Elizabeth Yin

Background

Elizabeth Yin is the Co-Founder and General Partner of Hustle Fund, a pre-seed venture fund she co-founded in 2017 with Eric Bahn and Shiyan Koh ¹². The three co-founders have known each other for over 20 years, since attending Stanford together ³.

Yin holds a BS in Electrical Engineering from Stanford University and an MBA from MIT Sloan School of Management, where she focused on entrepreneurship, marketing, strategy, and high tech ⁴⁵. She started her career as a teenager doing back-end programming for startups during the dot-com boom ⁶. She later worked as a Marketing Engineer at National Instruments Japan and then as a Product Marketing Manager at Google from 2007 to 2008, where she led marketing for social APIs including OpenSocial ⁴⁵.

In late 2008, Yin left Google to become a founder ⁶. After experimenting with affiliate sites and various web projects, she co-founded LaunchBit, an ad-tech company that helped SaaS companies find customers through email ad networks ⁷⁸. LaunchBit went through the 500 Startups accelerator (Batch 2) and raised a seed round of under $1 million from 500 Startups, Tony Hsieh’s VegasTech Fund, TriplePoint Capital, and others ⁷. LaunchBit was acquired by BuySellAds in September 2014 ⁷.

Following the acquisition, Yin joined 500 Startups as a partner in late 2014, where she invested in seed-stage companies and ran the Mountain View accelerator program starting in early 2015 ⁶⁹. She resigned from 500 Startups in July 2017, citing concerns about the firm’s lack of transparency in its handling of sexual harassment allegations against co-founder Dave McClure ⁹. She co-founded Hustle Fund shortly after, with Fund I closing at $11.5 million in September 2018 ¹.

Yin is also the author of the book Democratizing Knowledge: How to Build a Startup, Raise Money, Run a VC Firm, and Everything in Between ¹⁰.

Stated Thesis

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

Hustle Fund describes itself as investing in “hilariously early startups” at the pre-seed stage ¹¹. Yin has stated that their definition of pre-seed means “you’ve got a product, but you have no traction” — almost all companies they invest in have no or insignificant revenue ¹².

Yin has stated that speed of execution is her primary evaluation criterion. She has said: “At this stage, speed really matters… The more iterations you can get in, the greater the probability of success” ¹³. She has also noted that she does not focus on KPIs or traction at this stage, as traction can be misleading in the earliest stages ¹².

On founder selection, Yin has stated that she values scrappiness: “Scrappiness…matters to me. I like founders who have thought deliberately about their customer acquisition” ¹². She has also said she prefers “the founder who has less glitz and glamour and just gets to work” ¹⁴.

The firm does not invest in deep tech, most hardware, pharmaceutical or medical device companies, art/film projects, land, restaurants, physical retail, or traditional brick-and-mortar small businesses ¹¹. Their primary geographic focus is the United States, Canada, and Southeast Asia, with selective expansion into Africa and Latin America ¹¹.

Inferred Thesis

The analysis below is based on publicly available data from Tracxn (375 investments as of February 2026), Crunchbase (224 investments), VCBacked (242 companies), and the Hustle Fund founders page ^15161718.

Note on sample size: With 375 reported investments, Hustle Fund is one of the most prolific pre-seed investors. However, individual company-level data is only available for a subset. The sector breakdown below uses Tracxn’s classification of 375 investments, which provides the most comprehensive view.

Sector concentration (based on Tracxn classification of 375 investments): - Enterprise / B2B: 216 of 375 (58%) ¹⁵ - Software: 208 of 375 (55%) ¹⁵ - Consumer (B2C): 156 of 375 (42%) ¹⁵ - Fintech: significant presence across Enterprise Applications, FinTech verticals ¹⁵ - Digital health: notable concentration ¹⁶

Note: Categories overlap (a B2B SaaS company counts in both Enterprise and Software), so percentages exceed 100%. The dominant pattern is clear: the portfolio skews heavily toward B2B software and SaaS, consistent with their stated bias toward SaaS due to lower capital requirements.

Stage distribution: Overwhelmingly pre-seed, with 134 investments at seed stage with an average round size of $2.69M, 19 follow-on investments at Series A with an average round size of $8.96M ¹⁵. The firm leads rounds and sets terms on initial checks ¹¹.

Geographic distribution: 86 investments in the United States, 15 in Singapore ¹⁵. Foundry Group noted that 61% of the portfolio is based outside the Bay Area, and the fund has operations in both San Francisco and Singapore ³.

Diversity metrics: 38% of portfolio companies have at least one female founder; 17% have at least one Black or LatinX founder ³.

Check size: Initial checks of $25K (early funds) to $150K (current), with the firm’s FAQ listing $150K as the current first check ¹¹¹². Average check across the portfolio is approximately $50K ¹⁷.

Decision speed: The firm responds to founders within 24-48 hours of an initial call ¹¹¹².

Deal volume: Approximately 80-100 investments per year, or 1-2 companies per week ¹³. Of approximately 100 deals reviewed, 8-10 receive interviews and 1-2 receive funding ¹². 15% of portfolio companies come in completely cold (no warm introduction) ¹².

Co-investor patterns: Hustle Fund operates Angel Squad, a community of 2,000+ vetted angels who co-invest alongside the fund with checks as small as $1K ¹¹¹⁹. This creates a distinctive co-investment model where the fund’s own angel community participates in deals.

Notable gaps vs. stated thesis: The firm claims to be generalist within software, but the portfolio shows a clear B2B/enterprise lean (58% enterprise vs. 42% consumer). Digital health is emphasized in stated materials but does not appear to dominate the portfolio relative to SaaS and fintech.

Evaluation framework: Hustle Fund uses a 1-4 scoring system across five criteria. Portfolio averages for funded companies: Team (2.98), Market (2.79), Execution (2.76), Fundraisability (2.48), Product (2.32) ¹⁴. Yin individually scores lower on Product (2.01) and Fundraisability (2.19), confirming her stated willingness to back founders with undeveloped products who lack traditional fundraising polish ¹⁴. The firm uses a “champion model” where individual partners can pursue deals despite disagreement from other partners ¹⁴.

Portfolio

This table represents a sample of verified Hustle Fund investments. With 375+ total investments, this is a partial list focused on notable and verifiable entries.

Portfolio highlights: 3 unicorns (Gamma, Webflow, Boom Supersonic), 1 IPO (NerdWallet, NASDAQ November 2021 at $595M market cap), and 29 acquisitions including Meowtel (acquired by Rover, January 2026) ¹⁵²⁰.

Note: Only 20 of approximately 375 investments are listed here (~5%). Many investments are not individually verifiable through public sources due to the high volume of small pre-seed checks. The firm’s own founders page lists additional companies but without investment dates ¹⁸.

In Their Own Words

“VC is a commodity business. Money is money. My money is the same as anybody else’s money.” — Elizabeth Yin, Mercury interview ¹²

“The founders who are frugal, scrappy, and focused on putting resources on one thing tend to do very well.” — Elizabeth Yin, Hustle Fund blog ²¹

“I used to believe as an investor that the founding team is all that matters. I no longer believe that. An amazing idea matters way more.” — Elizabeth Yin, Hustle Fund blog ²¹

“When I’ve invested in companies in crowded spaces, even with great founders, it’s really hard. If you’re early in the hype cycle, the CAC is low. But if you’re two years too late, it’s just too expensive.” — Elizabeth Yin, Hustle Fund blog ²¹

“Over half the people initially have a touchpoint with us on Twitter. If you wonder why I waste so much time on Twitter, that’s why; we’re doing our own marketing.” — Elizabeth Yin, Mercury interview ¹²

“Manual processes — tracking paperwork, coordinating with auditors, and following up on investment statuses — were holding us back.” — Elizabeth Yin, Process Street case study ²²

“Our company I won’t ever sell, because it’s what I want to work on forever.” — Elizabeth Yin, personal blog ¹⁴

“When I was a founder I was completely clueless about fundraising and what investors would ask me. And also why they were asking certain questions. I don’t think founders should ever be blindsided by the process.” — Elizabeth Yin, Twitter/X ²³

What Founders Say

“As one of my earliest investors, Hustle Fund has proven to be a hugely strategic partner for me and the team! They are the real deal — putting in actual sweat equity to help me with growth, strategy, fundraising, and more.” — Tara Viswanathan, Founder/CEO of Rupa Health, Hustle Fund founders page ¹⁸

“What attracted me to the team initially was their mindset to grow with me throughout the journey from an operator mindset. It’s wonderful to have a partner like Hustle Fund that hustles as hard as the Hemster team.” — Allison Lee, Founder/CEO of Hemster, Hustle Fund founders page ¹⁸

“Wait — who are these people?! Just kidding. :) Hustle Fund has been an awesome partner, being with us during some of the earliest days of Webflow — when it was just the three co-founders!” — Vlad Magdalin, Co-Founder/CEO of Webflow, Hustle Fund founders page ¹⁸

Note: These testimonials are sourced from the Hustle Fund website and therefore represent curated, firm-selected quotes. No independently sourced founder testimonials were found through separate searches of Twitter/X, podcasts, or press coverage.

Sources