David Siemer
CEO at Siemer Ventures
Santa Monica, California
David Siemer, CEO at Siemer Ventures is an active investor based in Santa Monica, California. This profile covers what David Siemer backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCMicro VCFounderHedge FundInvestor
- Stages
- Seed
- Invests in
- SaaS & EnterpriseFintechMedia & ContentGaming & EntertainmentCybersecurityHardware & Deep Tech
- Location
- Santa Monica, California
- Typical check
- $250K
- Past investments
- 23
Notable investments
PraizedCriptonite Asset Management
Xyleme
MarketfishGroupsitecomVatorTV
XCast Labs
TellyCloudTrigger
Morphlabs
PhunwareHow to reach David Siemer
Angels and operators like David Siemer 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
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 Siemer." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/david-siemer
Frequently Asked Questions
What does David Siemer invest in?
David Siemer invests in SaaS & Enterprise, Fintech, Media & Content and Gaming & Entertainment, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does David Siemer invest at?
David Siemer typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is David Siemer's typical check size?
David Siemer typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
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.