Who invested in Aethon

8 rounds we have observed, with the 6 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.

Advanced Manufacturing

Funding summaryUpdated 26 Oct 2026

$36Mraised across 8 rounds since 2005, from 8 sources

$11MSeries D$888KDebt$6.6MSeries A$2.0MVenture$1.7MVenture$7.0MSeries B$3.1MSeries C$3.4MRound

Latest round: Round, $3.4MOct 2015
Biggest round: $11MSeries D · Nov 2005
Investors: 6

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.

20072009201120132015

$11MSeries D$888KDebt$6.6MSeries A$2.0MVenture$1.7MVenture$7.0MSeries B$3.1MSeries C$3.4MRound

First round: Series D, $11M
Biggest round: $11M
Usual gap between rounds: 9 months

The rounds

Oct 2015
Round$3.4M
No investor was named in the report.
From a historical funding recordSEC filing: $3.4M sold, first sale Sept 2015
Jan 2014
Series C$3.1M1 new
- Mitsui & Co
From a historical funding recordSEC filing: $3.0M sold, first sale Dec 2013
Apr 2012
Series B$7.0M
No investor was named in the report.
Reported by sec.govSEC filing: $7.0M sold, first sale Apr 2012
Jul 2011
Venture$1.7M
No investor was named in the report.
Reported by sec.govSEC filing: $1.7M sold, first sale Jul 2011
Nov 2010
Venture$2.0M
No investor was named in the report.
From a historical funding recordSEC filing: $2.0M sold, first sale Nov 2010
Apr 2010
Series A$6.6M
No investor was named in the report.
Reported by sec.govSEC filing: $6.6M sold, first sale Mar 2010
Dec 2009
Debt$888K
No investor was named in the report.
From a historical funding recordSEC filing: $888K sold, first sale Dec 2009
Nov 2005
Series D$11M5 new
From a historical funding record

Founders and team

From the SEC filings it signed: 2 on the team.

Aldo ZiniExecutive Officer, Directori
Robert ReillyExecutive Officeri

On the board, as filediJan WesterhuesJohn ReardonMark KawaharaMichael StublerSean McDonald

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.

Series D2005Debt2009Series A2010Venture2010Venture2011Series B2012Series C2014Round2015

Pacific Venture GroupSalix Ventures

Everyone who backed them

Trident CapitalVC firm1round

Ascension VenturesCorporate VC1round

Mitsui & CoCorporate VC1round

Draper TriangleVC firm1round

Pacific Venture GroupGrowth equity1round

Salix VenturesGrowth equity1round

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

Also claim to have backed them

These 2 firms list Aethon 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.