Fundraising Fox

Lygos

YC W16

San Francisco, US · Delaware corporation · 55 employees · 8 known investors

lygos.com

Lygos uses genetically engineered microorganisms to produce industrial chemicals from sugar feedstocks, focusing on compounds where fermentation offers cost advantages compared to fossil fuel-based manufacturing.

Climate TechHealthtechSynthetic BiologyClimateBiotechnologyUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W16)

ESEric Steen
Eric SteeninCEO & Co-founder
JA
Jeffrey A. DietrichCo-founder
JD
Jay D. KeaslingNamed on SEC filing

Board

LK
Leonard KatzBoard director

Investors · 8

Reported raises · per SEC filings

Form D private placements

$41.7M disclosed across 4 rounds · 2016–2018

$10.9MraisedApr 2019 · 8 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Eric SteenExecutive Officer, Director
  • Jay KeaslingDirector
  • Brad GillespieDirector
  • Jeffrey DietrichExecutive Officer
Offering amount
$15M
Amount sold
$10.9M
First sale
Nov 2018
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$15.5MraisedApr 2019 · 31 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Eric SteenExecutive Officer, Director
  • Jay KeaslingDirector
  • Jeffrey DietrichExecutive Officer
  • Brad GillespieDirector
Offering amount
$20M
Amount sold
$15.5M
First sale
Mar 2018
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$14.1MraisedJul 2017 · 35 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Eric SteenExecutive Officer, Director
  • Jeffrey DietrichExecutive Officer
  • Brad GillespieDirector
  • Jay KeaslingDirector
Offering amount
$14.1M
Amount sold
$14.1M
First sale
Oct 2016
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$1.2MraisedFeb 2016 · 13 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Eric SteenExecutive Officer, Director
  • Jay D. KeaslingDirector
  • Jeffrey A. DietrichExecutive Officer, Director
  • Leonard KatzDirector
Offering amount
$2.9M
Amount sold
$1.2M
First sale
Jan 2016
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Non-dilutive funding · 11 SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
Department of EnergyPhase I2018$150K
Department of Agriculture (USDA)Phase I2018$100K
National Science FoundationPhase II2015$750K
Department of Agriculture (USDA)Phase I2015$100K
Department of EnergyPhase II2014$1M
Department of Agriculture (USDA)Phase II2014$450K
National Science FoundationPhase I2014$150K
Department of Agriculture (USDA)Phase I2014$100K
Department of Agriculture (USDA)Phase I2013$100K
Department of EnergyPhase II2012$988.2K
Department of EnergyPhase I2011$150K

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

In the news

Frequently asked questions

What does Lygos do?
Lygos uses genetically engineered microorganisms to produce industrial chemicals from sugar feedstocks, focusing on compounds where fermentation offers cost advantages compared to fossil fuel-based manufacturing.
Who founded Lygos?
Lygos was founded by Eric Steen, Jeffrey A. Dietrich.
Who are Lygos's investors?
Lygos's investors include Fifty Years, FundersClub, LG Technology Ventures, Y Combinator, 10x Founders, First Round Capital, IA Ventures, OS Fund.
How much funding has Lygos raised?
Lygos has disclosed $41.7M raised across 4 rounds.
Where is Lygos headquartered?
Lygos is headquartered in San Francisco, US.