Grant Verstandig

Founder, Chairman & CEO at red-cell-partners

Reviewed Updated Apr 6, 2026

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Location Washington, DC
Check Size $3M-$200M (across Red Cell incubation + follow-on)
Last Verified Investment Claros (Seed) — Mar 19, 2026
Social @grantverstandig LinkedIn
Stage Focus
pre-seed seed series-a series-b series-c
Sector Focus
healthcare digital-health defense cybersecurity ai precision-medicine directed-energy mental-health neurotech

Background

Grant Verstandig is the Founder, Chairman, and CEO of Red Cell Partners, a Washington, DC-based venture studio that builds and invests in technology companies across healthcare, cybersecurity, and national security 12. He is a native of Washington, DC 3.

Verstandig attended Brown University as a neurobiology major and lacrosse player but dropped out during his sophomore year after a chronic knee injury requiring multiple surgeries gave him firsthand experience with systemic failures in the U.S. healthcare system 34. At age 21, in April 2010, he founded Rally Health (originally named Audax Health), a consumer-centric digital health platform offering personalized wellness tools, provider comparison shopping, and benefits enrollment 345.

Rally raised over $55 million from investors including John Sculley (former Apple CEO) and Dr. John W. Rowe (former Aetna CEO) 4. In February 2014, UnitedHealth Group’s Optum division acquired a majority stake in Audax Health, and Verstandig was 24 years old at the time 56. The company was rebranded as Rally Health and fully acquired by UnitedHealth Group in 2017, described as one of the largest digital health exits at the time 37. From 2017 to 2021, Verstandig served as UnitedHealth Group’s Chief Digital Officer, overseeing digital platform strategy across the nation’s largest health insurer 13. He continues to serve as a Senior Advisor to UHG’s CEO 1.

In 2018, Verstandig co-founded Epirus, a directed energy and power management defense technology company, alongside John Tenet, Nathan Mintz, and others 89. He serves as Co-Founder and Executive Chairman of Epirus, which has raised over $500 million in total funding including a $200 million Series C at a $1.35 billion valuation in February 2022 910.

Verstandig founded Red Cell Partners in 2020, alongside investment management veteran Josh Lobel and venture capitalist John Tenet 2. He was named to the 2013 Forbes 30 Under 30 in healthcare and the 2018 Business Insider 30 Under 40 in health tech 311. He holds patents in advanced analytics, technology, and artificial intelligence 1.

Verstandig served as a former senior advisor to the National Security Agency on advanced analytics, technology, and AI 112. He is a member of the Aspen Institute’s Cybersecurity Group and the Aspen Institute’s Foreign Ministers Program 112. In 2024, he co-founded Valinor Enterprises alongside Trae Stephens (Founders Fund), Julie Bush (former Palantir SVP), and Paul Kwan (General Catalyst) as a defense-tech company incubator 13.

Stated Thesis

Verstandig has publicly stated that Red Cell was founded because “healthcare, defense, and cyber systems are overburdened, underprepared, and in desperate need of once-in-a-generation reinvigoration” 12. He has described Red Cell as “a mission-first organization with the right team, skills, network, and experience to become a force for lasting, positive change across all three industries” 2.

Red Cell operates as a venture studio rather than a traditional fund, building companies from inception rather than solely investing in external startups. Roger W. Ferguson Jr., Red Cell’s Chief Investment Officer, has described the model: “Rather than spreading investments across many companies hoping select few succeed, Red Cell methodically identifies, builds, and funds a smaller concentrated number” 14. He has also stated: “We build our companies from the first dollar up, so we know our startups intimately and understand what it takes to help them realize real revenue early on” 14.

Verstandig’s approach bridges his healthcare operating experience at Rally/UnitedHealth with defense and intelligence sector expertise gained through his NSA advisory role and relationships with senior defense officials 112.

Inferred Thesis

Based on 20 verified portfolio companies from Red Cell’s public portfolio page (encompassing both incubated and invested companies), plus Verstandig’s personal investments 15:

Sector Breakdown (20 Red Cell portfolio companies + 2 personal)

  • Healthcare: 8 of 22 (36%) — Zephyr AI, TARA Mind, Crux Health, LightBox Health, Savoy Life, Sparrow Healthcare, Envisagenics, Hero 15
  • National security / defense: 7 of 22 (32%) — DEFCON AI, Claros, DeployX, Epirus, Red 6, Valinor, Vantive Technology 15
  • Cybersecurity: 4 of 22 (18%) — Andesite, Hunted Labs, Evoke Security, Eyris (closed Dec 2024) 15
  • AI / enterprise: 2 of 22 (9%) — Trase Systems (agentic AI, healthcare/defense focus) 1516
  • Other: 1 of 22 (5%) — nTop (engineering software, personal investment) 17

Stage Distribution

Red Cell’s model is primarily incubation-stage, building companies from scratch. Of 20 Red Cell portfolio companies, 13 were internally incubated and 7 were external investments 115. The incubation-to-external-funding timeline averages 16 months 1. Red Cell then participates in follow-on rounds: - Pre-seed/incubation: TARA Mind ($3M pre-seed, 2023) 18 - Seed: DEFCON AI ($44M, 2024), Claros ($30M, 2026), Andesite ($38.5M total seed, 2024-2025) 192021 - Series A: Zephyr AI ($111M, 2024) 22 - Series C: Epirus ($200M, 2022) 10

Geographic Concentration

Heavily concentrated in the Washington, DC / Northern Virginia corridor, consistent with the defense and government customer base. Red Cell is headquartered in McLean, Virginia, and portfolio companies like DEFCON AI, Andesite, Claros, and Trase are all Virginia-based 11516.

Founder Profile Preferences

Strong preference for founders with government, military, or intelligence community backgrounds. Co-founders of Red Cell portfolio companies include: retired Air Force Gen. Paul Selva (DEFCON AI), Marcus Capone (Navy SEAL veteran, TARA Mind), and Brian Carbaugh (30+ year CIA/Marines veteran, Andesite) 192123. Red Cell also recruited former Defense Secretary Mark Esper as Partner and Chairman of its National Security Practice in 2022 24.

Co-investor Patterns

Red Cell frequently co-invests with General Catalyst (Andesite, Claros, Valinor), Bessemer Venture Partners (DEFCON AI), and Revolution Growth (Zephyr AI). The Valinor partnership with Founders Fund and General Catalyst suggests deepening institutional co-investment relationships 13192021.

Notable Characteristics

The venture studio model is the defining feature: Red Cell employs 71 full-time staff to support portfolio companies with hiring, legal, financial management, and go-to-market 1. This is closer to Idealab or Atomic than a traditional VC fund. Verstandig personally serves as co-founder and/or executive chairman of multiple portfolio companies (Trase, DEFCON AI, Andesite, Epirus, Zephyr AI), maintaining unusually deep operational involvement 18.

Portfolio

Company Stage Year Sector Status Source
Rally Health (Audax) Founded 2010 Digital health Acquired (UnitedHealth, 2017) 35
Epirus Co-founded; Series C 2018 Defense / directed energy Active ($1.35B valuation) 810
Red 6 Investment 2020 Defense / AR training Active 215
nTop Series C (personal) 2020 Engineering software Active 17
Envisagenics Series A lead 2021 AI drug discovery Active 25
Hero Investment 2021 Healthcare / medication mgmt Active 15
Zephyr AI Incubation; Series A ($111M) 2021 Precision medicine Active 1522
TARA Mind Incubation; Pre-seed ($3M), Seed ($8M) 2022 Mental health / psychedelics Active 151823
DEFCON AI Co-founded; Seed ($44M) 2022 Defense AI / logistics Active 1519
Andesite Co-founded; Seed ($38.5M total) 2023 Cybersecurity Active 1521
Savoy Life Incubation 2023 Healthcare / community health Active 15
Eyris Incubation 2023 Cybersecurity Closed (Dec 2024) 15
Claros Incubation; Seed ($30M) 2024 Data center energy / defense Active 1520
Crux Health Incubation 2024 Healthcare / pharma Active 15
DeployX Incubation 2024 National security Active 15
Hunted Labs Incubation 2024 Cybersecurity Active 15
LightBox Health Incubation 2024 Healthcare / revenue cycle AI Active 15
Sparrow Healthcare Incubation 2024 Healthcare Active 15
Trase Systems Co-founded; Pre-seed ($10.5M) 2024 Agentic AI Active 1516
Valinor Enterprises Co-founded (with Stephens, Bush, Kwan) 2024 Defense incubator Active 13
Vantive Technology Incubation 2024 National security Active 15
Evoke Security Investment 2026 Cybersecurity / agentic AI Active 15

This table represents the publicly disclosed Red Cell Partners portfolio plus Verstandig’s verified personal investment (nTop). Red Cell has created 15 companies and invested in 7, with portfolio companies raising approximately $497M combined as of March 2026 1.

In Their Own Words

“The stark reality is that our healthcare, defense, and cyber systems are overburdened, underprepared, and in desperate need of once-in-a-generation reinviguration. Red Cell is purpose-built to seize this opportunity.” — Grant Verstandig, Red Cell Partners launch announcement, March 2021 2

“These funds position Epirus to further disrupt an industry in desperate need of change and invention.” — Grant Verstandig, Epirus Series C announcement, February 2022 10

“Health has a very long feedback loop… People haven’t had the tools and support to engage in prevention and wellness.” — Grant Verstandig, Fortune, October 2016 4

On Mark Esper joining Red Cell, Verstandig described him as “an accomplished and visionary leader whose appointment comes at a pivotal point in Red Cell’s evolution.” — Defense News, April 2022 24

What Founders Say

Marcus Capone, co-founder and CEO of TARA Mind (Navy SEAL veteran), on Red Cell’s hands-on support: “Red Cell has everything a founder needs to help them carry out their dream and build their business. Really, everything you need to run a business from the operations side, Red Cell has it covered.” He added: “Red Cell was with me every step of the way. They made introductions, attended every meeting with investors, helped us put all our investor decks together.” — Red Cell Partners Founder Focus interview 23

Capone on Verstandig’s role in founding TARA Mind: “One of our early supporters was Red Cell Founder, CEO, and Chairman Grant Verstandig. Grant saw the life-saving outcomes that PAT was driving for VETS recipients and recognized a need to make this work available to the broader population.” — Red Cell Partners Founder Focus interview 23

Yisroel Brumer, co-founder of Zephyr AI and DEFCON AI, on Verstandig’s mentorship: “I benefited enormously from Grant Verstandig (Red Cell’s Founder, Chairman, and CEO), who spent an inordinate amount of time mentoring me about the startup world — usually between the hours of midnight and 6 a.m., which wasn’t great for my sleep, but was unbelievably helpful for my advancement.” — Red Cell Partners Founder Focus interview 26

Brumer on Red Cell’s incubation model: “The success of DEFCON is inextricable from Red Cell. The platform team has been critical to providing the foundation on which we’ve been able to build a successful company.” He added: “To me, the most important thing about Red Cell’s incubation process is that it makes building a company 1.) vastly easier, 2.) vastly more fun, and 3.) orders of magnitude more likely to succeed.” — Red Cell Partners Founder Focus interview 26

Peter Emigh, founder of Savoy Life, on choosing Red Cell: “As a first-time founder, having someone to partner with on this journey was critically important for me.” He noted: “Red Cell, on the other hand, was open to learning my story and willing to give me a lot of freedom to pursue my vision.” — Red Cell Partners Founder Focus interview 27

Note: All founder quotes above are sourced from Red Cell Partners’ own Founder Focus interview series. While they represent genuine founder perspectives, they were published on the firm’s website and should be considered in that context. No independently sourced founder testimonials were found through dedicated external searching.

Connections

  • Co-Founder and Executive Chairman, Epirus — alongside co-founders John Tenet and Nathan Mintz; board includes former Defense Secretary Mark Esper 8924
  • Co-Founder, Valinor Enterprises — alongside Trae Stephens (Founders Fund), Julie Bush (former Palantir SVP, CEO of Valinor), and Paul Kwan (General Catalyst) 13
  • Co-Founder, DEFCON AI — alongside retired Air Force Gen. Paul Selva (former Vice Chairman, Joint Chiefs of Staff) and Yisroel Brumer 19
  • Former Senior Advisor, National Security Agency — advisory role on advanced analytics, technology, and AI (through September 2023) 112
  • Senior Advisor, Brighton Park Capital — joined September 2019 28
  • Senior Advisor, UnitedHealth Group — ongoing advisory role to CEO following CDO tenure (2017-2021) 13
  • Red Cell Senior Advisors — George Tenet (former CIA Director), Dr. Sol Barer (co-founder/former CEO, Celgene), Dr. Jack Rowe (former CEO, Aetna), Ken Samet (CEO, MedStar Health), Jerry Yang (founder/former CEO, Yahoo!) 2
  • Red Cell Partner — Mark Esper (former U.S. Secretary of Defense), Chairman of National Security Practice (joined April 2022) 24
  • Red Cell Operating Partner — retired Air Force Gen. Paul Selva (former Vice Chairman, Joint Chiefs of Staff) 24
  • Aspen Institute Cybersecurity Group — member of the nation’s leading cross-sector public-private cybersecurity forum; Verstandig Family Foundation provided philanthropic support for the Aspen Global Cybersecurity Group 12
  • Board member: Third Option Foundation, International Spy Museum, Greater Washington Partnership (founding member) 1
  • Milken Institute — panelist at Global Conference 2023; panelist at Cancer 2035 summit, February 2026 29
  • Frequent co-investor: General Catalyst (Andesite, Claros, Valinor), Bessemer Venture Partners (DEFCON AI), Revolution Growth (Zephyr AI) 192021

Sources

  1. Red Cell Partners, “Grant Verstandig,” accessed April 2026. https://www.redcellpartners.com/member/grant-verstandig/↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  2. PR Newswire, “Red Cell Launches Investment and Incubation Firm to Build Leading Health Care and Defense Technology Companies,” March 2021. https://www.prnewswire.com/news-releases/red-cell-launches-investment-and-incubation-firm-to-build-leading-health-care-and-defense-technology-companies-301250255.html↩↩↩↩↩↩↩

  3. Verstandig Family Foundation, “Meet Grant,” accessed April 2026. https://verstandigfamilyfoundation.org/about-the-foundation/meet-grant/↩↩↩↩↩↩↩↩

  4. Fortune, “How a 27-Year-Old College Dropout Is Simplifying Health Care,” October 2016. https://fortune.com/2016/10/13/college-dropout-health-care/↩↩↩↩

  5. VentureBeat, “Audax Health’s 24-year-old CEO sells majority stake to UnitedHealth,” February 2014. https://venturebeat.com/business/audax-healths-24-year-old-ceo-sells-majority-stake-in-the-company-to-unitedhealth/↩↩↩

  6. UnitedHealth Group Newsroom, “Optum Acquires Majority Interest in Audax Health Solutions,” February 2014. https://www.unitedhealthgroup.com/newsroom/2014/0219optumacquiresaudax.print.html↩

  7. CNBC, “Where one of UnitedHealth’s first tech start-up acquisitions is today,” February 2022. https://www.cnbc.com/2022/02/17/where-one-of-unitedhealths-first-tech-start-up-acquisitions-is-today.html↩

  8. Epirus, “Grant Verstandig,” team page, accessed April 2026. https://www.epirusinc.com/team/grant-verstandig↩↩↩↩

  9. BusinessWire, “Epirus, Inc. Raises $70M in Series B Funding, Advancing Directed Energy For Defense and Commercial Applications,” December 2020. https://www.businesswire.com/news/home/20201217005156/en/CORRECTING-and-REPLACING-Epirus-Inc.-Raises-$70M-in-Series-B-Funding-Advancing-Directed-Energy-For-Defense-and-Commercial-Applications↩↩↩

  10. Epirus press release, “Epirus Raises $200 Million in Series C Funding,” February 2022. https://www.epirusinc.com/press-releases/epirus-raises-200-million-in-series-c-funding↩↩↩↩

  11. Rally Health / Business Insider, “Shaping the Future of Medicine: Rally Health Founder Grant Verstandig,” 2018. https://www.rallyhealth.com/news/shaping-the-future-of-medicine-rally-health-founder-grant-verstandig↩

  12. Aspen Digital, “Grant Verstandig — Global Cybersecurity Group,” accessed April 2026. https://www.aspendigital.org/person/grant-verstandig/↩↩↩↩↩

  13. Axios, “Exclusive: Valinor wants to build defense-tech ‘picks and shovels,’” October 2025. https://www.axios.com/2025/10/15/valinor-harbor-bush-stephens-kwan↩↩↩↩

  14. Red Cell Partners, “Why Red Cell, Why Now” by Roger W. Ferguson Jr., accessed April 2026. https://www.redcellpartners.com/perspectives/why-red-cell-why-now/↩↩

  15. Red Cell Partners, “Our Companies,” accessed April 2026. https://www.redcellpartners.com/companies/↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  16. Technical.ly, “Agentic AI startup Trase emerges from stealth with a $10.5 million pre-seed,” 2025. https://technical.ly/entrepreneurship/agentic-ai-startup-trase-raises-10m/↩↩↩

  17. PR Newswire, “nTopology Announces $40M Series C Funding Led by Insight Partners,” September 2020. https://www.prnewswire.com/news-releases/ntopology-announces-40m-series-c-funding-led-by-insight-partners-301130741.html↩↩

  18. BusinessWire, “Red Cell Partners Announces $3 Million in Pre-Seed Funding for Psychedelic Company TARA Mind,” April 2023. https://www.businesswire.com/news/home/20230413005149/en/Red-Cell-Partners-Announces-3-Million-in-Pre-Seed-Funding-for-Psychedelic-Company-TARA-Mind↩↩

  19. TechCrunch, “Defcon AI closes $44M seed round to solve a problem of ‘maximum complexity’: Military logistics,” August 2024. https://techcrunch.com/2024/08/20/defcon-ai-raises-44m-seed-to-help-solve-military-logistics/↩↩↩↩↩↩

  20. BusinessWire, “Claros Raises $30M Seed Round Co-Led By General Catalyst and Red Cell Partners to Redefine Data Center Energy From Chip to Grid,” March 2026. https://www.businesswire.com/news/home/20260319469046/en/Claros-Raises-$30M-Seed-Round-Co-Led-By-General-Catalyst-and-Red-Cell-Partners-to-Redefine-Data-Center-Energy-From-Chip-to-Grid↩↩↩↩

  21. BusinessWire, “Red Cell Partners and General Catalyst Co-Develop Andesite to Advance Cybersecurity for Analysts,” April 2024. https://www.businesswire.com/news/home/20240409453716/en/Red-Cell-Partners-and-General-Catalyst-Co-Develop-Andesite-to-Advance-Cybersecurity-for-Analysts↩↩↩↩↩

  22. BusinessWire, “Zephyr AI Raises $111 Million in Series A Financing,” March 2024. https://www.businesswire.com/news/home/20240312475536/en/Zephyr-AI-Raises-%24111-Million-in-Series-A-Financing↩↩

  23. Red Cell Partners, “Founder Focus: A Conversation with Marcus Capone,” accessed April 2026. https://www.redcellpartners.com/founder-focus/founder-focus-marcus-capone/↩↩↩↩

  24. Defense News, “Esper joins venture capital firm Red Cell,” April 2022. https://www.defensenews.com/industry/2022/04/13/esper-joins-venture-capital-firm-red-cell/↩↩↩↩↩

  25. PR Newswire, “Envisagenics Raises Series A Financing to Scale Its AI-powered RNA Splicing Drug Discovery Platform,” September 2021. https://www.prnewswire.com/news-releases/envisagenics-raises-series-a-financing-to-scale-its-ai-powered-rna-splicing-drug-discovery-platform-301387305.html↩

  26. Red Cell Partners, “Founder Focus: A Conversation with Yisroel Brumer, PhD,” accessed April 2026. https://www.redcellpartners.com/founder-focus/founder-focus-yisroel-brumer-phd/↩↩

  27. Red Cell Partners, “Founder Focus: A Conversation with Peter Emigh,” accessed April 2026. https://www.redcellpartners.com/founder-focus/founder-focus-peter-emigh/↩

  28. Brighton Park Capital, “Grant Verstandig,” team page, accessed April 2026. https://www.bpc.com/team/grant-verstandig↩

  29. Milken Institute, “Grant Verstandig — Global Conference 2023 Speaker,” accessed April 2026. https://milkeninstitute.org/events/global-conference-2023/speakers/grant-verstandig↩