Stephen Oskoui

Background

Stephen Oskoui is the co-founder and Managing Partner of Gigafund, a venture capital firm he launched in 2017 alongside Luke Nosek, a co-founder of PayPal and Founders Fund ¹². Before co-founding Gigafund, Oskoui served as a Venture Partner at Founders Fund starting in November 2015 ³⁴.

Oskoui grew up in Pittsford, New York, and attended Pittsford-Mendon High School ⁵. As a high school student, he participated in a summer program at the University of Rochester’s Laboratory for Laser Energetics, where he designed an OMEGA laser component; his work was published in the journal Optics Letters and resulted in a $2 million prototyping investment ⁵. In 1997, he was named one of 40 finalists in the Westinghouse Science Talent Search for that research ⁵⁶.

Oskoui studied computer science at Stanford University, where he received the Stanford President’s Scholar award as a first-year student ⁵. He left Stanford after his junior year in 2000 to pursue entrepreneurial opportunities ⁵.

In 2001, Oskoui founded Smiley Media (originally Smiley Networks), a performance-based digital advertising company based in Silicon Valley ⁵¹. The company was entirely bootstrapped, raising no outside capital, and grew into a two-time Inc. 500 company generating $50 million in annual revenue and driving more than $1 billion in attributable sales for its clients ¹⁵. Oskoui was one of the first to apply A/B testing at scale, running millions of marketing experiments ¹. In 2012, he relocated the company to Austin, Texas ⁵.

As an angel investor, Oskoui made a $3 million investment in Rover (a content discovery application, formerly known as Flipora and Infoaxe) and drove the mergers and acquisitions process that resulted in its acquisition by Revcontent in February 2017 for “north of $30 million” in cash and stock ⁷⁸.

Oskoui also co-founded the Endorse Liberty Super PAC in December 2011 to support Ron Paul’s 2012 presidential campaign, contributing $606,000 during the 2011-2012 cycle ⁵.

Stated Thesis

Gigafund publicly describes its investment approach as seeking companies “expected to be one of the world’s most significant and transformative businesses 20 years from today” ². The firm states it invests across all sectors, geographies, and stages, prioritizing founders committed to decade-long tenures who employ first-principles thinking ²⁹.

Oskoui has described looking for founders who “look past short-term trends, industry structures, and technology opportunities” to tackle humanity’s biggest challenges ⁹. The firm’s stated approach emphasizes an “extremely concentrated, multi-decade” investment strategy focused on “capital-intensive, physical-world technology companies like reusable rockets, brain-computer interfaces, and nuclear micro-reactors” ¹⁰.

On his LinkedIn profile, Oskoui has shared that successful founders “simplify where legacy players have overcomplicated things, don’t wait or overthink, act and embrace failing quickly and cheaply, and learn from failures to iterate at rapid speed” ³. He has also noted that the best founders “refuse unpaid pilots and find a way to generate real revenue immediately” ³.

Inferred Thesis

Based on 18 verified investments, Oskoui’s actual portfolio reveals a highly concentrated strategy dominated by Elon Musk-affiliated companies and capital-intensive deep-tech bets. The portfolio is unusually concentrated compared to typical venture investors, with the majority of deployed capital going to a small number of companies.

Sector breakdown (18 verified investments): - Aerospace/space: 1 of 18 (6%) but >$1B deployed (SpaceX), representing the vast majority of capital - Transportation/infrastructure: 2 of 18 (11%) — The Boring Company, Cover - Biotech/life sciences: 4 of 18 (22%) — Neuralink, Emerald Cloud Lab, LabGenius, Gordian Biotechnology - Clean energy: 2 of 18 (11%) — Last Energy, Panthalassa - AI/computing: 3 of 18 (17%) — Luminous Computing, Gauntlet AI, Golden - InsurTech/health: 1 of 18 (6%) — Sana Benefits - Manufacturing/hardware: 2 of 18 (11%) — Veryable, Atomic Machines - Media/entertainment: 1 of 18 (6%) — Angel Studios - Education: 1 of 18 (6%) — Lambda School (BloomTech) - Real estate/proptech: 1 of 18 (6%) — Sunroom Rentals

Stage distribution: The firm invests across stages from seed to growth, contrary to the stated seed/Series A focus. Gigafund led Lambda School’s $74M Series C ¹¹, Cover’s $60M Series B ¹², Othram’s $18M Series B ¹³, and Angel Studios’ $47M round ¹⁴. Multiple seed investments include Golden ($5M seed, 2019) ¹⁵ and Sana Benefits ($3.6M seed, 2019) ¹⁶. The SpaceX position spans multiple growth rounds over many years ¹⁷.

Check size: Stated as $1M-$5M, but actual deployed capital varies enormously. The $1B+ SpaceX position dwarfs the stated range. For non-Musk companies, the firm has led rounds of $18M-$74M, suggesting much larger check sizes than the stated range for conviction bets.

Geographic concentration: Heavily weighted toward Austin, Texas-based companies (Veryable, Sana Benefits, Sunroom Rentals, Gauntlet AI). Several portfolio companies are in the San Francisco Bay Area (SpaceX HQ in Hawthorne, CA; Emerald Cloud Lab; Golden). A few investments are outside the US (LabGenius in London, Panthalassa).

Founder profile patterns: Strong preference for founders tackling physical-world, capital-intensive problems. Multiple investments in founders building vertically integrated, full-stack companies (Cover, Veryable, Sana Benefits). Connection to the Founders Fund/PayPal network is a clear pattern — Gigafund co-invests frequently with Founders Fund.

Co-investor patterns: Frequent co-investment with Founders Fund (Cover Series A co-led by Founders Fund ¹²; Golden seed included Founders Fund ¹⁵). Other recurring co-investors include Trust Ventures, Valor Equity Partners, and a16z.

Notable gaps: Despite claiming to be sector- and geography-agnostic, the portfolio shows minimal investment in pure software/SaaS, consumer internet, or fintech. The “no sector limits” positioning understates the firm’s strong revealed preference for hard tech and physical-world companies.

Active investor signal: Gigafund’s most recent verified investment was in Last Energy’s $100M Series C in December 2025 ¹⁸, confirming the firm remains active.

Portfolio

This table represents approximately 20 investments. Tracxn reports 28 total Gigafund investments as of December 2024 ¹⁹, suggesting this table captures roughly 71% of known investments.

In Their Own Words

On Othram’s forensic genomics platform: “Far too many violent crimes remain unsolved. Othram’s technology has helped investigators close an impressive number of cold cases, and we believe this will one day become standard practice for law enforcement.” — Stephen Oskoui, Managing Partner of Gigafund, in Othram’s Series B announcement, September 2021 ¹³.

On Angel Studios: “Angel Studios helps creators build a direct relationship with their fans and produce meaningful content for underserved audiences.” — Stephen Oskoui, Managing Partner of Gigafund, in Angel Studios’ funding announcement, January 2022 ¹⁴.

On the Rover-Revcontent merger: “With the performance of Rover’s machine learning technology and Revcontent’s focus on the success of its publishers and advertisers, I expect the combined company to rapidly become the leader in content recommendation advertising.” — Stephen Oskoui, quoted in the acquisition announcement, February 2017 ⁷.

What Founders Say

A founder testimonial attributed to Rover’s CEO on Oskoui’s LinkedIn profile states: “I had the opportunity to work closely with Steve as Founder/CEO of Rover. Steve was our lead investor and Board Member and added a ton of value to the company. He played a key role in helping us take Rover to a successful exit.” The testimonial further noted: “One of Steve’s strengths is identifying non obvious yet completely game changing strategic opportunities, that end up unlocking a ton of value for all stakeholders” and “Given Steve’s impact on the company and his contribution towards taking Rover to a successful exit, it’s fair to say Steve added value at the scale of a co-founder of the company” ³.

Neal Harmon, co-founder and CEO of Angel Studios, said of the Gigafund-led $47M investment: “This raise gives us more than funding; it gives us key strategic partners who will help us realize our long-term mission of remaking the entertainment industry” ¹⁴.

No additional independently sourced founder testimonials found beyond these two sources.

Connections

• Board member, Gauntlet AI ¹
• Board member, Veryable ¹
• Board member, Sana Benefits ¹
• Board member, Cover Homes ¹
• Board member, Emerald Cloud Lab ¹
• Board member, Othram — joined board following Series B lead investment in 2021 ¹³
• Board member, Love.Life ¹
• Board member, Utility Profit ¹
• Board observer, Last Energy ¹
• Board observer, Angel Studios ¹
• Board member, Lambda School (BloomTech) — joined board with Series C lead investment in 2020 ¹¹
• Former Venture Partner, Founders Fund (November 2015 – 2017) — worked alongside Luke Nosek, Peter Thiel, and Ken Howery ⁴⁵
• Co-founder, Endorse Liberty Super PAC (2011-2012) — alongside Jeffrey Harmon and Ladd Christensen; PAC raised $4M+ supporting Ron Paul’s presidential campaign ⁵
• Co-investor relationships: Frequent co-investment with Founders Fund, Valor Equity Partners, Trust Ventures, Andreessen Horowitz ¹²¹⁵¹⁶

Sources