When was eSolar founded?

eSolar was founded in 2007 and raised its 1st funding round 1 year after it was founded.

Where is eSolar located?

eSolar is headquartered in Pasadena, United States.

How many employees does eSolar have?

As of Mar 01, 2026, the latest employee count at eSolar is 10 - 49.

Is eSolar a funded company?

eSolar is a funded company, having raised a total of $240M across 7 funding rounds to date. The company's 1st funding round was a $***** Grant (prize money) round, raised on Jan 17, 2008.

When was the latest funding round of eSolar?

eSolar's latest funding was a $***** Series C round on Sep 17, 2013, with participation from 1 investor. Its primary sector is Solar Energy. In United States, the Solar Energy sector has seen $3.81B in funding in 2026 to date.

Where does eSolar rank among its competitors?

eSolar ranks 10th amongst 342 active competitors, of which 27 are funded. It stands 2nd in terms of total funding among its competitors. The most recent competitor to raise funding was Heliogen, which secured $13.9M in Jun, 2025.

Who are the top competitors of eSolar?

eSolar's top competitors include Avaada Group, Abengoa and Heliogen. Among them, Heliogen secured the most recent funding round in June, 2025.

eSolar - 2026 Company Profile, Team, Funding & Competitors

Company Details

eSolar develops solar thermal power plant with a capacity from 46 MW to over 500 MW. eSolar systems provide competitive energy prices and constructs CSP (Concentrated Solar Power) plants using a tiered delivery model. The power plants are structured on a 46 MW base unit, called a “power module.”

Website: esolar.com
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Key Metrics

Founded Year

2007

Location

Pasadena, United States

Stage

Deadpooled

Total Funding

$240M in 7 rounds

Latest Funding Round

Series C, Sep 17, 2013, $*****

Investors

Oak Investment Partners & 5 more

Ranked

10^th among 342 active competitors

Employee Count

10 - 49 as on Mar 01, 2026

Similar Companies

Avaada Group & 286 more

View eSolar's full profile

eSolar is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
eSolar LLC CIN: 02-0796258 , United States, Active	Dec 31, 2006	-	-	-

eSolar has raised a total funding of $240M over 7 rounds. Its first funding round was on Jan 17, 2008. Its latest funding round was a Series C round on Sep 17, 2013 for $*****. 1 investor participated in its latest round. eSolar has 6 institutional investors.

Here is the list of recent funding rounds of eSolar:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 17, 2013	8130817	Series C	3669659	9705458	1045378	6708378
Mar 26, 2013	5176965	Series C	6055562	1151314	9187054	4236877
Sep 22, 2010	8293402	Grant (prize money)	8211778	2883324	8152099	OSTI

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View details of eSolar's funding rounds and investors

The founders of eSolar is Bill Gross.

Here are the details of eSolar's key team members:

Bill Gross: Chairman & Founder of eSolar and founder of 9 other companies, including Intranets, Zowdow and Quickly. They serve on the boards of 2 companies.

View details of eSolar's Founder profiles and Board Members

eSolar's employee count trend

eSolar has 10 - 49 employees as of Mar 26. Here is eSolar's employee count trend over the years:

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Top competitors of eSolar include Avaada Group, Abengoa and Heliogen. Here is the list of Top 10 competitors of eSolar, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Avaada Group 2009, Mumbai (India), Series A	Renewable energy company specializing in solar, wind, green fuels, and energy storage solutions	$879M	GPSC, Brookfield Asset Management & 9 others	66/100
2nd	Abengoa 1941, Seville (Spain), Public	Provider of energy and water & waste management services	-	EIG Global Energy Partners, First Reserve ... & 4 others	65/100
3rd	Heliogen 2013, Pasadena (United States), Acquired	Producer of hydrogen and syngas using sunlight	$111M	Prime Movers Lab, ArcelorMittal & 24 others	56/100
4th	Absolicon Solar Concentrator 2007, Harnosand (Sweden), Seed	Manufactures solar concentrator	$1.33M	Europa, Investa & 2 others	47/100
5th	Ausra 2000, Mountain View (United States), Acquired	Solar energy technologies	$126M	Azimuth Capital Management, Generation Investment Management ... & 4 others	43/100
6th	TVP Solar 2008, Geneva (Switzerland), Series B	Manufactures high temperature to low temperature solar thermal products	$19M	Agility, Europa & 1 others	43/100
7th	Hyperlight Energy 2007, San Diego (United States), Series A	Solar fresnel and CSP technology developer	$2.02M	California Energy Commission, EvoNexus & 1 others	41/100
8th	Space Solar 2022, Didcot (United Kingdom), Seed	Developer of space-based solar power technology for clean energy generation	$508K	Plug and Play Tech Center	41/100
9th	Aalborg CSP 1987, Aalborg (Denmark), Funding Raised	Industrial solar heating solutions developer	-	Europa	41/100
10th	eSolar 2007, Pasadena (United States), Deadpooled	Constructs solar thermal power plant	$240M	NRG Energy, Oak Investment Partners & 4 others	40/100