Company lists · Data refreshed September 2026

Top 18 Environmental design firms based in Oklahoma City, United States

Name: Environmental design firms based in Oklahoma City, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 29 companies tracked

RevenueBase identified 29 company matches for environmental design firms associated with Oklahoma City, United States as of September 2026 and tracks 661 professional contacts across them, including 356 with verified work emails. Across the United States, New York is the largest hub for this category (553 companies); Oklahoma City has 29.

This list covers company matches for environmental design firms associated with Oklahoma City, 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 19, 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 19, 2026 How this list was built

29Companies

661Contacts tracked

356Verified emails

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The 18 largest environmental design firms based in Oklahoma City, United States

Ranked by team size

Top 18 of 29 company matches for environmental design firms based in Oklahoma City, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Guernsey	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	51-200	160 contacts →
	Exact match “Founded in 1928, Guernsey is a multidisciplinary design and consulting firm based in Oklahoma City, Oklahoma, and with work across five continents.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	FSB Architects Engineers	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	51-200	149 contacts →
	Exact match “When you work with our firm, you’ll reap the benefits of partnering with an outstanding team that focuses on your needs and objectives.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	ADG Blatt	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	51-200	100 contacts →
	Exact match “ADG Blatt provides quality design, program management and urban planning services to clients throughout the country.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Miles Architecture	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	11-50	44 contacts →
	Exact match “Miles Architecture is comprised of a specialized group of design professionals providing planning, architectural, interior design, and project management solutions for complex…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Gsb, INC	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	11-50	38 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Stantech Environmental Services	Exact match	Oklahoma City, United StatesHQ recorded Sep 19, 2026	11-50	32 contacts →
	Exact match “Environmental Consulting” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Bockus Payne	Exact match	Oklahoma City, United StatesHQ recorded Sep 19, 2026	11-50	24 contacts →
	Exact match “Collective.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Tradesman Architectural Studios	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	14 contacts →
	Exact match “TRADESMAN architectural studios is a boutique design firm with a focus on the craft of integrated construction and design.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	TAP Architecture	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	13 contacts →
	Exact match “TAP Architecture is an award winning, full service design firm based in Oklahoma City.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Studio Architecture P.C	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “We are a multidisciplinary architecture, interiors, and planning firm built on the idea that design should be collaborative.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Blair Remy Architects	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “Blair Remy Architects is an award-winning architectural firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Richard R. Brown Associates, Architects	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Full Service architecture, Planning and interior Design Firm, RBA was formed in 1985, and is licensed in over 30 states.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Hsearchitects	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “HSEarchitects is a versatile architecture, planning, and interior design firm with projects spanning across Oklahoma, Texas, Colorado, and Arkansas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Design Architects Plus, INC	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	3 contacts →
	Exact match “Our teams design philosophy is simple……Listen to our clients and let them express their needs and goals before providing a creative way to get there.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Studio A Design & Development	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Design and development firm going beyond the standard building experience [ARCHITECTURAL SERVICES] We are a full-service architectural firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Butzer Architects And Urbanism	Exact match	Oklahoma City, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Our designs result through the dialectic between conditions and client, pivoting on a physical site impacted by the visible and invisible topographies of context.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	CLS & Associates, LLC	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “CLS & Associates, LLC is a landscape architecture firm established in Oklahoma City in by Principal Connie Scothorn.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Fitzsimmons Architects	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Fitzsimmons Architects approaches architecture as a form of art, creating built forms and spaces that both inspire and serve as meaningful places of purpose.” Recorded in the RevenueBase company graph · Sep 19, 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 “environmental design 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 18 of 29 environmental design firms based in Oklahoma City, United States

See the full list, filter by size, metro and specialty, and access 356 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental design firms based in Oklahoma City, United States at a glance

As of Sep 19, 2026

53.9%Verified-email coverage

22.8Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Oklahoma City, so it is reported there. Company counts and contact totals on this page are exact for Oklahoma City, over 29 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 Oklahoma City, United States whose business descriptions match “environmental design 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 356 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 19, 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.

Environmental design 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 “environmental design firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental design firms are there based in Oklahoma City, United States?

RevenueBase identified 29 company matches for environmental design firms associated with Oklahoma City, 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?

Guernsey 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 environmental design firms?

New York leads the United States with 553 company records, followed by Los Angeles (272) and Chicago (205). Oklahoma City has 29.

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 356 professional contacts with verified work emails tracked across these 29 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 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 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.