David Chaiken

Active Investor

Operating Partner at Act One Ventures

Menlo Park, California

David Chaiken, Operating Partner at Act One Ventures is an active investor based in Menlo Park, California. This profile covers what David Chaiken backs, at which stage, and how founders can reach out in 2026.

David Chaiken is an Operating Partner at Act One Ventures, an early-stage venture capital firm investing in ecommerce infrastructure, vertical SaaS, and fintech.

David Chaiken invests in E-commerce & D2C, SaaS & Enterprise and Fintech, typically at Pre Seed and Seed.

Location
Menlo Park, California
Typical check
$150K

What does David Chaiken invest in?

Investor type
VC
Invests in
E-commerce & D2CSaaS & EnterpriseFintech

Where is David Chaiken based?

David Chaiken is based in Menlo Park, California.

Browse more startup investors near David Chaiken:
Startup investors in CaliforniaStartup investors in the United States

How to reach David Chaiken

Angels and operators like David Chaiken reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.

Reach active investors like this one

Get investor contacts

About this profile

This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.

Cite this page

Round Funded. "David Chaiken." Round Funded investor database, updated September 22, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/david-chaiken

Frequently Asked Questions

Who is David Chaiken?

David Chaiken, Operating Partner at Act One Ventures is an active investor based in Menlo Park, California. David Chaiken invests in E-commerce & D2C, SaaS & Enterprise and Fintech, typically at Pre Seed and Seed.

What does David Chaiken invest in?

David Chaiken invests in E-commerce & D2C, SaaS & Enterprise and Fintech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.

What stage does David Chaiken invest at?

David Chaiken typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.

What is David Chaiken's typical check size?

David Chaiken typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.

Where is David Chaiken based?

David Chaiken is based in Menlo Park, California.

How do founders reach investors like this?

Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.

Investor lists that match David Chaiken's profile

Lists of investors with the same location, stage, sector or investor type as David Chaiken.

Similar investors to David Chaiken

Investors who share David Chaiken's portfolio companies, firm, city or investment focus.