David Helgason

Co-Founder & General Partner at transition-vc

Reviewed Updated Mar 31, 2026

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David Helgason is the co-founder and former CEO of Unity Technologies, now a climate-tech investor as co-founder and GP of Transition, a ~$200M fund based in London. His investing career has two phases: a Nordic-focused angel period (gaming, edtech, fintech) and a post-2021 institutional climate focus. Through Transition, he backs seed and Series A companies tackling planetary boundaries with de-risked science.

Location Reykjavík, Iceland
Check Size $50K-$6M
Last Verified Investment Flow Engineering (Seed) — Oct 14, 2025
Stage Focus

Background

David Helgason is an Icelandic entrepreneur, technologist, and investor best known as the co-founder and former CEO of Unity Technologies 12. Born in Iceland, he moved to Denmark at age 10 with his mother and two brothers 3. He studied physics, Arabic, psychology, and Middle Eastern studies at the University of Copenhagen but did not complete a degree 24.

Before Unity, Helgason co-founded two companies while still at university: Panmedia, a business processes tech company, and iCover, which created creative digital album cover experiences 3. In the summer after leaving university, he co-founded Over The Edge Entertainment (OTEE) — later renamed Unity Technologies — with Nicholas Francis and Joachim Ante in Copenhagen in 2003-2004 123. The trio originally set out to make video games but pivoted to licensing their game engine after recognizing it had broader market value 56.

Helgason served as CEO of Unity from founding until October 2014, growing the company to over 1,000 employees 17. He selected John Riccitiello, former CEO of Electronic Arts, as his successor 5. Unity went public on the NYSE in September 2020 2. Helgason retained approximately 4% of the company and remained on the board until February 5, 2026, when he stepped down after more than 20 years with the company 28. Unity CEO Matt Bromberg stated upon his departure: “David and Tomer have been vital partners as we’ve grown and transformed Unity” 8.

Helgason raised Unity’s Series A from Sequoia Capital in spring 2009 during the financial crisis, with Roelof Botha as the lead partner 59. He is a member of Founders Pledge, a community of entrepreneurs committed to strategic philanthropy 4. He has received the Gold Stevie Award for Tech Innovator of the Year 2.

After stepping down as CEO, Helgason became a prolific angel investor, backing more than 40 Nordic startups through the Nordic Makers syndicate 3. He also established a family office called Foobar 10. In 2022, he launched Transition Labs in Reykjavík to help climate tech companies scale in Iceland 11. In August 2023, he co-founded Transition, a climate-focused venture capital firm based in London with offices in New York and Reykjavík 1213.

Stated Thesis

(Self-reported: These represent what Helgason says publicly about his investing approach. See Inferred Thesis for analysis of actual investment behavior.)

As an angel investor, Helgason has stated that founders should “never underestimate the importance of following your own intuition” 3. He seeks founders with strong technical foundations and innovative approaches, focusing on early-stage companies in gaming, AI, and developer tools 14.

Through Transition, Helgason has articulated a climate-focused thesis grounded in the Stockholm Resilience Centre’s Planetary Boundaries framework, investing in companies that “by growing large and being successful, will significantly impact one or several of these boundaries, and not significantly hurt the others” 10. The firm backs “builders who make the impossible inevitable” and views climate as “a race between acceleration and degeneration” 15.

Helgason has stated: “Several of the solutions to the climate crisis already exist — but they need to be identified, invested in, and scaled up” 11. He has also said: “We have reached a pivotal moment where technological advancement, increased customer demand and new regulation has created unparalleled opportunities” 12.

On investment selection, Helgason requires the science to be de-risked before investing — he is willing to assume engineering, market, and execution risk but avoids companies still in early scientific research phases 10. He prefers companies whose capital trajectory does not require massive future mega-rounds, using the metaphor: “Is there a path all the way down the mountain where you can gain speed all the way down as a skier and not have to be lifted up along the way?” 10.

Helgason has described himself as “probably the most broadly invested LP in climate” and was an active LP in climate-focused funds before founding Transition 10.

Inferred Thesis

Based on 37 verified investments across angel and institutional vehicles, Helgason’s actual investment behavior reveals a two-phase career: a broadly diversified Nordic tech angel period (2014–2021), followed by a concentrated climate-tech institutional period (2021–present).

Stage distribution: Predominantly seed-stage. Based on verified rounds, the majority of angel investments were seed or pre-seed, with occasional Series A and Series B follow-ons (Labster Series A, Lunar Series B). Through Transition, the focus is seed and Series A with initial checks up to $6 million 10.

Sector breakdown (angel portfolio, ~25 verified investments): Gaming and interactive entertainment (7 of 25, 28% — Teatime Games, Raw Fury, Reface, Resolution Games, Sensible Object, Singa, Fractal 5), edtech (3 of 25, 12% — Labster, Aula, Headstart AI), fintech (3 of 25, 12% — Lunar, NOAH, ComplyAdvantage), health/biotech (3 of 25, 12% — Gerostate Alpha, HelixNano, Siren Care), developer tools and AI (3 of 25, 12% — Hugging Face, StdLib, Realm), consumer (3 of 25, 12% — Vivino, SpotAHome, Tech Will Save Us), other (3 of 25, 12% — Seaborg Technologies, Spiio, Genki Instruments).

Sector breakdown (Transition portfolio, 22 verified investments): Climate tech across multiple verticals including energy (Electricity Maps, Volter, Odyssey, Unigrid, Anthro Energy), industrial/biomanufacturing (FabricNano, Phase Biolabs), carbon removal (Running Tide, Transition Metal Solutions), water (Waterplan), transportation (Revoy, SixWheel/Upway), agriculture/food (Safi, Smatch), and consumer/climate (Heat Geek, Reel, Olix) 1315.

Geographic concentration: Angel investments heavily concentrated in Nordics (Denmark, Iceland, Sweden, Finland) with some European and US deals. Transition invests across the Atlantic from London, New York, and Reykjavík 1213.

Check size: Angel investments typically €50,000–€250,000 ($54,000–$270,000) 14. Through Transition, initial checks up to $6 million 10. Transition fund size approximately $200 million per SEC filing 13.

Founder profile patterns: Strong preference for technical founders and repeat founders. Gaming investments often backed founders from prior gaming companies (Teatime Games by QuizUp founders). Climate investments favor founders with deep domain expertise in hard sciences.

Co-investor patterns: Angel deals frequently alongside Nordic investors (Nordic Makers syndicate). Notable co-investors include Index Ventures, Atomico, Andreessen Horowitz, Balderton Capital, and Northzone 161718.

Notable gaps: Claims broad climate/sustainability focus but angel portfolio was predominantly gaming and consumer tech. The climate pivot is genuinely recent (post-2021), not a long-standing thesis. The stated “gaming the climate crisis” framing overstates the connection between his gaming background and climate investing approach.

Portfolio

This table represents approximately 37 of an estimated 70+ total investments. Sample is incomplete.

Angel / Personal Investments

Company Year Stage Sector Source
Labster 2017 Series A Edtech 18
Teatime Games 2017 Seed Gaming 16
Lunar ~2019 Series B Fintech 19
Reface 2020 Seed AI/Consumer 17
Raw Fury 2017 Seed ($600K) Gaming 2023
Hugging Face ~2018 Seed AI 20
Aula ~2017 Seed Edtech 20
Genki Instruments ~2017 Seed Hardware 20
Gerostate Alpha ~2018 Seed Biotech 20
Headstart AI ~2018 Seed AI/HR 20
HelixNano ~2020 Seed Biotech 20
Realm ~2017 Seed Developer tools 20
Resolution Games ~2016 Seed Gaming/VR 20
Seaborg Technologies ~2018 Seed Nuclear energy 20
Sensible Object ~2017 Seed Gaming 20
Singa ~2017 Seed Music/Consumer 20
Siren Care ~2017 Seed Health/Wearable 20
Spiio ~2016 Seed AgTech/IoT 20
SpotAHome ~2017 Seed Real estate 20
StdLib ~2017 Seed Developer tools 20
Tech Will Save Us ~2016 Seed Edtech/Consumer 20
Vivino ~2017 Seed Consumer/Wine 20
ComplyAdvantage ~2018 Seed Regtech 21
Preply ~2018 Seed Edtech 21
NOAH 2025 Seed Fintech 21
Flow Engineering 2025 Seed Climate/Industrial 21
NextMind ~2019 Seed Neurotech 14
CarboCulture ~2020 Seed Climate tech 14

Transition VC Portfolio

Company Year Stage Sector Source
Running Tide ~2022 Series B ($54M round) Ocean carbon removal 1223
FabricNano ~2021 Series A ($12.5M round) Biomanufacturing 121324
Electricity Maps 2024 Seed ($5.4M) Energy data 1225
Heat Geek 2024 Seed ($4.7M) Heat pumps 1226
Odyssey ~2022 Seed ($5.3M) Renewable energy marketplace 1227
Waterplan 2022 Seed ($7M) Water risk software 1328
Phase Biolabs 2022 Seed Gas fermentation/CO2 1329
Upway ~2023 Seed E-bike marketplace 15
Anthro Energy ~2023 Seed Battery tech 15
Olix ~2023 Seed Climate tech 15
Seneca ~2024 Seed Climate tech 15
Applied Atomics ~2024 Seed Nuclear/Energy 15
Skye ~2024 Seed Climate tech 15
Reel ~2023 Seed Sustainable consumer 15
Hybird ~2024 Seed Climate tech 15
Unigrid ~2024 Seed Energy storage 15
Volter ~2024 Seed Energy 15
Revoy ~2024 Seed EV/Transportation 15
Transition Metal Solutions ~2024 Seed Materials/Carbon 15
Safi ~2024 Seed Agriculture 15
Smatch ~2024 Seed Food/Climate 15
Valor ~2024 Seed Climate tech 15

Exits: QuizUp (acquired by Glu Mobile), Raw Fury, NextMind, and others — 9 total exits reported 21. Lunar reached unicorn status at $2.24 billion valuation 19.

In Their Own Words

On the early Unity days: “We had to fire a couple of people and were just the three co-founders left at the fifth floor at the Danish IT-University.” — David Helgason, Nordic Startup News interview 6.

On self-assessment as a founder: “I was a good co-founder. I would code, sell and fix the broken computer, and everyone has to do that, but I was not a great structurer/organizer.” — David Helgason, Nordic Startup News interview 6.

On running companies: “Running companies is like a liberal art, right? It’s not an engineering discipline.” — David Helgason, The Twenty Minute VC podcast, October 2020 5.

On board membership: An effective board member should be “a shock absorber for the company…slowing the process a little bit down and guiding the leadership into kind of a thoughtful process.” — David Helgason, The Twenty Minute VC podcast, October 2020 5.

On Roelof Botha (Sequoia): “He’s such a calm, such a rational person. He’s not going to bring emotions…and you won’t be able to rattle him easily.” — David Helgason, The Twenty Minute VC podcast, October 2020 5.

On climate investing: “It’s kind of embarrassing how fun the climate crisis is to work on.” — David Helgason, TechCrunch interview, June 2024 1.

On climate urgency: “To meet global climate goals, we have to act now. Every moment in speeding up deployment counts.” — David Helgason, Transition Labs announcement, May 2022 11.

On climate and capitalism: “Capitalism is pretty much the only game in town.” He seeks financial returns through genuine competitive advantage over incumbent solutions. “If we don’t find a way to create abundance, then I’m not sure we get the transition done.” — David Helgason, MCJ Podcast, 2023 10.

On investing in Reface: “I believe that Reface has the potential to be the next-generation personalization platform that enables the gamification of movies, music and beyond.” — David Helgason, Reface funding announcement, December 2020 17.

On investing in Labster: “Having worked closely with the amazing team at Labster over the past few years, I’ve had the opportunity to witness their incredible creativity, hard work, and determination first hand. Labster is a revolutionary educational tool and tools are the highest point of technology, helping us to achieve ambitious and inspirational goals.” — David Helgason, Labster Series A announcement, 2017 18.

What Founders Say

David Ortega, CEO of Phase Biolabs (Transition portfolio company), stated: “The biggest thing Transition has done for us is reinforce key business-building fundamentals.” — The Next Web, 2024 13.

Matt Bromberg, CEO of Unity, stated upon Helgason’s board departure: “David and Tomer have been vital partners as we’ve grown and transformed Unity. They welcomed me into the company, shared their unique vision as founders, and have provided unfailing support.” — PocketGamer.biz, February 2026 8. (Note: This is a colleague quote, not a portfolio founder testimonial.)

No additional independently sourced founder testimonials found from Helgason’s angel portfolio companies. Dedicated searches for founder quotes on Twitter/X, podcast transcripts, and startup announcements did not yield further results.

Connections

  • Board member, Unity Technologies (2003–February 2026) — alongside Jim Whitehurst (Chairman), Roelof Botha (Sequoia), Tomer Bar-Zeev (IronSource co-founder) 58
  • Board member, Labster — joined board as angel investor and advisor 18
  • Board member, Teatime Games — joined board alongside Index Ventures, Atomico 16
  • Board member, Lunar — serves as Non-Executive Director 19
  • Co-founder & Chairman, CleanPlay — climate-focused gaming initiative 22
  • Partner, Nordic Makers — angel syndicate of ten top Nordic angels 3
  • Co-founder & GP, Transition — alongside Ari Helgason (brother, formerly Index Ventures and Dawn Capital), Kristian Branaes (formerly Atomico, CPP Investments), Mona Alsubaei (formerly Union Square Ventures) 1013
  • Member, Founders Pledge — committed to philanthropic giving upon liquidity 4
  • Sequoia Capital relationship — Unity was Sequoia-backed since 2009; Roelof Botha was board member 9
  • Frequent co-investor with: Index Ventures, Atomico, Andreessen Horowitz, Balderton Capital, Northzone 161718

Sources


  1. TechCrunch, “Unity co-founder David Helgason’s next act: Gaming the climate crisis,” June 2, 2024. https://techcrunch.com/2024/06/02/unity-co-founder-david-helgasons-next-act-gaming-the-climate-crisis/

  2. BusinessABC, “David Helgason - Co-founder of Unity Software,” accessed March 2026. https://businessabc.net/wiki/david-helgason

  3. Seedcamp, “Unity Founder, David Helgason, on the journey from young developer to democratising game development,” accessed March 2026. https://seedcamp.com/views/unity-founder-david-helgason-on-the-journey-from-young-developer-to-democratising-game-development/

  4. Founders Pledge, “David Helgason,” accessed March 2026. https://www.founderspledge.com/members/189

  5. Deciphr.ai summary, “20VC: Unity Founder David Helgason on The Hypergrowth Early Days of Unity,” The Twenty Minute VC podcast, October 2020. https://www.deciphr.ai/podcast/20vc-unity-founder-david-helgason-on-the-hypergrowth-early-days-of-unity-why-running-a-company-is-like-a-liberal-art-the-secret-to-a-successful-ceo-transition-and-what-makes-roelof-botha-such-a-special-board-member

  6. Nordic Startup News, “The story of Unity Technologies — a talk with David Helgason,” accessed March 2026. https://nordicstartupnews.com/story-unity-technologies-talk-david-helgason/

  7. Gamedeveloper.com, “Helgason steps down as Unity CEO, and John Riccitiello steps up,” 2014. https://www.gamedeveloper.com/business/helgason-steps-down-as-unity-ceo-and-john-riccitiello-steps-up

  8. PocketGamer.biz, “Former Unity CEO David Helgason exits company as Bernard Kim joins board,” February 2026. https://www.pocketgamer.biz/former-unity-ceo-david-helgason-exits-company-as-bernard-kim-joins-board/

  9. Sequoia Capital, “David Helgason — Founder, Unity,” accessed March 2026. https://sequoiacap.com/founder/david-helgason/

  10. MCJ Podcast, “Capital Series: David Helgason, Transition,” 2023. https://mcj.vc/inevitable-podcast/david-helgason

  11. TechRound, “Leading Icelandic Investor/Entrepreneur David Helgason Announces Transition Labs to Accelerate and Scale Global Climate Solutions,” May 2022. https://techround.co.uk/news/leading-icelandic-investor-entrepreneur-david-helgason-announces-transition-labs-to-accelerate-and-scale-global-climate-solutions/

  12. NorthStack, “Transition, a new climate-focused venture capital firm launches,” August 2023. https://www.northstack.is/icelandic-climate-investor-david-helgason-launches-new-venture-capital-firm/

  13. The Next Web, “Meet the VC on a mission to bridge climate tech’s funding gap,” 2024. https://thenextweb.com/news/vc-transition-closing-climate-tech-funding-gap

  14. Investorlist, “David Helgason,” accessed March 2026. https://investorlist.com/investor/david-helgason

  15. Transition VC website, accessed March 2026. https://transition.vc/

  16. Nordic 9, “Teatime Games is a new gaming startup from Iceland, freshly funded by David Helgason, David Wallerstein and Index Ventures,” 2017. https://nordic9.com/news/teatime-games-is-a-new-gaming-startup-from-iceland-freshly-funded-by-david-helgason-david-wallerstei-news5577543906/

  17. TechCrunch, “Reface grabs $5.5M seed led by A16z to stoke its viral face-swap video app,” December 8, 2020. https://techcrunch.com/2020/12/08/reface-grabs-5-5m-seed-led-by-a16z-to-stoke-its-viral-face-swap-video-app/

  18. Labster blog, “Labster raises $10m in series A funding to bring virtual lab simulations to students around the world,” 2017. https://www.labster.com/blog/labster-raises-10m-in-series-a

  19. Arete Index, “David Helgason — Angel Investor,” accessed March 2026. https://www.areteindex.com/angels/david-helgason/

  20. The Hub, “Funding — David Helgason,” accessed March 2026. https://thehub.io/funding/david-helgason

  21. Nordic 9, “David Helgason (investor),” accessed March 2026. https://nordic9.com/companies/david-helgason-investor6596053506/

  22. ContactOut, “David Helgason — Icelandic entrepreneur and climate investor,” accessed March 2026. https://contactout.com/David-Helgason-93348

  23. VentureBeat, “Indie publisher Raw Fury raises $600,000 from former Unity CEO David Helgason and others,” December 2017, accessed April 2026. https://venturebeat.com/games/indie-publisher-raw-fury-raises-600000-from-former-unity-ceo-david-helgason-and-others/

  24. TechCrunch, “FabricNano raises $12.5M to help scale its cell-free fossil fuel alternative technology,” July 6, 2021, accessed April 2026. https://techcrunch.com/2021/07/06/fabricnano-raises-12-5m-to-help-scale-its-cell-free-fossil-fuel-alternative-technology/

  25. ESG Today, “Climate Tech Startup Electricity Maps Raises $5 Million to Scale Electricity Optimization Solutions,” May 2024, accessed April 2026. https://www.esgtoday.com/climate-tech-startup-electricity-maps-raises-5-million-to-scale-electricity-optimization-solutions/

  26. EU-Startups, “London-based Heat Geek secures 4.3 million to fuel a heat pump revolution in the UK,” March 2024, accessed April 2026. https://www.eu-startups.com/2024/03/london-based-heat-geek-secures-e4-3-million-to-fuel-a-heat-pump-revolution-in-the-uk/

  27. TechCrunch, “Odyssey Energy Solutions continues quest to electrify developing economies with $5.3M seed,” September 8, 2022, accessed April 2026. https://techcrunch.com/2022/09/08/odyssey-energy-solutions-continues-quest-to-electrify-developing-economies-with-5-4m-seed/

  28. Water Tech Online, “Waterplan closes $7 million seed round led by Transition Global and Giant Ventures,” April 2022, accessed April 2026. https://www.watertechonline.com/industry/article/14274984/waterplan-closes-7-million-seed-round-led-by-transition-global-and-giant-ventures

  29. Crunchbase, “Phase Biolabs Seed Round,” March 2022, accessed April 2026. https://www.crunchbase.com/funding_round/fabricnano-seed–592d4747