Ilya Fushman

Background

Ilya Fushman is a General Partner at Kleiner Perkins, where he joined in March 2018 as a General Partner and Managing Member ¹. He was recruited alongside Mamoon Hamid to reboot Kleiner Perkins’ early-stage practice after a difficult decade for the firm ².

Fushman was born in Kazan, Russia, and has lived in Rehovot, Frankfurt, New York City, Pasadena, and the San Francisco Bay Area ³. He speaks Russian, German, and English ³.

His academic background is in the physical sciences: he holds a BS in Physics from Caltech, an MS in Electrical Engineering from Stanford University, and a PhD in Applied Physics from Stanford University ¹. Early in his career, he built automation software for a biology lab at Rockefeller University ³.

After completing his doctorate, Fushman joined Dropbox as one of the company’s first 75 employees ¹. Over approximately four years there (roughly 2011–2015), he helped build and run the company’s business and corporate development functions before taking on a product leadership role and building out Dropbox for Business and the developer platform ⁴. In his own words: “I absolutely loved venture. I love the opportunity to work with different companies, be hands on, dive into different sectors and relive this product discovery process over and over and over again.” ⁵

In May 2015, Fushman joined Index Ventures as the firm’s first new General Partner since 2010 — a notable hire given his operating background at a high-growth company ⁶. At Index he held board positions at companies including Slack, Intercom, Optimizely, KeepTruckin, CultureAmp, Built, CoverWallet, Scratch, and Nova Credit ¹.

On March 5, 2018, Kleiner Perkins announced that Fushman would join as General Partner and Managing Member ¹. Fushman said of the move: “Kleiner Perkins is a firm I have long revered. To be part of building such an iconic brand as it gears up for the future is an opportunity I could not miss.” ¹

Mamoon Hamid, who joined KP from Social Capital in 2017, had collaborated with Fushman through their shared involvement in Slack and Intercom, and called Fushman “exactly the type of investor we had in mind.” ¹

Since joining Kleiner Perkins, Fushman has led or co-led investments in Rippling (Series A, 2019), Loom (Series A, 2019), Stord (Series A and Series D), Productboard (Series A, 2018), Infinitus Systems (Series A, 2021), Harvey (Series B and E), NewLimit (multiple rounds), Profound (Series A, 2025), and Harmonic (Series B, 2025), among others ^{7891011121314}.

Stated Thesis

Fushman publicly describes his focus as investing in early- and growth-stage companies “that are aiming to fundamentally reshape industries through technology and novel business models.” ³ He invests across enterprise software, financial services, and consumer software ³.

He is explicitly “thesis-informed” rather than “thesis-driven,” drawing a deliberate distinction: “When you’re truly thesis driven, you have a bias…as opposed to finding the team in a space that you think is interesting that has what it takes to build something that’s big.” ¹⁵

On founder selection, Fushman says the most important characteristics are: “Adaptability, ability to learn, ability to take risks, the ability for storytelling.” ¹⁵ He adds: “When you get in to early stage investing, the investments are 80–90% based on the team.” ¹⁵

He is particularly focused on vertical AI applications — companies applying AI to specific professional sectors. He told TechCrunch in February 2024: “AI requires distribution and it requires data to improve the product experience, so the first movers who define a category of a product can, in our view, run much faster than anyone else.” ¹⁶

Fushman emphasizes concentrated, hands-on investing. He draws on his operating background at Dropbox to work closely with a small number of portfolio companies on early go-to-market, packaging and pricing, and product strategy ³.

Inferred Thesis

Based on 20 verified investments across Fushman’s career at Index Ventures and Kleiner Perkins, the following patterns emerge. (Note: This is a subset of his full portfolio; PitchBook lists 40+ investments total. The analysis below covers confirmed, publicly sourced entries only.)

Stage distribution (20 verified investments): - Lead/co-lead at Series A: 10 investments (50%) — Rippling, Loom, Stord, Loom, Productboard, KeepTruckin, CultureAmp, Slack, Harvey (Series B led as Series B equivalent), Infinitus - Growth stage (Series D+): 5 investments (25%) — Stord Series D, Harvey Series E, Motive Series F, NewLimit Series B, Rippling follow-ons - Seed/pre-seed: 2 investments (10%) — Nova Credit (early), Intercom (early) - Later-stage follow-on: 3 investments (15%) — Harmonic Series B, Profound Series A, NewLimit Series A

Sector breakdown (20 verified investments): - Enterprise software / SaaS: 9 of 20 (45%) — Slack, Intercom, Optimizely, Productboard, Loom, Rippling, Harvey, Profound, CultureAmp - Physical economy / logistics / fleet: 3 of 20 (15%) — KeepTruckin/Motive, Stord (2 rounds) - AI/deep tech: 3 of 20 (15%) — Harvey, Harmonic, NewLimit - Healthcare / health tech: 2 of 20 (10%) — Infinitus Systems, NewLimit - Fintech: 2 of 20 (10%) — Nova Credit, Scratch (fintech lending) - Other: 1 of 20 (5%) — Built (construction fintech)

Key patterns not fully reflected in stated thesis: - Strong preference for product-led growth companies. Loom, Dropbox, Slack, and Productboard all used bottoms-up, freemium-to-enterprise models. Fushman’s Dropbox background informs this pattern directly. - Repeat backing of companies where he has prior conviction. Fushman co-led Harvey’s Series B (December 2023) and then “quadruple down” on the Series E (June 2025) ¹⁷. He backed NewLimit in multiple rounds ¹⁴. - “Physical economy” as a distinct thesis: KeepTruckin/Motive (fleet management), Stord (supply chain), representing consistent coverage of technology serving physical industries undergoing digitization. - Scientific/deep tech credibility: Fushman’s physics PhD and former-physicist identity appears to inform his interest in Harmonic (mathematical reasoning AI) and NewLimit (genomics/longevity) — areas that other generalist enterprise investors avoid. - Geographic concentration: All known investments are US-headquartered, primarily San Francisco Bay Area. No disclosed international bets. - Co-investor patterns: Frequently co-invests with Sequoia Capital, Elad Gil, Khosla Ventures, and Founders Fund. Mamoon Hamid co-led Rippling with Fushman.

Sample size caveat: 20 of 40+ known investments are publicly verifiable from press releases and announcements. The remaining investments may shift these percentages.

Portfolio

In Their Own Words

On what he looks for in founders:

“Adaptability, ability to learn, ability to take risks, the ability for storytelling, are the pieces I look for in founders.” ¹⁵

“In order to be a great founder, you need to take the right risk at the right time.” ¹⁵

“When you get in to early stage investing, the investments are 80–90% based on the team.” ¹⁵

On being “thesis-informed” versus “thesis-driven”:

“When you’re truly thesis driven, you have a bias…as opposed to finding the team in a space that you think is interesting that has what it takes to build something that’s big.” ¹⁵

On AI’s competitive dynamics (TechCrunch, February 2024):

“AI requires distribution and it requires data to improve the product experience, so the first movers who define a category of a product can, in our view, run much faster than anyone else.” ¹⁶

On joining Kleiner Perkins (March 2018):

“Kleiner Perkins is a firm I have long revered. To be part of building such an iconic brand as it gears up for the future is an opportunity I could not miss.” ¹

On Rippling’s total addressable market (Kleiner Perkins case study):

“Rippling clearly has an unbounded total addressable market — it could be in almost every company.” ²³

On Stord’s potential (Series D announcement, September 2021):

“Stord will become for the supply chain what Amazon Web Services is for cloud computing—an intelligent, reliable, and scalable utility.” ²⁰

“Trillions of dollars will move online in the next few years, and supply chains need to catch up to this transition. Stord is democratizing logistics for growing businesses at a time when retailers across the economy are massively increasing their investment in their supply chain.” ²⁰

On Motive (Series F announcement, May 2022):

“Motive is a leader in providing digital and financial infrastructure for the physical economy — an incredibly large market undergoing rapid transformation.” ²¹

On Harvey’s Series E (June 2025):

“It sets the blueprint for how a vertical AI enterprise company can build and execute.” ¹⁷

On Productboard investment (July 2018):

“Product management is a core function in every technology organization, but few dedicated tools exist for it. With productboard, fast-moving businesses can better combine insights with execution.” ⁷

On NewLimit’s Series B (May 2025):

“Pushing the boundaries of human life span and health span is an incredibly ambitious goal and has the potential to improve the lives of everyone on the planet. By pairing scaled genomics with frontier AI, NewLimit is accelerating advancements at a pace that the field has not seen before.” ¹⁴

On Harmonic’s Series B (July 2025):

“Harmonic has created a new foundation for verified, scalable reasoning that can be trusted in high-stakes environments. I’m deeply excited about the applications of Aristotle not just for software, but for accelerating progress across science, engineering and general intelligence.” ²²

On Loom’s early adoption pattern:

“People were just using it like crazy.” ²⁴

On building organizational alignment at scale (Intercom podcast):

“Communication is incredibly important. The way information spreads in an organization is a diffusive process.” ⁵

“You need a clear narrative that everybody in the company understands.” ⁵

What Founders Say

Parker Conrad, CEO of Rippling, on Kleiner Perkins’ Series A investment in April 2019:

“Kleiner Perkins was probably the only VC firm I could have named when I was in high school, and I’m thrilled to be able to call them an investor in my new company.” ⁸

Conrad also stated that Hamid and Fushman “have played a critical role in building some of the Valley’s iconic SaaS businesses” and expressed enthusiasm about having them on the board ⁸.

No independently sourced founder testimonials specifically about Fushman’s post-investment support or board conduct were found beyond the above. The Loom case study on the Kleiner Perkins website and podcast episode with Joe Thomas (October 2024) provide context on the Loom relationship but do not contain direct testimonials from the Loom founders about Fushman’s board performance. [Firm website and public announcements reviewed; no independent founder testimonials available at this time.]

Sources