Company lists · Data refreshed September 2026
Top 25 Energy consulting firms based in the United States
RevenueBase identified 3,927 company matches for energy consulting firms associated with the United States as of September 2026 and tracks 74,853 professional contacts across them, including 33,265 with verified work emails and 33,416 with mobile numbers. Houston is the largest hub.
This list covers company matches for energy consulting firms associated with the 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 2, 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.
The 25 largest energy consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,145 contacts → | ||||
Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 2 | 2,712 contacts → | ||||
Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 3 | 2,198 contacts → | ||||
Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 4 | 2,136 contacts → | ||||
Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 5 | 1,631 contacts → | ||||
Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 6 | 1,618 contacts → | ||||
Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 7 | 1,475 contacts → | ||||
Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 8 | 1,348 contacts → | ||||
Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 9 | 1,098 contacts → | ||||
Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 10 | 838 contacts → | ||||
Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 11 | 724 contacts → | ||||
Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 12 | 711 contacts → | ||||
Exact match “For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 13 | 682 contacts → | ||||
Exact match “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 14 | 580 contacts → | ||||
Exact match “Since 1991, Applied Consultants Inc.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 15 | 505 contacts → | ||||
Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 16 | 499 contacts → | ||||
Exact match “HGA is a leading engineering, consulting, and program management company that has been delivering innovative and sustainable solutions to our clients for over 29 years.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 17 | 451 contacts → | ||||
Exact match “SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 18 | 360 contacts → | ||||
Exact match “TAKKION is Moving Energy Forward.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 19 | 274 contacts → | ||||
Exact match “People.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 20 | 252 contacts → | ||||
Exact match “Direct Energy Business is part of a leading energy and energy-related services provider that is focused on helping customers make their businesses better.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 21 | 201 contacts → | ||||
Exact match “Nuverra Environmental Solutions is a company dedicated to the protection, enhancement and advancement of environmental solutions.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 22 | 160 contacts → | ||||
Exact match “Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 23 | 139 contacts → | ||||
Exact match “Morrison, an energy service company, delivers infrastructure projects to clients in the oil and gas and renewables industries.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 24 | 130 contacts → | ||||
Exact match “ABB has finalized the acquisition of SEAM Group, a US-based provider of energized asset management and advisory services to clients across industrial and commercial building…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase | |||||
| 25 | 124 contacts → | ||||
Exact match “Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded in the RevenueBase company graph · Sep 2, 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 “energy consulting firms”. 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 3,927 energy consulting firms based in the United States
See the full list, filter by size, metro and specialty, and access 33,265 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Energy consulting firms based in the United States at a glance
As of Sep 2, 2026Companies by employee count
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 the United States whose business descriptions match “energy consulting firms” 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 33,265 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 2, 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.
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 “energy consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy consulting firms are there based in the United States?
RevenueBase identified 3,927 company matches for energy consulting firms associated with the 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?
Sargent & Lundy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy consulting firms?
Houston leads with 221 company records, followed by New York (127) and Denver (65).
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 33,265 professional contacts with verified work emails tracked across these 3,927 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 2, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,927 energy consulting firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Energy consulting firms by geography
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom
- Energy consulting firms based in Canada
- Energy consulting firms based in the Netherlands
- Energy consulting firms based in Australia
- Energy consulting firms based in Switzerland
- Energy consulting firms based in Mexico
- Energy consulting firms based in Poland
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom
Company intelligence · public preview
Top 25 energy consulting firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,927 matching company records for energy consulting firms based in the United States, with 74,853 tracked contacts and 33,265 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 2, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy consulting firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Sargent & Lundysargentlundy.comHQ: HQ not recorded; location: Midland, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Midland, TX, United States | 1,001-5,000 | Exact match | 4,145 contacts → |
“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  FTIfaithtechinc.comHQ: HQ not recorded; location: Menasha, WI, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Menasha, WI, United States | 1,001-5,000 | Exact match | 2,712 contacts → |
“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Mckinstrymckinstry.comHQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 2,198 contacts → |
“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: HQ not recorded; location: El Segundo, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: El Segundo, CA, United States | 1,001-5,000 | Exact match | 2,136 contacts → |
“Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Westwood Professional Serviceswestwoodps.comHQ: HQ not recorded; location: Lake Charles, LA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Lake Charles, LA, United States | 1,001-5,000 | Exact match | 1,631 contacts → |
“At Westwood, our purpose is to create a better world for people through our work.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Swca Environmental Consultantsswca.comHQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Phoenix, AZ, United States | 1,001-5,000 | Exact match | 1,618 contacts → |
“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Amerescoameresco.comHQ: HQ not recorded; location: Framingham, MA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Framingham, MA, United States | 1,001-5,000 | Exact match | 1,475 contacts → |
“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Partner Engineering & Science, INCpartneresi.comHQ: HQ not recorded; location: Pasadena, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Pasadena, CA, United States | 1,001-5,000 | Exact match | 1,348 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Barr Engineering CObarr.comHQ: HQ not recorded; location: Washington, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Washington, United States | 1,001-5,000 | Exact match | 1,098 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Willdanwilldan.comHQ: HQ not recorded; location: Anaheim, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Anaheim, CA, United States | 1,001-5,000 | Exact match | 838 contacts → |
“Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Resource Innovationsresource-innovations.comHQ: HQ not recorded; location: Chandler, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Chandler, AZ, United States | 501-1,000 | Exact match | 724 contacts → |
“Resource Innovations (RI) is an energy transformation firm.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Capco Energycapco.comHQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Houston, TX, United States | 1,001-5,000 | Exact match | 711 contacts → |
“For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Inercoinerco.comHQ: HQ not recorded; location: Delaware, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Delaware, United States | 1,001-5,000 | Exact match | 682 contacts → |
“INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Applied Consultantsappliedconsultants.comHQ: HQ not recorded; location: Longview, TX, United StatesReported employees: 501-1,000 | HQ not recorded; location: Longview, TX, United States | 501-1,000 | Exact match | 580 contacts → |
“Since 1991, Applied Consultants Inc.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Natural Powernaturalpower.comHQ: HQ not recorded; location: Seattle, WA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Seattle, WA, United States | 501-1,000 | Exact match | 505 contacts → |
“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Hunt Guillot & Associates HGAhga-llc.comHQ: HQ not recorded; location: Ruston, LA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Ruston, LA, United States | 501-1,000 | Exact match | 499 contacts → |
“HGA is a leading engineering, consulting, and program management company that has been delivering innovative and sustainable solutions to our clients for over 29 years.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Sitelogiqsitelogiq.comHQ: HQ not recorded; location: Minneapolis, MN, United StatesReported employees: 501-1,000 | HQ not recorded; location: Minneapolis, MN, United States | 501-1,000 | Exact match | 451 contacts → |
“SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Takkiontakkion.comHQ: HQ not recorded; location: Evansville, WY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Evansville, WY, United States | 1,001-5,000 | Exact match | 360 contacts → |
“TAKKION is Moving Energy Forward.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Meraki Solarmerakisolar.comHQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 274 contacts → |
“People.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Direct Energy Businessdirectenergy.comHQ: HQ not recorded; location: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 252 contacts → |
“Direct Energy Business is part of a leading energy and energy-related services provider that is focused on helping customers make their businesses better.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Nuverra Environmental Solutionsnuverra.comHQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Scottsdale, AZ, United States | 501-1,000 | Exact match | 201 contacts → |
“Nuverra Environmental Solutions is a company dedicated to the protection, enhancement and advancement of environmental solutions.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Power Grid Engineering, LLCqualuscorp.comHQ: HQ not recorded; location: Lake Mary, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Lake Mary, FL, United States | 1,001-5,000 | Exact match | 160 contacts → |
“Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Morrison Energymorrisonenergy.comHQ: HQ not recorded; location: Houma, LA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Houma, LA, United States | 501-1,000 | Exact match | 139 contacts → |
“Morrison, an energy service company, delivers infrastructure projects to clients in the oil and gas and renewables industries.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Seam Groupabb.comHQ: HQ not recorded; location: Beachwood, OH, United StatesReported employees: 10001+ | HQ not recorded; location: Beachwood, OH, United States | 10001+ | Exact match | 130 contacts → |
“ABB has finalized the acquisition of SEAM Group, a US-based provider of energized asset management and advisory services to clients across industrial and commercial building…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Synergy Companiessynergycompanies.comHQ: HQ not recorded; location: Fresno, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Fresno, CA, United States | 501-1,000 | Exact match | 124 contacts → |
“Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,927 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Energy consulting firms: dataset insights
September 2, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
3,911 records in the displayed employee bands.
16 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 2, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy consulting firms did RevenueBase find based in the United States?
The saved snapshot records 3,927 matching company records, 74,853 tracked contacts and 33,265 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 2, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy consulting firms by geography
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom
- Energy consulting firms based in Canada
- Energy consulting firms based in the Netherlands
- Energy consulting firms based in Australia
- Energy consulting firms based in Switzerland
- Energy consulting firms based in Mexico
- Energy consulting firms based in Poland
Cite this list
RevenueBase Data Team. Top 25 energy consulting firms based in the United States. Snapshot: September 2, 2026. https://revenuebase.ai/companies/energy-consulting-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom
Company intelligence · public preview
Top 25 energy consulting firms based in the United States
RevenueBase records 3,927 matching company records for energy consulting firms based in the United States, with 74,853 tracked contacts and 33,265 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 2, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy consulting firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Sargent & Lundysargentlundy.com HQ: HQ not recorded; location: Midland, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Midland, TX, United States | 1,001-5,000 | Exact match | 4,145 contacts → |
“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | FTIfaithtechinc.com HQ: HQ not recorded; location: Menasha, WI, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Menasha, WI, United States | 1,001-5,000 | Exact match | 2,712 contacts → |
“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Mckinstrymckinstry.com HQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 2,198 contacts → |
“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: HQ not recorded; location: El Segundo, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: El Segundo, CA, United States | 1,001-5,000 | Exact match | 2,136 contacts → |
“Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Westwood Professional Serviceswestwoodps.com HQ: HQ not recorded; location: Lake Charles, LA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Lake Charles, LA, United States | 1,001-5,000 | Exact match | 1,631 contacts → |
“At Westwood, our purpose is to create a better world for people through our work.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Swca Environmental Consultantsswca.com HQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Phoenix, AZ, United States | 1,001-5,000 | Exact match | 1,618 contacts → |
“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Amerescoameresco.com HQ: HQ not recorded; location: Framingham, MA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Framingham, MA, United States | 1,001-5,000 | Exact match | 1,475 contacts → |
“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Partner Engineering & Science, INCpartneresi.com HQ: HQ not recorded; location: Pasadena, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Pasadena, CA, United States | 1,001-5,000 | Exact match | 1,348 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Barr Engineering CObarr.com HQ: HQ not recorded; location: Washington, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Washington, United States | 1,001-5,000 | Exact match | 1,098 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Willdanwilldan.com HQ: HQ not recorded; location: Anaheim, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Anaheim, CA, United States | 1,001-5,000 | Exact match | 838 contacts → |
“Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Resource Innovationsresource-innovations.com HQ: HQ not recorded; location: Chandler, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Chandler, AZ, United States | 501-1,000 | Exact match | 724 contacts → |
“Resource Innovations (RI) is an energy transformation firm.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Capco Energycapco.com HQ: HQ not recorded; location: Houston, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Houston, TX, United States | 1,001-5,000 | Exact match | 711 contacts → |
“For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inercoinerco.com HQ: HQ not recorded; location: Delaware, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Delaware, United States | 1,001-5,000 | Exact match | 682 contacts → |
“INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Applied Consultantsappliedconsultants.com HQ: HQ not recorded; location: Longview, TX, United StatesReported employees: 501-1,000 | HQ not recorded; location: Longview, TX, United States | 501-1,000 | Exact match | 580 contacts → |
“Since 1991, Applied Consultants Inc.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Natural Powernaturalpower.com HQ: HQ not recorded; location: Seattle, WA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Seattle, WA, United States | 501-1,000 | Exact match | 505 contacts → |
“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Hunt Guillot & Associates HGAhga-llc.com HQ: HQ not recorded; location: Ruston, LA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Ruston, LA, United States | 501-1,000 | Exact match | 499 contacts → |
“HGA is a leading engineering, consulting, and program management company that has been delivering innovative and sustainable solutions to our clients for over 29 years.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sitelogiqsitelogiq.com HQ: HQ not recorded; location: Minneapolis, MN, United StatesReported employees: 501-1,000 | HQ not recorded; location: Minneapolis, MN, United States | 501-1,000 | Exact match | 451 contacts → |
“SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Takkiontakkion.com HQ: HQ not recorded; location: Evansville, WY, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Evansville, WY, United States | 1,001-5,000 | Exact match | 360 contacts → |
“TAKKION is Moving Energy Forward.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Meraki Solarmerakisolar.com HQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 274 contacts → |
“People.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Direct Energy Businessdirectenergy.com HQ: HQ not recorded; location: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 252 contacts → |
“Direct Energy Business is part of a leading energy and energy-related services provider that is focused on helping customers make their businesses better.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Nuverra Environmental Solutionsnuverra.com HQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Scottsdale, AZ, United States | 501-1,000 | Exact match | 201 contacts → |
“Nuverra Environmental Solutions is a company dedicated to the protection, enhancement and advancement of environmental solutions.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Power Grid Engineering, LLCqualuscorp.com HQ: HQ not recorded; location: Lake Mary, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Lake Mary, FL, United States | 1,001-5,000 | Exact match | 160 contacts → |
“Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Morrison Energymorrisonenergy.com HQ: HQ not recorded; location: Houma, LA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Houma, LA, United States | 501-1,000 | Exact match | 139 contacts → |
“Morrison, an energy service company, delivers infrastructure projects to clients in the oil and gas and renewables industries.” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Seam Groupabb.com HQ: HQ not recorded; location: Beachwood, OH, United StatesReported employees: 10001+ | HQ not recorded; location: Beachwood, OH, United States | 10001+ | Exact match | 130 contacts → |
“ABB has finalized the acquisition of SEAM Group, a US-based provider of energized asset management and advisory services to clients across industrial and commercial building…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Synergy Companiessynergycompanies.com HQ: HQ not recorded; location: Fresno, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: Fresno, CA, United States | 501-1,000 | Exact match | 124 contacts → |
“Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded description excerpt · September 2, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,927 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Energy consulting firms: dataset insights
September 2, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
3,911 records in the displayed employee bands.
16 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 2, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy consulting firms did RevenueBase find based in the United States?
The saved snapshot records 3,927 matching company records, 74,853 tracked contacts and 33,265 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 2, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy consulting firms by geography
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom
- Energy consulting firms based in Canada
- Energy consulting firms based in the Netherlands
- Energy consulting firms based in Australia
- Energy consulting firms based in Switzerland
- Energy consulting firms based in Mexico
- Energy consulting firms based in Poland
Cite this list
RevenueBase Data Team. Top 25 energy consulting firms based in the United States. Snapshot: September 2, 2026. https://revenuebase.ai/companies/energy-consulting-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy consulting firms based in France
- Energy consulting firms based in Spain
- Energy consulting firms based in Germany
- Energy consulting firms based in Brazil
- Energy consulting firms based in Italy
- Energy consulting firms based in the United Kingdom