Company lists · Data refreshed October 2026

Top 25 Conservation engineering firms based in Chicago, United States

Name: Conservation engineering firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 41 companies tracked

RevenueBase identified 41 company matches for conservation engineering firms associated with Chicago, United States as of October 2026 and tracks 2,582 professional contacts across them, including 1,220 with verified work emails. Across the United States, Houston is the largest hub for this category (132 companies); Chicago has 41.

This list covers company matches for conservation engineering firms associated with Chicago, 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 10, 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 10, 2026 How this list was built

41Companies

2,582Contacts tracked

1,220Verified emails

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The 25 largest conservation engineering firms based in Chicago, United States

Ranked by team size

Top 25 of 41 company matches for conservation engineering firms based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	Collins Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	424 contacts →
	Exact match “In 1979, Collins Engineers, Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Primera Engineers	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	369 contacts →
	Exact match “Primera Engineers is a mid-size, full-service, woman-owned (WBE) engineering design and consulting firm specializing in four areas of expertise: buildings, transportation…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Infrastructure Engineering INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	224 contacts →
	Exact match “Infrastructure Engineering Inc.(IEI) is a majority African American-owned, multi-disciplinary consulting firm with offices in eight states that delivers design engineering…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	ESD NOW Stantec Consulting Services	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	186 contacts →
	Exact match “A global company, ESD is a leader in Improving Society Through the Built Environment.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	D'escoto, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	162 contacts →
	Exact match “d'Escoto, Inc, established in 1972 and incorporated in 1977, is a professional business enterprise offering multi-disciplinary design and construction services to public and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	R.M. Chin & Associates, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	135 contacts →
	Exact match “R.M.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	KDM Engineering	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	115 contacts →
	Exact match “Founded upon a vision of challenging and changing the energy infrastructure to help light up the world, KDM specializes in engineering consulting and design, program and project…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Singh Associates, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	115 contacts →
	Exact match “For more than 30 years, SINGH + Associates has been meeting and exceeding our clients’ expectations for high quality planning, design and engineering services delivered with care…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Ciorba Group, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	74 contacts →
	Exact match “Ciorba Group has been providing professional engineering services to various state and local governmental agencies for over 95 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	WRD Environmental	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	65 contacts →
	Exact match “WRD Environmental helps organizations committed to sustainability realize their vision.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Environmental Design International INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	63 contacts →
	Exact match “Clients can trust Environmental Design International inc.(EDI) to be responsive, demonstrate technical excellence, adhere to the demands of budgets and schedules, and offer…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Dynasty Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	62 contacts →
	Exact match “Dynasty Group, Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Specialty Consulting, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	51-200	42 contacts →
	Exact match “Specialty Consulting, Inc.(SPC) is a Hispanic–owned, infrastructure engineering and scientific consulting firm based in Chicago.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Greenprint Partners	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	38 contacts →
	Exact match “Greenprint Partners is an award-winning consulting firm specializing in community-centered environmental infrastructure.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	SRS Sustainment And Restoration Services	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	34 contacts →
	Exact match “SRS provides engineering, science, and construction services to deliver sustainable facility design and construction including the restoration of previously used sites for…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Antero Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	32 contacts →
	Exact match “Civil Engineering \| Urban & Rural Planning \| Economic Development \| Grant Services \| Branding & Marketing \| Environmental Antero Group is an interdisciplinary firm that integrates…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Orion Engineers, Pllc	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	26 contacts →
	Exact match “Orion Engineers, PLLC is a civil, structural & construction engineering consulting firm based in the Midwest delivering planning, design, and construction management services to…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Patrick	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	201-500	25 contacts →
	Exact match “Patrick, a RINA company, is a US based engineering & design, construction, management services, and technology firm.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Carlson Environmental, A Nova Group, GBC Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	18 contacts →
	Exact match “Carlson Environmental, a Nova Group, GBC Company, was originally founded in 1988 by Dr.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Allegro Civil Engineers	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	1-10	6 contacts →
	Exact match “A consulting civil engineering firm headquartered in Chicago, Illinois.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Ark. Engineering Associates, LTD	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	1-10	5 contacts →
	Exact match “ARK.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Coyne Architects	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	3 contacts →
	Exact match “Coyne Architects provides planning, architecture, engineering, and interior design services to public and private sector clients.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Environmental Group Services Limited Egsl	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	11-50	2 contacts →
	Exact match “Environmental Group Services, Ltd.(EGSL) is a full service environmental engineering, training and consulting company located in Chicago, Illinois.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Futurity	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “Our landscapes inspire and invite exploration and function to address the impacts of climate change.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Bollman Engineering	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “Bollman Engineering is a civil engineering firm, that blends excellence and innovation in every project.” Recorded in the RevenueBase company graph · Oct 10, 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 “conservation engineering firms”. 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 41 conservation engineering firms based in Chicago, United States

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Conservation engineering firms based in Chicago, United States at a glance

As of Oct 10, 2026

47.3%Verified-email coverage

63.0Average contacts per company

11-50Median size (employees)

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 41 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 Chicago, United States whose business descriptions match “conservation engineering firms” 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 1,220 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 10, 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.

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

How many conservation engineering firms are there based in Chicago, United States?

RevenueBase identified 41 company matches for conservation engineering firms associated with Chicago, 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?

Collins Engineers, INC 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 conservation engineering firms?

Houston leads the United States with 132 company records, followed by New York (82) and Austin (75). Chicago has 41.

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 1,220 professional contacts with verified work emails tracked across these 41 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 10, 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.