Company lists · Data refreshed September 2026

Top 12 Hydrogeological consultants based in New York, United States

Name: Hydrogeological consultants based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 38 companies tracked

RevenueBase identified 38 company matches for hydrogeological consultants associated with New York, United States as of September 2026 and tracks 2,658 professional contacts across them, including 1,748 with verified work emails. Across the United States, Houston is the largest hub for this category (188 companies); New York has 38.

This list covers company matches for hydrogeological consultants associated with New York, 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 21, 2026.

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

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

38Companies

2,658Contacts tracked

1,748Verified emails

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The 12 largest hydrogeological consultants based in New York, United States

Ranked by team size

Top 12 of 38 company matches for hydrogeological consultants based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Hazen And Sawyer	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,100 contacts →
	Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Mueser Rutledge Consulting Engineers	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	157 contacts →
	Exact match “Mueser Rutledge Consulting Engineers is a leading engineering firm providing structural design of foundations and waterfront structures and complete geotechnical studies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	KC Engineering And Land Surveying, P.C	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	120 contacts →
	Exact match “KC is a diversified, multi-disciplined consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	True Environmental	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	37 contacts →
	Exact match “True Environmental (“True”) is building a diversified environmental services organization focused on consulting and engineering, water/wastewater management, testing/analytical…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Boomi Environmental LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	21 contacts →
	Exact match “Boomi Environmental LLC (Boomi) is a premier environmental consulting firm specializing in providing practical, sustainable, and cost-effective solutions to water, wastewater, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Crescit Executive Search	Exact match	New York, United StatesHQ recorded Sep 21, 2026	1-10	19 contacts →
	Exact match “At Crescit: Executive Search, we are passionate about connecting skilled engineering professionals with top firms in the US.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Hydro Tech Environmental Engineering And Geology, DPC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	10 contacts →
	Exact match “HydroTech Environmental Engineering and Geology, DPC, is a specialized engineering and consultancy firm that offers comprehensive, integrated services across the Water…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Vektor Consultants	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	9 contacts →
	Exact match “An environmental consulting and construction management company providing an all-encompassing package to carry your projects to the next level.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	The Casa Group, INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “Headquartered in New York City, The CASA Group, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Tenen Environmental	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	6 contacts →
	Exact match “Tenen Environmental provides effective and real world solutions for its clients in the areas of environmental engineering, geology and hydrogeology and regulatory compliance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	E4p Consulting Engineering Pllc	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	ZAFRA	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	4 contacts →
	Exact match “Zafra Construction provides construction consultancy and engineering services to clients worldwide.” Recorded in the RevenueBase company graph · Sep 21, 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 “hydrogeological 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 12 of 38 hydrogeological consultants based in New York, United States

See the full list, filter by size, metro and specialty, and access 1,748 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 21, 2026

65.8%Verified-email coverage

69.9Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 38 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 New York, United States whose business descriptions match “hydrogeological 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 1,748 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 21, 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.

Hydrogeological consultants by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

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

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

RevenueBase identified 38 company matches for hydrogeological consultants associated with New York, 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?

Hazen And Sawyer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most hydrogeological consultants?

Houston leads the United States with 188 company records, followed by Denver (61) and Austin (38). New York has 38.

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 1,748 professional contacts with verified work emails tracked across these 38 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 21, 2026.

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About this data

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