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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Houston hospitals win $50M grant for ibogaine addiction treatment research

ibogaine funding

The Texas Health and Human Services Commission has awarded $50 million to UTHealth Houston in collaboration with The University of Texas Medical Branch at Galveston (UTMB Health) to co-lead a multicenter research trial to evaluate the effect of ibogaine, a powerful psychoactive compound, on patients suffering from addiction, traumatic brain injury and other behavioral health conditions.

The funding will establish a two-year initiative—known as Ibogaine Medicine for PTSD, Addiction, and Cognitive Trauma (IMPACT)—and a consortium of Texas health institutions focused on clinical trials and working toward potential FDA-approved treatments.

The consoritum will also include Texas Tech University, Texas Tech University Health Sciences Center El Paso, The University of Texas at Austin, The University of Texas Health Science Center at San Antonio, The University of Texas at Tyler, The University of Texas Rio Grande Valley, Texas A&M University, The University of North Texas Health Science Center, Baylor College of Medicine and JPS Health Network in Dallas.

Ibogaine is a plant-based, psychoactive substance derived from the iboga shrub. Research suggests that the substance could be used for potential treatment for patients with traumatic brain injuries, which is a leading cause of post-traumatic stress disorders. Ibogaine has also shown potential as a treatment for addiction and other neurological conditions.

UTHealth and partners will focus on ways that ibogaine can treat addiction and associated conditions. Meanwhile, UT Austin and Baylor College of Medicine will concentrate on using it to treat traumatic brain injury, especially in veterans, according to a news release from the institutions.

The consortium will also support drug developers and teaching hospitals to conduct FDA-approved clinical trials. The Texas Health and Human Services Commission will oversee the grant program.

“This landmark clinical trial reflects our unwavering commitment to advancing research that improves lives and delivers the highest standards of care,” Dr. Melina Kibbe, UTHealth Houston president and the Alkek-Williams Distinguished Chair, said in the news release. “By joining forces with outstanding partners across our state, we are building on Texas’ tradition of innovation to ensure patients struggling with addiction and behavioral health conditions have access to the best possible outcomes. Together, we are shaping discoveries that will serve Texans and set a model for the nation.”

The consortium was authorized by the passage of Senate Bill 2308. The bill provides $50 million in state-matching funds for an ibogaine clinical trial managed by a public university in partnership with a drug company and a hospital.

“This is the first major step towards the legislature’s goal of obtaining FDA approval through clinical trials of ibogaine — a potential breakthrough medication that has brought thousands of America’s war-fighters back from the darkest parts of depression, anxiety, PTSD, and chronic addiction,” Texas Rep. Cody Harris added in the release. “I am excited to walk alongside UTHealth Houston and UTMB as these stellar institutions lead the nation in a first-of-its-kind clinical trial in the U.S.”

Recently, the University of Houston also received a $2.6 million gift from the estate of Dr. William A. Gibson to support and expand its opioid addiction research, which includes the development of a fentanyl vaccine that could block the drug's ability to enter the brain. Read more here.

Tesla no longer world's biggest EV maker as sales fall for second year

Tesla Talk

Tesla lost its crown as the world’s bestselling electric vehicle maker as a customer revolt over Elon Musk’s right-wing politics, expiring U.S. tax breaks for buyers and stiff overseas competition pushed sales down for a second year in a row.

Tesla said that it delivered 1.64 million vehicles in 2025, down 9% from a year earlier.

Chinese rival BYD, which sold 2.26 million vehicles last year, is now the biggest EV maker.

It's a stunning reversal for a car company whose rise once seemed unstoppable as it overtook traditional automakers with far more resources and helped make Musk the world's richest man. The sales drop came despite President Donald Trump's marketing effort early last year when he called a press conference to praise Musk as a “patriot” in front of Teslas lined up on the White House driveway, then announced he would be buying one, bucking presidential precedent to not endorse private company products.

For the fourth quarter, Tesla sales totaled 418,227, falling short of even the much reduced 440,000 target that analysts recently polled by FactSet had expected. Sales were hit hard by the expiration of a $7,500 tax credit for electric vehicle purchases that was phased out by the Trump administration at the end of September.

Tesla stock fell 2.6% to $438.07 on Friday.

Even with multiple issues buffeting the company, investors are betting that Tesla CEO Musk can deliver on his ambitions to make Tesla a leader in robotaxi services and get consumers to embrace humanoid robots that can perform basic tasks in homes and offices. Reflecting that optimism, the stock finished 2025 with a gain of approximately 11%.

The latest quarter was the first with sales of stripped-down versions of the Model Y and Model 3 that Musk unveiled in early October as part of an effort to revive sales. The new Model Y costs just under $40,000 while customers can buy the cheaper Model 3 for under $37,000. Those versions are expected to help Tesla compete with Chinese models in Europe and Asia.

For fourth-quarter earnings coming out in late January, analysts are expecting the company to post a 3% drop in sales and a nearly 40% drop in earnings per share, according to FactSet. Analysts expect the downward trend in sales and profits to eventually reverse itself as 2026 rolls along.

Musk said earlier last year that a “major rebound” in sales was underway, but investors were unruffled when that didn't pan out, choosing instead to focus on Musk's pivot to different parts of business. He has has been saying the future of the company lies with its driverless robotaxis service, its energy storage business and building robots for the home and factory — and much less with car sales.

Tesla started rolling out its robotaxi service in Austin in June, first with safety monitors in the cars to take over in case of trouble, then testing without them. The company hopes to roll out the service in several cities this year.

To do that successfully, it needs to take on rival Waymo, which has been operating autonomous taxis for years and has far more customers. It also will also have to contend with regulatory challenges. The company is under several federal safety investigations and other probes. In California, Tesla is at risk of temporarily losing its license to sell cars in the state after a judge there ruled it had misled customers about their safety.

“Regulatory is going to be a big issue,” said Wedbush Securities analyst Dan Ives, a well-known bull on the stock. “We're dealing with people's lives.”

Still, Ives said he expects Tesla's autonomous offerings will soon overcome any setbacks.

Musk has said he hopes software updates to his cars will enable hundreds of thousands of Tesla vehicles to operate autonomously with zero human intervention by the end of this year. The company is also planning to begin production of its AI-powered Cybercab with no steering wheel or pedals in 2026.

To keep Musk focused on the company, Tesla’s directors awarded Musk a potentially enormous new pay package that shareholders backed at the annual meeting in November.

Musk scored another huge windfall two weeks ago when the Delaware Supreme Court reversed a decision that deprived him of a $55 billion pay package that Tesla doled out in 2018.

Musk could become the world's first trillionaire later this year when he sells shares of his rocket company SpaceX to the public for the first time in what analysts expect would be a blockbuster initial public offering.

8+ can't-miss Houston business and innovation events in January

where to be

Editor's note: Kick off 2026 by hearing insightful talks and making meaningful connections in Houston's innovation scene. From networking workshops to presentations from major industry leaders, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Jan. 13 – Financing the Future

Hear from James Blake, head of capital markets at Fervo Energy, in this informative talk. Blake will cover the current investment landscape for geothermal power, how geothermal projects are structured and the role of policy incentives and innovative financing models in moving the industry forward. A small reception follows.

This event is Tuesday, Jan. 13, from 5:30-7:30 p.m. at the Ion. Register here.

Jan. 13 – Your Path to the Boardroom

Visit Sesh Coworking to hear from Keith Dorsey, an executive advisor and author of The Boardroom Journey, as he shares insights and lessons from hundreds of corporate board members and presents an actionable roadmap for women at every stage of their careers. Dorsey will speak on what "optimal diversity” means in the boardroom, how purpose-driven leaders sustain resilience under relentless pressure and why inclusive leadership is non-negotiable for growth and innovation.

This event is Tuesday, Jan. 13, from 6-8 p.m. at Sesh Coworking. Register here.

Jan. 14 — A Conversation with Dr. Wayne J. Riley on Leading Through Healthcare Transformation

Rice Business Partners will host Dr. Wayne J. Riley, president of SUNY Downstate Health Sciences University, for a moderated discussion with Dean Peter Rodriguez. Riley will share insights on leading complex healthcare organizations in an era of unprecedented industry challenges and reflect on his time at the Jones Graduate School of Business.

This event is Wednesday, Jan. 14, from 6:30-8:30 p.m. at McNair Hall on Rice University's campus. Register here.

Jan. 14 — VDW: Igniting Connections for Startup Success

Entrepreneurial communications instructor Diana Massaro will lead Lilie's latest Venture Development Workshop, focused on soft skills like clear communication, active listening and compelling introductions. Attendees will gain a personalized networking game plan and communication tools to turn casual encounters into meaningful relationships to support their ventures or careers.

This event is Wednesday, Jan. 14, from 6-7:30 p.m. at the Liu Idea Lab for Innovation and Entrepreneurship on Rice University's campus. Register here.

Jan. 21 — Upstream: Digital Tech Meetup

This month's Upstream: Digital Tech Meetup will explore how AI and real-time monitoring are being applied in safety-critical offshore environments, what’s working today, where the biggest gaps remain going into 2026 and how operators and service companies are approaching adoption. Expect to hear from leaders at NOV, Incom Solutions, Timbergrove and others.

This event is Wednesday, Jan. 21, from 8:30-10:30 a.m. at the Ion. Find more information here.

Jan. 22 — HEAD AND HEART: Leading Technology with Humanity While Everything Changes

Hear from Chris Hyams, former CEO of Indeed, at the latest installment of Rice's Master of Engineering Management & Leadership Seminar Series. Hyams will present on the intersection of technology, humanity and change—and how AI is reshaping all three.

This event is Thursday, Jan. 22, at 6 p.m. at Duncan Hall on Rice University's campus. Find more information here.

Jan. 22 – NASA Tech Talk

This month's NASA Tech Talks will feature a special delegation from the UK Science and Technology Network. Expect to hear from a panel of UK space experts, followed by a fireside chat featuring David Alexander, head of the Rice Space Institute, and Meganne Christian, ESA reserve astronaut and senior exploration manager.

This event is Thursday, Jan. 22, from 6-7 p.m. at the Ion. Find more information here.

Jan. 29 – Ignition Hub Startup Career Fair

Lilie will host the Ignition Hub Startup Career Fair this month in partnership with Rice University’s Center for Career Development and Career Development Office. The fair will bring together some of the most innovative, high-growth companies to offer Rice students exciting opportunities. Startups can apply to be considered for the fair. The event is open to Rice University undergraduate, graduate, MBA, and PhD students.

This event is Thursday, Jan. 29, at Grand Hall on Rice University's campus. Find more information here.

Jan. 29 – Health Policy Symposium: Value-Based Care & the Health Care Workforce

The Humana Integrated Health Systems Science Institute at the University of Houston will host its latest Health Policy Symposium this month, focused on the evolving landscape of value-based care and the importance of preparing and strengthening the health care workforce. Hear keynote addresses from leaders at Humana, UH, the American Medical Association and Houston Health Department.

This event is Thursday, Jan. 29, from 11:30 a.m.-1:30 p.m. at the Tilman J. Fertitta Family College of Medicine on Rice University's campus. Find more information here.

Jan. 30 — GHP Annual Meeting

The Greater Houston Partnership's premier event will highlight the region’s progress, honor visionary leadership and set the tone for the year ahead. Hear reflections from outgoing board chair, Gretchen Watkins (former -president of Shell USA); welcome incoming board chair, Armando Perez (EVP of H-E-B Houston); and more

This event is Friday, Jan. 30, from 11:30 a.m.-1:30 p.m. at Hilton Americas. Find more information here.

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