Company lists · Data refreshed September 2026
Top 25 Geothermal consultants based in the United States
RevenueBase identified 3,831 company matches for geothermal consultants associated with the United States as of September 2026 and tracks 75,828 professional contacts across them, including 35,143 with verified work emails. Houston is the largest hub.
This list covers company matches for geothermal consultants 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 20, 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 geothermal consultants based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,113 contacts → | ||||
Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 2,210 contacts → | ||||
Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 2,177 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 20, 2026 · View company records in RevenueBase | |||||
| 4 | 1,358 contacts → | ||||
Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 1,281 contacts → | ||||
Exact match “With over five decades of experience, Ormat Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 1,231 contacts → | ||||
Exact match “Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 1,088 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 20, 2026 · View company records in RevenueBase | |||||
| 8 | 880 contacts → | ||||
Exact match “Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 851 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 20, 2026 · View company records in RevenueBase | |||||
| 10 | 803 contacts → | ||||
Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 744 contacts → | ||||
Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 582 contacts → | ||||
Exact match “Founded in 1968, Raba Kistner Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 578 contacts → | ||||
Exact match “Since 1991, Applied Consultants Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 577 contacts → | ||||
Exact match “Headquartered in Laramie, Wyoming, Trihydro provides environmental consulting, engineering and surveying, air quality and process management, information technology, and water and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 545 contacts → | ||||
Exact match “Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 521 contacts → | ||||
Exact match “SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 518 contacts → | ||||
Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 494 contacts → | ||||
Exact match “RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 479 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 470 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 386 contacts → | ||||
Exact match “Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 375 contacts → | ||||
Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 336 contacts → | ||||
Exact match “CME Associates, with eight (8) office locations throughout New Jersey, provides a complete range of Environmental, Geotechnical, Engineering, Surveying and Planning services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 336 contacts → | ||||
Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 312 contacts → | ||||
Exact match “Established in 1881, Froehling & Robertson, Inc.” Recorded in the RevenueBase company graph · Sep 20, 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 “geothermal consultants”. 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 3,831 geothermal consultants based in the United States
See the full list, filter by size, metro and specialty, and access 35,143 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Geothermal consultants based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,831 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 the United States whose business descriptions match “geothermal consultants” 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 35,143 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 20, 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.
Geothermal consultants by metro
- Geothermal consultants in Houston232
- Geothermal consultants in Denver77
- Geothermal consultants in Austin57
- Geothermal consultants in New York51
- Geothermal consultants in San Diego41
- Geothermal consultants in Portland36
- Geothermal consultants in Dallas32
- Geothermal consultants in Reno29
- Geothermal consultants in Atlanta27
- Geothermal consultants in San Antonio25
- Geothermal consultants in Tampa25
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 “geothermal consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal consultants are there based in the United States?
RevenueBase identified 3,831 company matches for geothermal consultants 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?
Terracon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geothermal consultants?
Houston leads with 232 company records, followed by Denver (77) and Austin (57).
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 35,143 professional contacts with verified work emails tracked across these 3,831 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,831 geothermal consultants based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Geothermal consultants by geography
- Geothermal consultants based in Adelaide, Australia
- Geothermal consultants based in Brisbane, Australia
- Geothermal consultants based in Melbourne, Australia
- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia
- Geothermal consultants based in Belo Horizonte, Brazil
- Geothermal consultants based in Curitiba, Brazil
- Geothermal consultants based in Porto Alegre, Brazil
- Geothermal consultants based in Rio De Janeiro, Brazil
- Geothermal consultants based in Sao Paulo, Brazil
- Geothermal consultants based in Calgary, Canada
Browse the directory
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
- Geothermal consultants based in Adelaide, Australia
- Geothermal consultants based in Brisbane, Australia
- Geothermal consultants based in Melbourne, Australia
- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia
Company intelligence · public preview
Top 25 geothermal consultants 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 3,831 matching company records for geothermal consultants based in the United States, with 75,828 tracked contacts and 35,143 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 20, 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 geothermal consultants 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 |  Terraconterracon.comHQ: Olathe, KS, United StatesReported employees: 5,001-10,000 | Olathe, KS, United States | 5,001-10,000 | Exact match | 6,113 contacts → |
“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ECS Group Of Companiesecslimited.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,210 contacts → |
“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Parsippany, NJ, United StatesReported employees: 1,001-5,000 | Parsippany, NJ, United States | 1,001-5,000 | Exact match | 2,177 contacts → |
“Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Partner Engineering & Science, INCpartneresi.comHQ: Torrance, CA, United StatesReported employees: 1,001-5,000 | Torrance, CA, United States | 1,001-5,000 | Exact match | 1,358 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ormat Technologies, INCormat.comHQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Knight Piesoldknightpiesold.comHQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 1,231 contacts → |
“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Barr Engineering CObarr.comHQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 1,088 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  GZA Geoenvironmental, INCgza.comHQ: Norwood, MA, United StatesReported employees: 501-1,000 | Norwood, MA, United States | 501-1,000 | Exact match | 880 contacts → |
“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Willdanwilldan.comHQ: Anaheim, CA, United StatesReported employees: 1,001-5,000 | Anaheim, CA, United States | 1,001-5,000 | Exact match | 851 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Syska Hennessy Groupsyska.comHQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 803 contacts → |
“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  PAEpae-engineers.comHQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 744 contacts → |
“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Raba Kistner, INCrkci.comHQ: San Antonio, TX, United StatesReported employees: 501-1,000 | San Antonio, TX, United States | 501-1,000 | Exact match | 582 contacts → |
“Founded in 1968, Raba Kistner Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Applied Consultantsappliedconsultants.comHQ: Longview, TX, United StatesReported employees: 501-1,000 | Longview, TX, United States | 501-1,000 | Exact match | 578 contacts → |
“Since 1991, Applied Consultants Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Trihydro Corporationtrihydro.comHQ: Laramie, WY, United StatesReported employees: 501-1,000 | Laramie, WY, United States | 501-1,000 | Exact match | 577 contacts → |
“Headquartered in Laramie, Wyoming, Trihydro provides environmental consulting, engineering and surveying, air quality and process management, information technology, and water and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Vanderweil Engineersvanderweil.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 545 contacts → |
“Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Saexplorationsaexploration.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 521 contacts → |
“SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Nova Engineering And Environmental, LLCusanova.comHQ: Kennesaw, GA, United StatesReported employees: 501-1,000 | Kennesaw, GA, United States | 501-1,000 | Exact match | 518 contacts → |
“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  RRC Companiesrrccompanies.comHQ: Round Rock, TX, United StatesReported employees: 201-500 | Round Rock, TX, United States | 201-500 | Exact match | 494 contacts → |
“RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Geoengineers INCgeoengineers.comHQ: Redmond, WA, United StatesReported employees: 201-500 | Redmond, WA, United States | 201-500 | Exact match | 479 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Scmi INCscmi-inc.comHQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 470 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  Glumacglumac.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 386 contacts → |
“Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  P2sp2sinc.comHQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 375 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  CME Associatescmeusa1.comHQ: Parlin, NJ, United StatesReported employees: 201-500 | Parlin, NJ, United States | 201-500 | Exact match | 336 contacts → |
“CME Associates, with eight (8) office locations throughout New Jersey, provides a complete range of Environmental, Geotechnical, Engineering, Surveying and Planning services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  NUS Consulting Groupnusconsulting.comHQ: Park Ridge, NJ, United StatesReported employees: 201-500 | Park Ridge, NJ, United States | 201-500 | Exact match | 336 contacts → |
“National Utility Service, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Froehling & Robertson, INCfandr.comHQ: Richmond, VA, United StatesReported employees: 201-500 | Richmond, VA, United States | 201-500 | Exact match | 312 contacts → |
“Established in 1881, Froehling & Robertson, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,831 company matches
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Geothermal consultants: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,827 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,831 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 20, 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 ↗
Geothermal consultants by metro
- Geothermal consultants in Houston232
- Geothermal consultants in Denver77
- Geothermal consultants in Austin57
- Geothermal consultants in New York51
- Geothermal consultants in San Diego41
- Geothermal consultants in Portland36
- Geothermal consultants in Dallas32
- Geothermal consultants in Reno29
- Geothermal consultants in Atlanta27
- Geothermal consultants in San Antonio25
- Geothermal consultants in Tampa25
Questions about this company list
What does Exact match mean for geothermal consultants?
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 geothermal consultants did RevenueBase find based in the United States?
The saved snapshot records 3,831 matching company records, 75,828 tracked contacts and 35,143 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 20, 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
Geothermal consultants by geography
- Geothermal consultants based in Adelaide, Australia
- Geothermal consultants based in Brisbane, Australia
- Geothermal consultants based in Melbourne, Australia
- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia
- Geothermal consultants based in Belo Horizonte, Brazil
- Geothermal consultants based in Curitiba, Brazil
- Geothermal consultants based in Porto Alegre, Brazil
- Geothermal consultants based in Rio De Janeiro, Brazil
- Geothermal consultants based in Sao Paulo, Brazil
- Geothermal consultants based in Calgary, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 geothermal consultants based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-consultants/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
- Geothermal consultants based in Adelaide, Australia
- Geothermal consultants based in Brisbane, Australia
- Geothermal consultants based in Melbourne, Australia
- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia
Company intelligence · public preview
Top 25 geothermal consultants based in the United States
RevenueBase records 3,831 matching company records for geothermal consultants based in the United States, with 75,828 tracked contacts and 35,143 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 20, 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 geothermal consultants 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 | Terraconterracon.com HQ: Olathe, KS, United StatesReported employees: 5,001-10,000 | Olathe, KS, United States | 5,001-10,000 | Exact match | 6,113 contacts → |
“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ECS Group Of Companiesecslimited.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,210 contacts → |
“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Parsippany, NJ, United StatesReported employees: 1,001-5,000 | Parsippany, NJ, United States | 1,001-5,000 | Exact match | 2,177 contacts → |
“Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Partner Engineering & Science, INCpartneresi.com HQ: Torrance, CA, United StatesReported employees: 1,001-5,000 | Torrance, CA, United States | 1,001-5,000 | Exact match | 1,358 contacts → |
“Partner Assessment Corp.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ormat Technologies, INCormat.com HQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Knight Piesoldknightpiesold.com HQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 1,231 contacts → |
“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Barr Engineering CObarr.com HQ: Minneapolis, MN, United StatesReported employees: 1,001-5,000 | Minneapolis, MN, United States | 1,001-5,000 | Exact match | 1,088 contacts → |
“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | GZA Geoenvironmental, INCgza.com HQ: Norwood, MA, United StatesReported employees: 501-1,000 | Norwood, MA, United States | 501-1,000 | Exact match | 880 contacts → |
“Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc.(GZA) has grown into a full-service company providing its clients with highly…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Willdanwilldan.com HQ: Anaheim, CA, United StatesReported employees: 1,001-5,000 | Anaheim, CA, United States | 1,001-5,000 | Exact match | 851 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Syska Hennessy Groupsyska.com HQ: New York, United StatesReported employees: 501-1,000 | New York, United States | 501-1,000 | Exact match | 803 contacts → |
“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | PAEpae-engineers.com HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 744 contacts → |
“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Raba Kistner, INCrkci.com HQ: San Antonio, TX, United StatesReported employees: 501-1,000 | San Antonio, TX, United States | 501-1,000 | Exact match | 582 contacts → |
“Founded in 1968, Raba Kistner Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Applied Consultantsappliedconsultants.com HQ: Longview, TX, United StatesReported employees: 501-1,000 | Longview, TX, United States | 501-1,000 | Exact match | 578 contacts → |
“Since 1991, Applied Consultants Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Trihydro Corporationtrihydro.com HQ: Laramie, WY, United StatesReported employees: 501-1,000 | Laramie, WY, United States | 501-1,000 | Exact match | 577 contacts → |
“Headquartered in Laramie, Wyoming, Trihydro provides environmental consulting, engineering and surveying, air quality and process management, information technology, and water and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vanderweil Engineersvanderweil.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 545 contacts → |
“Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Saexplorationsaexploration.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 521 contacts → |
“SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Nova Engineering And Environmental, LLCusanova.com HQ: Kennesaw, GA, United StatesReported employees: 501-1,000 | Kennesaw, GA, United States | 501-1,000 | Exact match | 518 contacts → |
“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | RRC Companiesrrccompanies.com HQ: Round Rock, TX, United StatesReported employees: 201-500 | Round Rock, TX, United States | 201-500 | Exact match | 494 contacts → |
“RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Geoengineers INCgeoengineers.com HQ: Redmond, WA, United StatesReported employees: 201-500 | Redmond, WA, United States | 201-500 | Exact match | 479 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Scmi INCscmi-inc.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 470 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Glumacglumac.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 386 contacts → |
“Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | P2sp2sinc.com HQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 375 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | CME Associatescmeusa1.com HQ: Parlin, NJ, United StatesReported employees: 201-500 | Parlin, NJ, United States | 201-500 | Exact match | 336 contacts → |
“CME Associates, with eight (8) office locations throughout New Jersey, provides a complete range of Environmental, Geotechnical, Engineering, Surveying and Planning services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NUS Consulting Groupnusconsulting.com HQ: Park Ridge, NJ, United StatesReported employees: 201-500 | Park Ridge, NJ, United States | 201-500 | Exact match | 336 contacts → |
“National Utility Service, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Froehling & Robertson, INCfandr.com HQ: Richmond, VA, United StatesReported employees: 201-500 | Richmond, VA, United States | 201-500 | Exact match | 312 contacts → |
“Established in 1881, Froehling & Robertson, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,831 company matches
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Geothermal consultants: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,827 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,831 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 20, 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 ↗
Geothermal consultants by metro
- Geothermal consultants in Houston232
- Geothermal consultants in Denver77
- Geothermal consultants in Austin57
- Geothermal consultants in New York51
- Geothermal consultants in San Diego41
- Geothermal consultants in Portland36
- Geothermal consultants in Dallas32
- Geothermal consultants in Reno29
- Geothermal consultants in Atlanta27
- Geothermal consultants in San Antonio25
- Geothermal consultants in Tampa25
Questions about this company list
What does Exact match mean for geothermal consultants?
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 geothermal consultants did RevenueBase find based in the United States?
The saved snapshot records 3,831 matching company records, 75,828 tracked contacts and 35,143 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 20, 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
Geothermal consultants by geography
- Geothermal consultants based in Adelaide, Australia
- Geothermal consultants based in Brisbane, Australia
- Geothermal consultants based in Melbourne, Australia
- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia
- Geothermal consultants based in Belo Horizonte, Brazil
- Geothermal consultants based in Curitiba, Brazil
- Geothermal consultants based in Porto Alegre, Brazil
- Geothermal consultants based in Rio De Janeiro, Brazil
- Geothermal consultants based in Sao Paulo, Brazil
- Geothermal consultants based in Calgary, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 geothermal consultants based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-consultants/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Geothermal consultants based in Perth, Australia
- Geothermal consultants based in Sydney, Australia
- Geothermal consultants based in West Perth, Australia