Company lists · Data refreshed September 2026

Top 25 Clean energy technology firms based in San Diego, United States

Name: Clean energy technology firms based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 87 companies tracked

RevenueBase identified 87 clean energy technology firms headquartered in San Diego, United States as of September 2026 and tracks 5,179 professional contacts across them, including 1,691 with verified work emails. New York is the largest hub.

This list covers clean energy technology firms headquartered in San Diego, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

87Companies

5,179Contacts tracked

1,691Verified emails

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The 25 largest clean energy technology firms based in San Diego, United States

Ranked by team size

Top 25 of 87 clean energy technology firms based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy technology firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Solv Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,286 contacts →
	Partial evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 16, 2026
2	Greentech Renewables	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	595 contacts →
	Partial evidence “As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.” Source: RevenueBase Database · checked Sep 16, 2026
3	Terra-Gen, LLC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	201-500	264 contacts →
	Indirect evidence “Terra-Gen, LLC is a leading U.S.” Source: RevenueBase Database · checked Sep 16, 2026
4	Powerflex	Strong evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	201-500	254 contacts →
	Strong evidence “PowerFlex is a clean technology solutions company making the transition to carbon-free energy possible through a combination of green offerings, including solar, storage, EV…” Source: RevenueBase Database · checked Sep 16, 2026
5	Avantus	Strong evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	201-500	208 contacts →
	Strong evidence “Avantus develops, owns and operates utility-scale clean energy projects across California and the Desert Southwest.” Source: RevenueBase Database · checked Sep 16, 2026
6	Solartech	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	51-200	81 contacts →
	Indirect evidence “With over 20 years of industry expertise, SolarTech provides cutting-edge solar solutions across California and Arizona.” Source: RevenueBase Database · checked Sep 16, 2026
7	EDF Renewables North America	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	73 contacts →
	Partial evidence “EDF Renewables North America is a market leading independent power producer and service provider with 35+ years of expertise in renewable energy.” Source: RevenueBase Database · checked Sep 16, 2026
8	Stellavise INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	58 contacts →
	Partial evidence “We are proud to be a part of the energy revolution and focus on utility scale solar and battery storage projects.” Source: RevenueBase Database · checked Sep 16, 2026
9	IVY Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	57 contacts →
	Strong evidence “Ivy Energy is at the forefront of the clean energy transformation for multi-tenant real estate, offering a comprehensive suite of onsite energy transaction products and…” Source: RevenueBase Database · checked Sep 16, 2026
10	Kitu Systems, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	43 contacts →
	Indirect evidence “Kitu Systems accelerates consumer adoption of solar, battery storage, and electric vehicle charging by enabling a new generation of interconnection and providing communications…” Source: RevenueBase Database · checked Sep 16, 2026
11	HES Solar	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence “HES Solar is a full-service solar company in San Diego that was established in 2001.” Source: RevenueBase Database · checked Sep 16, 2026
12	Sunline Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	201-500	19 contacts →
	Partial evidence “Headquartered in sunny San Diego, Sunline Energy is a privately-held and family operated solar installer.” Source: RevenueBase Database · checked Sep 16, 2026
13	Veckta	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “VECKTA modernizes and streamlines how companies buy onsite energy systems.” Source: RevenueBase Database · checked Sep 16, 2026
14	BVI Solar	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “BVI Solar is a commercial electrical, roofing, and solar contractor based in San Diego and servicing the entire state of California.” Source: RevenueBase Database · checked Sep 16, 2026
15	Pathway Power LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “Pathway Power is a transformative Independent Power Producer (IPP) focused on harnessing deep data and analytics to drive innovation in renewable energy generation and storage.” Source: RevenueBase Database · checked Sep 16, 2026
16	Terrapro Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “TerraPro Solutions is an established energy consulting company providing cutting edge and creative energy solutions for major utility-scale and infrastructure projects throughout…” Source: RevenueBase Database · checked Sep 16, 2026
17	Mmpv Design Cooperative, Inc.	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “MMPV DESIGN COOPERATIVE is an architecture firm serving to advance solar energy, energy storage and electric vehicle infrastructure projects throughout the Western U.S.” Source: RevenueBase Database · checked Sep 16, 2026
18	Luminia	Strong evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	11 contacts →
	Strong evidence “Founded in 2019 and headquartered in San Diego, Luminia partners with clean electricity providers across California to develop distributed solar and energy storage projects that…” Source: RevenueBase Database · checked Sep 16, 2026
19	Uprise Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “Uprise Energy has developed a unique energy delivery system that breaks the chains of the power grid and is not reliant on fossil fuels; the Uprise Energy – Mobile Power Station…” Source: RevenueBase Database · checked Sep 16, 2026
20	Salka Energy	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Salka Energy is developing the energy of tomorrow.” Source: RevenueBase Database · checked Sep 16, 2026
21	US Green Energy Technologies	Partial evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “We are committed to providing you the most innovative and comprehensive energy management solutions.” Source: RevenueBase Database · checked Sep 16, 2026
22	CM Solar Electric INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “We're a family owned and operated organization based here in San Diego county.” Source: RevenueBase Database · checked Sep 16, 2026
23	Sunterra Solar INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “Sunterra is a premier California solar power contractor with a primary focus on delivering turn-key commercial grid-tied solar power plants.” Source: RevenueBase Database · checked Sep 16, 2026
24	1up Solar	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence “We are not a ‘one-size-fits-all’ solar product, like many generic solar panel installers will try and sell you.” Source: RevenueBase Database · checked Sep 16, 2026
25	YSM Solar & Storage Services	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “YSM provides critical services to solar contractors, equipment manufacturers, and distributors throughout the US.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: clean energy technology firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names clean energy technology firms.
Partial evidence: Its own public description names part of clean energy technology firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean energy technology firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 87 clean energy technology firms based in San Diego, United States

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Clean energy technology firms based in San Diego, United States at a glance

As of Sep 16, 2026

32.7%Verified-email coverage

59.5Average contacts per company

11-50Median size (employees)

167.8%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 87 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among clean energy technology firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in San Diego, United States whose own description of what they do matches “clean energy technology firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names clean energy technology firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among clean energy technology firms, and records with no verified work email. Companies headquartered outside San Diego are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,691 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Clean energy technology firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names clean energy technology firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many clean energy technology firms are there based in San Diego, United States?

RevenueBase identified 87 clean energy technology firms headquartered in San Diego, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Solv Energy, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most clean energy technology firms?

New York leads with 146 headquartered companies, followed by Houston (127) and Austin (91).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,691 verified decision-maker contacts tracked across these 87 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.