Who invested in Ambiq Micro

11 rounds we have observed, with the 13 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AIManufacturing

Raised 5 months ago

Funding summaryUpdated 26 Oct 2026

$244Mraised across 11 rounds since 2010, from 11 sources

$250KSeed$2.4MSeed$694KDebt$1.1MVenture$3.6MSeries B$3.2MVenture$10MSeries B$16MSeries C$90KRound$28MSeries E$179MRound

Latest round: Round, $179MJun 2026
Step-upi: 6.4×
Investors: 13

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

201020132016201920222025

$250KSeed$2.4MSeed$694KDebt$1.1MVenture$10MSeries B$16MSeries C$90KRound$28MSeries E$179MRound

First round: Seed, $250K
Biggest round: $179M
Usual gap between rounds: 8 months

The rounds

Jun 2026
Round$179M2 new
- Kleiner Perkins
- Taiwania Capital
Source recorded
Nov 2018
Series E$28M1 new
- EDBI
Reported by DealStreetAsiaSEC filing: $29M sold, first sale May 2018
May 2015
Round$90K
No investor was named in the report.
From a historical funding recordSEC filing: $90K sold, first sale May 2015
Nov 2014
Series C$16M3 new3 returning
From a historical funding recordSEC filing: $16M sold, first sale Nov 2014
Aug 2013
Series B$10M2 new3 returning
Reported by finsmes.comSEC filing: $10M sold, first sale Aug 2013
Jul 2013
Venture$3.2M
No investor was named in the report.
Reported by sec.govSEC filing: $3.2M sold, first sale Jun 2013
Nov 2012
Series B$3.6M2 returning
- DFJ
- Mercury Fund
Reported by bizjournals.comSEC filing: $3.7M sold, first sale Oct 2012
Jul 2012
Venture$1.1M
No investor was named in the report.
Reported by sec.govSEC filing: $1.1M sold, first sale Jul 2012
Feb 2012
Debt$694K
No investor was named in the report.
Reported by sec.govSEC filing: $694K sold, first sale Feb 2012
Nov 2010
Seed$2.4M2 new
- Mercury Fund
- Huron River Ventures
Reported by fis.dowjones.comSEC filing: $1.2M sold, first sale Oct 2010
Jul 2010
Seed$250K3 new
Reported by gcase.orgSEC filing: $50K sold, first sale Aug 2010

Founders and team

From Ambiq Micro's own website: 1 founder, 7 on the team.

Scott HansonFounder, CTO

Fumihide EsakaCEO
Sean ChenPresident
Jeff WinzelerCFO
Dan CermakVP of Corporate Strategy
Dr. Kris PotrafkaVP of Human Resources
Jayesh ShahVP of Software & Solutions
Paula FloydVP of Finance

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Venture2012Series B2012Venture2013Series B2013Series C2014Round2015Series E2018Round2026

Mercury FundJohn Ives

DFJ

Austin Ventures

Huron River Ventures

Kleiner Perkins Caufield & Byers

Kleiner PerkinsDraper Fisher Jurvetson (DFJ)Cisco

EDBI

Everyone who backed them

Mercury FundVC firm4rounds

John IvesAngel3rounds

DFJVC firm2rounds

Austin VenturesVC firm2rounds

Huron River VenturesVC firm2rounds

Kleiner Perkins Caufield & ByersVC firm1round

Kleiner PerkinsVC firm1round

Draper Fisher Jurvetson (DFJ)Investment firm1round

CiscoCorporate VC1round

EDBIVC firm1round

Taiwania CapitalGrowth equity1round

KPCB HoldingsInvestment firm1round

Arm HoldingsGrowth equity1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 3 firms list Ambiq Micro as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.