/Companies

Fastgen

YC W23

New York City, US · Founded 2023 · 7 employees · 13 known investors

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Fastgen provides a drag-and-drop platform for building custom APIs and data workflows, with an integrated PostgreSQL database that handles data operations for applications.

Also known as Million Sunny, Inc. · Hyrule Technology

Developer ToolsEnterprise SoftwareHealthtechB2BAPINo-codeUnited States of AmericaGermanyAmerica / CanadaEuropePartly Remote

Founders & leadership· Y Combinator alumni (W23)

Fastgen was founded in 2023 by Mike Mahlkow, David Nordhausen, and Constantin Schreiber.

MMMike Mahlkow
Mike MahlkowCo-Founder & CEO2023–2025Mike Mahlkow was CEO at Blair, an income-based student financing company that raised over $100 million, and previously worked at Stripe and Uber. He is now co-founder and CEO of Fastgen.
DNDavid Nordhausen
David NordhausenCo-Founder2023–2025David Nordhausen is co-founder of Fastgen (W23) and previously founded Blair (S19).
CSConstantin Schreiber
Constantin SchreiberCo-FounderConstantin Schreiber dropped out of college to co-found Blair (YC S19), an income-based financing platform for US students that raised over $100 million, where he led engineering for software processing millions of dollars in weekly transactions. He has prior experience in autonomous systems and cryptography.
MC
Michael Chi Kin ChengExecutive
AW
Albert Wing-Kin TamExecutive
PJPaul J. Tauber
Paul J. TauberExecutive
NV
Nancy Vanesa Bayona GaravitoPeople \u0026 Operations

Board

NJ
N.C. Joseph LaiBoard director
AN
Anselm N. LeungBoard director

Investors · 13

Rainfall Ventureslisted by Rainfall VenturesSan Francisco · $100K – $1M

How we know: Rainfall Ventures's portfolio page · funding news · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

Rebel Fundlisted by Rebel FundSan Francisco · $100K – $5M

How we know: funding news · Y Combinator's founder network · rebelfund.vc · Not right? Tell us

468 CapitalreportedBerlin

How we know: the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

BLN CapitalreportedBerlin · $55K – $550K

How we know: Y Combinator's founder network · Not right? Tell us

James Beshara FundreportedVenice

How we know: Y Combinator's founder network · Not right? Tell us

MischiefreportedSan Francisco · $1M – $5M

How we know: Y Combinator's founder network · Not right? Tell us

Orange CollectivereportedDanville

How we know: Y Combinator's founder network · Not right? Tell us

Squad Capitalreported$110K – $550K

How we know: Y Combinator's founder network · Not right? Tell us

WefunderreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Reported raises · per SEC filings

Form D private placements

$1.7M disclosed across 1 round · 2007

▶$1.7MraisedMar 2012 · 9 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • N.C. Joseph LaiDirector
  • Michael Chi Kin ChengExecutive Officer, Director
  • Albert Wing-Kin TamExecutive Officer, Director
  • Paul J. TauberExecutive Officer
  • Anselm N. LeungDirector
Offering amount
$2M
Amount sold
$1.7M
Proceeds to insiders
$519.5K
First sale
Jan 2007
Incorporated
Corporation, California
Federal exemptions
06
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Founder mafia

4 people who came through Fastgen went on to found or lead other companies.

Related companies · 4

Companies working in the same space as Fastgen.

Legal entities · 1

corporate structure
Million Sunny, Inc.

In the news

Frequently asked questions

What does Fastgen do?
Fastgen provides a drag-and-drop platform for building custom APIs and data workflows, with an integrated PostgreSQL database that handles data operations for applications.
Who founded Fastgen?
Fastgen was founded by Mike Mahlkow, David Nordhausen, Constantin Schreiber in 2023.
Who are Fastgen's investors?
Fastgen's investors include Maiora Rebel Ventures, Rainfall Ventures, Rebel Fund, Y Combinator, 468 Capital, Andreessen Horowitz, BLN Capital, James Beshara Fund and 5 more.
How much funding has Fastgen raised?
Fastgen has disclosed $1.7M raised across 1 round.
Where is Fastgen headquartered?
Fastgen is headquartered in New York City, US.