Company lists · Data refreshed September 2026

Top 25 Power systems engineering companies based in San Diego, United States

Name: Power systems engineering companies 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 17, 2026 52 companies tracked

RevenueBase identified 52 company matches for power systems engineering companies associated with San Diego, United States as of September 2026 and tracks 2,357 professional contacts across them, including 891 with verified work emails. Across the United States, Houston is the largest hub for this category (188 companies); San Diego has 52.

This list covers company matches for power systems engineering companies associated with San Diego, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

52Companies

2,357Contacts tracked

891Verified emails

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The 25 largest power systems engineering companies based in San Diego, United States

Ranked by team size

Top 25 of 52 company matches for power systems engineering companies based in San Diego, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,560 contacts →
	Exact match “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Dynalectric SAN Diego	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	201-500	228 contacts →
	Exact match “Dynalectric San Diego, a wholly-owned subsidiary of EMCOR Group, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	The Engineering Partners, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “Since 1985, The Engineering Partners Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	4liberty, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	93 contacts →
	Exact match “4Liberty is a leading technical & professional services firm focused on energy & infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	CMD Electric	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	201-500	93 contacts →
	Exact match “With over 20 years experience in industry, CMD Electric has built trust with clients through quality, reliability and results.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Utility Specialists	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “Established in 1976, Utility Specialists provides natural gas, electric, telephone and cable television system design and extension negotiation services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	National Electric Works	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	25 contacts →
	Exact match “National Electric Works (NEW) is a full service Electrical and Telecommunications solutions provider specializing in Utility, Healthcare, Biotech, Military and Commercial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Southland Electric INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	MPE Consulting Mechanical Electrical Plumbing Lighting	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “A consulting electrical engineering firm, MPE Consulting, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Terrapro Solutions	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “TerraPro Solutions is an established energy consulting company providing cutting edge and creative energy solutions for major utility-scale and infrastructure projects throughout…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	ACE Electric, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	10 contacts →
	Exact match “Ace Electric is your trusted electrical contracting partner.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Potential Electrical Design Services	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “Potential Electrical is a licensed C10 Electrical and General A Engineering contractor that specializes in new commercial and industrial electrical and civil construction.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Zicali, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “At Zicali, we’re on a mission to redefine the future of the utilities sector and spearhead the green energy revolution.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	CM Solar Electric INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “We're a family owned and operated organization based here in San Diego county.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Foshay Electric Company INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	5 contacts →
	Exact match “FOSHAY Electric is a family-owned business with more than 105 years of energy generation and energy storage experience.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	City Electric Works, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “City Electric is a commercial electrical contractor serving San Diego County.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Atlas Integrated Systems, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Solved Engineering INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Greenwell Energy, INC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	3 contacts →
	Exact match “Since 2010 GreenWell Energy has helped hundreds of clients meet their sustainability goals by delivering renewable energy projects that create instant value.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Branch Power Solutions	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	2 contacts →
	Exact match “Small business values with large business capabilities in delivering efficient, reliable power solutions tailored to diverse client needs, including standby power systems…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	KSU Engineering	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	51-200	2 contacts →
	Exact match “KSU Engineering is a woman owned engineering consulting firm with experience and expertise in the vast arenas of the electrical engineering world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Acoi,inc	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match “ACOI, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Arrs Technologies LLC	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	2 contacts →
	Exact match “Leaders in High Voltage High Power and Systems Engineering At ARRS we have over 140 years combined professional experience in designing, fabricating, testing, and fielding high…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	5th Avenue Energy	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	11-50	1 contacts →
	Exact match “5th Avenue Energy: 5th Avenue Energy, an electrical contracting firm, established in October 2016 by David Wallace of Temecula, California.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Primal Electric	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “Here at Primal Electric, we pride ourselves on putting Customer Service first!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “power systems engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 52 power systems engineering companies based in San Diego, United States

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Power systems engineering companies based in San Diego, United States at a glance

As of Sep 17, 2026

37.8%Verified-email coverage

45.3Average contacts per company

11-50Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 52 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with San Diego, United States whose business descriptions match “power systems engineering companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 891 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Power systems engineering companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “power systems engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power systems engineering companies are there based in San Diego, United States?

RevenueBase identified 52 company matches for power systems engineering companies associated with San Diego, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Helix Electric tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most power systems engineering companies?

Houston leads the United States with 188 company records, followed by New York (67) and Miami (52). San Diego has 52.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 891 professional contacts with verified work emails tracked across these 52 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 SmartSearch, 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.