Who invested in 1366 Technologies

10 rounds we have observed, with the 11 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.

ManufacturingSemiconductors

Funding summaryUpdated 26 Oct 2026

$89Mraised across 10 rounds since 2008, from 10 sources

$12MSeries A$5.2MSeries A$20MSeries B$6.0MSeries B$2.4MSeries B$3.0MGrant$15MSeries C$2.5MSeries C$5.0MSeries C$18MSeries E

Latest round: Series E, $18MDec 2019
Biggest round: $20MSeries B · Oct 2010
Step-upi: 3.6×
Investors: 11

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.

200820102012201420162018

$12MSeries A$5.2MSeries A$20MSeries B$15MSeries C$2.5MSeries C$5.0MSeries C$18MSeries E

First round: Series A, $12M
Biggest round: $20M
Usual gap between rounds: 16 months

The rounds

Dec 2019
Series E$18M1 new
- Breakthrough Energy
Reported by 1366techSEC filing: $18M sold, first sale Dec 2019
Apr 2015
Series C$5.0M1 new
- Haiyin Capital
From a historical funding recordSEC filing: $2.0M sold, first sale Mar 2015
Dec 2013
Series C$2.5M1 new
- Vorndran Mannheims Capital
From a historical funding recordSEC filing: $15M sold, first sale Sept 2013
Oct 2013
Series C$15M3 new2 returning
Reported by finsmes.comSEC filing: $15M sold, first sale Sept 2013
Feb 2011
Grant$3.0M1 new
- US Department of Energy
Reported by masshightech.comSEC filing: $28M sold, first sale Oct 2010
Jan 2011
Series B$2.4M
No investor was named in the report.
Reported by masshightech.comSEC filing: $28M sold, first sale Oct 2010
Dec 2010
Series B$6.0M3 returning
Reported by masshightech.comSEC filing: $26M sold, first sale Oct 2010
Oct 2010
Series B$20M2 new2 returning
Reported by masshightech.comSEC filing: $20M sold, first sale Oct 2010
Feb 2010
Series A$5.2M2 returning
- Polaris Partners
- North Bridge Venture Partners & Growth Equity
Reported by earth2tech.comSEC filing: $5.2M sold, first sale Jan 2010
Mar 2008
Series A$12M2 new
- Polaris Partners
- North Bridge Venture Partners & Growth Equity
Reported by masshightech.com

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 B2010Series B2010Series B2011Grant2011Series C2013Series C2013Series C2015Series E2019

Polaris Partners

North Bridge Venture Partners & Growth EquityVENTIZZ Capital Partners

US Department of Energy

VantagePoint Capital Partners

Breakthrough EnergyEnergy Technology Ventures

Haiyin Capital

Hanwha Chemical Corporation

Tokuyama

Everyone who backed them

Polaris PartnersVC firm5rounds

North Bridge Venture Partners & Growth EquityVC firm5rounds

VENTIZZ Capital PartnersInvestment firm2rounds

US Department of EnergyGovernment1round

VantagePoint Capital PartnersVC firm1round

Breakthrough EnergyVC firm1round

Energy Technology VenturesCorporate VC1round

Haiyin CapitalVC firm1round

Hanwha Chemical CorporationCorporate VC1round

TokuyamaCorporate VC1round

Vorndran Mannheims CapitalPrivate equity1round

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

Quick answers about 1366 Technologies

Who invested in 1366 Technologies?

1366 Technologies's investors include Polaris Partners, North Bridge Venture Partners & Growth Equity, VENTIZZ Capital Partners, US Department of Energy and VantagePoint Capital Partners, and 6 more on record.