Company lists · Data refreshed October 2026

Top 25 Energy efficient infrastructure consultants based in the United States

Name: Energy efficient infrastructure consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 4,030 companies tracked

RevenueBase identified 4,030 company matches for energy efficient infrastructure consultants associated with the United States as of October 2026 and tracks 355,225 professional contacts across them, including 154,019 with verified work emails. New York is the largest hub.

This list covers company matches for energy efficient infrastructure 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 October 12, 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 Oct 12, 2026 How this list was built

4,030Companies

355,225Contacts tracked

154,019Verified emails

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The 25 largest energy efficient infrastructure consultants based in the United States

Ranked by team size

Top 25 of 4,030 company matches for energy efficient infrastructure consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Oct 12, 2026	10001+	65,956 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Oct 12, 2026	10001+	48,845 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Oct 12, 2026	10001+	13,725 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Oct 12, 2026	10001+	11,438 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	10001+	10,184 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Carrier	Exact match	Palm Beach Gardens, FL, United StatesHQ recorded Oct 12, 2026	10001+	8,060 contacts →
	Exact match “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	URS Corporation, An Aecom Company	Exact match	San Francisco, CA, United StatesHQ recorded Oct 12, 2026	10001+	8,001 contacts →
	Exact match “URS Corporation operations are now affiliated with AECOM.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	TRC Companies, INC	Exact match	Windsor, CT, United StatesHQ recorded Oct 12, 2026	5,001-10,000	7,140 contacts →
	Exact match “TRC, a member of WSP, stands for adaptability.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 12, 2026	5,001-10,000	4,415 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	STV	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	1,001-5,000	3,752 contacts →
	Exact match “Follow STV for practical insight into the infrastructure, ideas and people making communities better.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	TYLIN	Exact match	San Francisco, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	3,179 contacts →
	Exact match “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	FTI	Exact match	Menasha, WI, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,979 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	HOK	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,772 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,692 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,521 contacts →
	Exact match “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,402 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 · Oct 12, 2026 · View company records in RevenueBase
17	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,293 contacts →
	Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Olsson	Exact match	Lincoln, NE, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,229 contacts →
	Exact match “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,206 contacts →
	Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,064 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Salas O'brien	Exact match	Irvine, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,053 contacts →
	Exact match “Salas O’Brien is an employee-owned engineering, science, and technical services firm focused on advancing the human experience through the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	DLR Group	Exact match	30 Offices, MN, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,039 contacts →
	Exact match “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,980 contacts →
	Exact match “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Smithgroup	Exact match	Detroit, MI, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,887 contacts →
	Exact match “SmithGroup is an award-winning, multi-national integrated design firm that employs research, data, advanced technologies and design thinking to help clients solve their greatest…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	DT Global	Exact match	Arlington, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,813 contacts →
	Exact match “DT Global is a project delivery and advisory firm that works with clients worldwide to deliver sustainable positive impact.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

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

This list uses Exact for “energy efficient infrastructure 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 4,030 energy efficient infrastructure consultants based in the United States

See the full list, filter by size, metro and specialty, and access 154,019 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient infrastructure consultants based in the United States at a glance

As of Oct 12, 2026

43.4%Verified-email coverage

88.1Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · New York

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

2,137

11-50

1,218

51-200

401

201-500

137

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 4,030 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 “energy efficient infrastructure 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 154,019 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 October 12, 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.

Energy efficient infrastructure 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 “energy efficient infrastructure consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient infrastructure consultants are there based in the United States?

RevenueBase identified 4,030 company matches for energy efficient infrastructure consultants associated with the United States as of October 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?

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

Which city has the most energy efficient infrastructure consultants?

New York leads with 182 company records, followed by Houston (118) and Chicago (81).

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 154,019 professional contacts with verified work emails tracked across these 4,030 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 October 12, 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.