. With acoustic isolation to surrounding spaces and the mechanical mezzanine above, it is designed to operate simultaneously without disrupting other events in the building. Design includes an upper-level control room, pipe grid, and flexible drapery and seating configurations to allow for a wide variety of programming.

The cafe

The center’s café is a 1,600-square-foot, double-height space located in the west wing (Montrose side) that opens onto an enormous terrace, offering visitors the option to enjoy their coffee or food outdoors. The terrace near the cafe is lined by an exterior wall and long, trough-style fountains that aid in noise reduction from Montrose Boulevard. The second-floor wall overlooking the Café is fully glazed, creating visual connection with the levels above.

The prayer hall

The prayer hall is 12,240 square feet, featuring a unique structural system of seven interlocking squares, formed from steel beams spanning the 115-by-115-foot open space. These beams are clad in concrete to enhance durability, beneath which lies a two-layer perforated aluminum ceiling with integrated diffused lighting. Its intricate pattern recalls the traditional jālī screens of Islamic architecture creating a soft, seemingly infinite ceiling effect, adding to the serenity of the prayer hall.

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A version of this article first appeared on CultureMap.com

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