Company lists · Data refreshed September 2026

Top 24 Geothermal consultants based in New York, United States

RevenueBase identified 50 geothermal consultants headquartered in New York, United States as of September 2026 and tracks 1,350 professional contacts across them, including 697 with verified work emails. Houston is the largest hub.

This list covers geothermal consultants headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
50Companies
1,350Contacts tracked
697Verified emails
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The 24 largest geothermal consultants based in New York, United States

Ranked by team size
Top 24 of 50 geothermal consultants based in New York, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, United StatesHQ checked Sep 19, 2026501-1,000803 contacts →

Indirect evidence

“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20098 contacts →

Indirect evidence

“Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20075 contacts →

Indirect evidence

“We help building owners cut carbon, reduce costs, and stay compliant.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5044 contacts →

Indirect evidence

“Boutique Engineering Consulting firm specializing in energy auditing, retro-commissioning and MEP design work.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5035 contacts →

Indirect evidence

“The Fulcrum Group is a trusted partner to owner-operators of mission-critical facilities and building energy infrastructure.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5034 contacts →

Indirect evidence

“GEA Consulting Engineers is one of New York’s top engineering firms, specializing in the innovative design of mechanical, electrical, plumbing, fire protection, commissioning…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5032 contacts →

Indirect evidence

“ads ENGINEERS, DPC, established in 1979 continues to provide high-quality engineering services to our long-standing clients based on the principals established by the founding…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5029 contacts →

Indirect evidence

“Carleton Energy specializes in Local Law 87 & Local Law 84 benchmarking compliance.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“DVL Consulting Engineers, Inc, established in October 1990, is a multifaceted Engineering Firm, specializing in Green Buildings Design for Mechanical, Electrical, and Plumbing…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5016 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“ANZ Consulting Engineering is a full-service MEP/FP design company with offices located in both Brooklyn and Midtown Manhattan.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“An environmental consulting and construction management company providing an all-encompassing package to carry your projects to the next level.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“Mosto Technologies Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“Triple Net Energy Advisory Services (TNE) is one of the most experienced energy engineering and advanced metering infrastructure technologies firms in the Tri-State area with a…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“EnergyPowerLab highly experienced specialists in RetainedSearch, RPO, BPO, Compensation Benchmarking and business-critical recruitment for Energy sector, based North America and…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Tenen Environmental provides effective and real world solutions for its clients in the areas of environmental engineering, geology and hydrogeology and regulatory compliance.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“KO2 Consulting provides strategic energy consultant services for government agencies, non- profit organizations and private companies to achieve organizational energy performance…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

“BES Group Inc-Beyond Energy Solutions was founded in 2009 in New York State.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNew York, CA, United StatesHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Bonsai Energy Group (BEG) is a Consulting Firm specializing in third-party Solar PV Quality Assurance and Owners’ Engineering services.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceNew York, United StatesHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“A DATA DRIVEN NEXT GENERATION GEOTHERMAL COMPANY De-Risking and Developing Sustainable Earth Friendly Energy Resources”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Leveling sustainability with AI.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Sustainability consulting.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 24 of 50 geothermal consultants based in New York, United States

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Geothermal consultants based in New York, United States at a glance

As of Sep 19, 2026
51.6%Verified-email coverage
27.0Average contacts per company
1-10Median size (employees)
466.0%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
17
51-200
4
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 50 companies.

How this list was built

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

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in New York, United States whose own description of what they do matches “geothermal consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names geothermal consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among geothermal consultants, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 697 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

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

How many geothermal consultants are there based in New York, United States?

RevenueBase identified 50 geothermal consultants headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Syska Hennessy Group, headquartered in New York, tops this list with the largest team on record.

Which city has the most geothermal consultants?

Houston leads with 233 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 697 verified decision-maker contacts tracked across these 50 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

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