Company lists · Data refreshed September 2026

Top 25 Rock engineering consultants based in the United States

Name: Rock engineering consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 4,080 companies tracked

RevenueBase identified 4,080 company matches for rock engineering consultants associated with the United States as of September 2026 and tracks 95,196 professional contacts across them, including 46,048 with verified work emails. Houston is the largest hub.

This list covers company matches for rock engineering 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 17, 2026.

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

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

4,080Companies

95,196Contacts tracked

46,048Verified emails

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The 25 largest rock engineering consultants based in the United States

Ranked by team size

Top 25 of 4,080 company matches for rock engineering consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 17, 2026	5,001-10,000	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 17, 2026 · View company records in RevenueBase
2	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Walter P Moore	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,298 contacts →
	Exact match “Welcome to Walter P Moore!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Knight Piesold	Exact match	Denver, CO, United StatesHQ recorded Sep 17, 2026	1,001-5,000	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 17, 2026 · View company records in RevenueBase
5	Simpson Gumpertz & Heger SGH	Exact match	Waltham, MA, United StatesHQ recorded Sep 17, 2026	501-1,000	942 contacts →
	Exact match “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Wiss, Janney, Elstner Associates, INC	Exact match	Northbrook, IL, United StatesHQ recorded Sep 17, 2026	501-1,000	895 contacts →
	Exact match “Founded in 1956, Wiss, Janney, Elstner Associates (WJE) is an interdisciplinary firm of engineers, architects, and materials scientists committed to helping clients solve, repair…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	GZA Geoenvironmental, INC	Exact match	Norwood, MA, United StatesHQ recorded Sep 17, 2026	501-1,000	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 17, 2026 · View company records in RevenueBase
8	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 17, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Mckim & Creed, INC	Exact match	Raleigh, NC, United StatesHQ recorded Sep 17, 2026	501-1,000	759 contacts →
	Exact match “What if you had the opportunity to do something you love and make a difference in peoples' lives at the same time?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Schnabel Engineering	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 17, 2026	501-1,000	707 contacts →
	Exact match “Schnabel is a trusted partner in building the foundation for project success.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Jennmar	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	602 contacts →
	Exact match “JENNMAR \| Delivering Worldwide Solutions Jennmar is a global company leading the way in ground control technology for the mining, tunneling, civil, and infrastructure industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Whitman, Requardt And Associates, LLP	Exact match	Baltimore, MD, United StatesHQ recorded Sep 17, 2026	501-1,000	601 contacts →
	Exact match “Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Raba Kistner, INC	Exact match	San Antonio, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	582 contacts →
	Exact match “Founded in 1968, Raba Kistner Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	DRMP	Exact match	Orlando, FL, United StatesHQ recorded Sep 17, 2026	501-1,000	567 contacts →
	Exact match “Founded in 1977, DRMP is a multi-discipline civil engineering and surveying firm that develops innovative and sustainable design solutions for infrastructure in the public…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 17, 2026	501-1,000	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 17, 2026 · View company records in RevenueBase
16	Geoengineers INC	Exact match	Redmond, WA, United StatesHQ recorded Sep 17, 2026	201-500	479 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Fuss & O'neill	Exact match	Hartford, CT, United StatesHQ recorded Sep 17, 2026	201-500	461 contacts →
	Exact match “Fuss & O’Neill is a civil and environmental engineering firm that provides client-specific, forward-thinking, and holistic solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Smeusa	Exact match	Plymouth, MI, United StatesHQ recorded Sep 17, 2026	201-500	459 contacts →
	Exact match “SME® is a professional consulting engineering firm in the geosciences, materials and the environment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Ayres Associates	Exact match	Eau Claire, WI, United StatesHQ recorded Sep 17, 2026	201-500	458 contacts →
	Exact match “In 1959, Owen Ayres founded Ayres Associates atop a steadfast foundation of honesty, innovation, and good old-fashioned hard work – and a vision for a firm that revolved around…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Ninyo & Moore, A Socotec Company	Exact match	San Diego, CA, United StatesHQ recorded Sep 17, 2026	501-1,000	449 contacts →
	Exact match “Ninyo & Moore was acquired by SOCOTEC US.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Minova	Exact match	Greenwood Village, CO, United StatesHQ recorded Sep 17, 2026	1,001-5,000	449 contacts →
	Exact match “Minova is an industry leader of ground support and geotechnical solutions for mining, tunnelling and surface ground engineering projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Ttl, INC	Exact match	Tuscaloosa, AL, United StatesHQ recorded Sep 17, 2026	201-500	442 contacts →
	Exact match “Founded in 1964, TTL is an engineering design firm focused on delivering integrated infrastructure solutions for public and private clients.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Remington & Vernick Engineers	Exact match	Cherry Hill, NJ, United StatesHQ recorded Sep 17, 2026	501-1,000	438 contacts →
	Exact match “Founded in 1901, RVE has grown to be an industry leader with 500 team members in offices throughout New Jersey, Pennsylvania, Delaware, Maryland and North Carolina.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Collins Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	201-500	432 contacts →
	Exact match “In 1979, Collins Engineers, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Recon Management Services, INC	Exact match	Sulphur, LA, United StatesHQ recorded Sep 17, 2026	501-1,000	420 contacts →
	Exact match “ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

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

This list uses Exact for “rock engineering 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 4,080 rock engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 46,048 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rock engineering consultants based in the United States at a glance

As of Sep 17, 2026

48.4%Verified-email coverage

23.3Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,955

11-50

1,515

51-200

489

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 4,080 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 “rock engineering 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 46,048 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Rock engineering consultants by metro

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 “rock engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rock engineering consultants are there based in the United States?

RevenueBase identified 4,080 company matches for rock engineering 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 rock engineering consultants?

Houston leads with 83 company records, followed by New York (74) and Miami (46).

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 46,048 professional contacts with verified work emails tracked across these 4,080 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

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