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© 2025 SUPERLINEAR PTE. LTD. All rights reserved
Ann Miura-KoAnn Miura-Ko

Ann Miura-Ko

Co-founding Partner / Floodgate

Ann Miura-Ko is the co-founding partner at the seed-stage venture capital firm, Floodgate, where she focuses on pre-seed and seed-stage investments, notably being an early investor in companies like Lyft and Xamarin. Recognized multiple times on the Forbes Midas List and the New York Times Top 20 Venture Capitalists Worldwide, she is known for her technical background, holding a Ph.D. in Math Modeling of Information Security from Stanford. She is also a co-director of the Stanford Mayfield Fellows Program and a founding member of AllRaise, a non-profit dedicated to accelerating the success of female founders and funders.

Ph.D., Stanford
United States
InstagramInstagram4.1K
TwitterTwitter
LinkedInLinkedIn9.5K
Venture CapitalEntrepreneurshipTechnology
16+ years
Years at Floodgate
9.5K
LinkedIn Followers
$300K - $3M
Investment Check Size
#6 (2024)
Forbes Midas Seed List
Search More

Work Experience

FLOODGATEFLOODGATE
FLOODGATE

Co-Founding Partner

May 2008 - Present
Responsibilities
Co-conspirator to preseed and seed stage founders before product market fit. Partners with only 3-5 companies per year (not spray and pray). Leads rounds with check sizes ranging from $300k to 3M. Takes board seats. Lead seed investor and initial board member for companies like Lyft and Xamarin and more recent investments like SmarterDX, TerraDot, Studio and Roo.vet
Stanford UniversityStanford University
Stanford University

Co Director of the Mayfield Fellows Program

Jan 2019 - Present
Responsibilities
Co Director and lecturer of an immersive nine month entrepreneurship and leadership program that trains a diverse cohort of 12 Stanford undergraduate and co-term students to become leaders in tech. Program alumni include Josh Reeves founder of Gusto, Mike Krieger and Kevin Systrom, founders of Instagram.
Yale UniversityYale University
Yale University

Member Board Of Trustees

May 2019 - Jun 2025
Position
Member Board Of Trustees
Charles River VenturesCharles River Ventures
Charles River Ventures

Analyst

Sep 2001 - Jun 2003
Responsibilities
• Sourced deal financed by Ted Dintersmith (Venetica) which subsequently was acquired by IBM in a profitable deal for CRV only one year later • Performed due diligence on, evaluated and filtered business plans • Wrote and revised executive summary and pitches with CEOs of portfolio companies • Presented venture capital industry overview and recommendations for investments strategies to managing partners in new and emerging industries like biotechnology and nanotechnology
McKinsey and CompanyMcKinsey and Company
McKinsey and Company

Senior Business Analyst

Sep 1998 - Aug 2001
Responsibilities
Wireless Internet Expert. Led team members in researching topics and structuring problems. Presented recommendations to senior client management. Studies included: • Wireless Internet strategy for wireless operators − Developed a venture capital arm for a Japanese wireless operator. Led analysis of threats and opportunities for investment within US wireless market landscape − Launched one of the first European wireless internet services for a Spanish wireless operator by identifying key strategic relationships and necessary content. • Strategy for growth for three Wireless Internet start-up companies − Identified priority market segments specifically within US enterprise wireless data market on which to focus to drive revenue growth.

Education

Stanford UniversityStanford University
Stanford University

Ph.D.

2003 - 2010
Field of Study
Ph.D. - Quantitative Modeling of Computer Security
Yale UniversityYale University
Yale University

B.S.

1994 - 1998
Field of Study
B.S. - Electrical Engineering
Palo Alto High SchoolPalo Alto High School
Palo Alto High School
1990 - 1994
Education
N/A

Key Highlights

Venture Capital

Co-founding Partner at Floodgate, a seed-stage VC firm.

Top VC Investor

Repeat member of the Forbes Midas List and New York Times Top 20 Venture Capitalists Worldwide.

Early-Stage Investment

Early investor in companies like Lyft, Xamarin, Okta, TaskRabbit, Twitch, and Twitter.

Entrepreneurship Education

Co-Director of the Stanford Mayfield Fellows Program, teaching entrepreneurship and leadership.

Professional Skills

Ann Miura-Ko is a co-founding partner at Floodgate, specializing in pre-seed and seed-stage investments. She is recognized globally for her high-conviction investment strategy and technical expertise.

Investment & Strategy
Start-upsAngel InvestingVenture CapitalEntrepreneurshipNew Venture Development
Business & Analytics
Business StrategyValuationGo-to-market StrategyQuantitative Analytics

Recent Posts

She was one of the first ever investors in Lyft 🤯incredibly honest and insane amounts of Wisdom fromShe was one of the first ever investors in Lyft 🤯incredibly honest and insane amounts of Wisdom from
She was one of the first ever investors in Lyft 🤯incredibly honest and insane amounts of Wisdom from

She was one of the first ever investors in Lyft 🤯incredibly honest and insane amounts of Wisdom from Ann! This video is sponsored by @willowvoiceai - check them out in my bio if you guys haven't alrea

2025-11-29
12.1K likes
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It’s her birthday. Machan is 79 years old. She still does Zumba every day. She looks great in red. SIt’s her birthday. Machan is 79 years old. She still does Zumba every day. She looks great in red. S
It’s her birthday. Machan is 79 years old. She still does Zumba every day. She looks great in red. S

It’s her birthday. Machan is 79 years old. She still does Zumba every day. She looks great in red. She has solo adventures in Italy. She delivers lunch to Anton almost every day. She makes most of our

2025-09-27
109 likes
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Happy birthday @alko1! You are our leader in all things fun (even putting out fires while walking toHappy birthday @alko1! You are our leader in all things fun (even putting out fires while walking to
Happy birthday @alko1! You are our leader in all things fun (even putting out fires while walking to

Happy birthday @alko1! You are our leader in all things fun (even putting out fires while walking to dinner on vacation is fun!) You are constantly traveling and working and maybe quite stressed but i

2025-09-24
126 likes
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I don’t recommend a race after a full day at Disneyland but Ann helped pull us through.I don’t recommend a race after a full day at Disneyland but Ann helped pull us through.
I don’t recommend a race after a full day at Disneyland but Ann helped pull us through.

I don’t recommend a race after a full day at Disneyland but Ann helped pull us through.

2025-09-07
110 likes
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That time we went to Tokyo Disneyland and my rather stern grandmother agreed to dress up with us as That time we went to Tokyo Disneyland and my rather stern grandmother agreed to dress up with us as
That time we went to Tokyo Disneyland and my rather stern grandmother agreed to dress up with us as

That time we went to Tokyo Disneyland and my rather stern grandmother agreed to dress up with us as pirates

2025-08-10
69 likes
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We have another driver!!! I’m looking forward to road trips riding shotgun with this guy.We have another driver!!! I’m looking forward to road trips riding shotgun with this guy.
We have another driver!!! I’m looking forward to road trips riding shotgun with this guy.

We have another driver!!! I’m looking forward to road trips riding shotgun with this guy.

2025-07-22
76 likes
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🇭🇷 Croatia - we will be back!🇭🇷 Croatia - we will be back!
🇭🇷 Croatia - we will be back!

🇭🇷 Croatia - we will be back!

2025-07-15
126 likes
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☀️🛥️☀️🛥️
☀️🛥️

☀️🛥️

2025-07-14
55 likes
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Instagram Post

2025-07-12
27 likes
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