Company lists · Data refreshed September 2026

Top 25 Architectural firms based in St. Louis, United States

Name: Architectural firms based in St. Louis, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 82 companies tracked

RevenueBase identified 82 company matches for architectural firms associated with St. Louis, United States as of September 2026 and tracks 2,090 professional contacts across them, including 815 with verified work emails. Across the United States, New York is the largest hub for this category (1,839 companies); St. Louis has 145.

This list covers company matches for architectural firms associated with St. Louis, 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 6, 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 6, 2026 How this list was built

82Companies

2,090Contacts tracked

815Verified emails

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The 25 largest architectural firms based in St. Louis, United States

Ranked by team size

Top 25 of 82 company matches for architectural firms based in St. Louis, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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	Arco National Construction Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	295 contacts →
	Exact match “Founded in 1992 on the principle that construction should be an enjoyable and beneficial process for our associates and customers, ARCO has grown to become a leader in the…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	The Korte Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	201-500	243 contacts →
	Exact match “The Korte Company was founded in 1958 on the belief that professionalism, quality and value added services are fundamental to a successful company.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3	KAI Enterprises	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	233 contacts →
	Exact match “Established in St.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	Lawrence Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	209 contacts →
	Exact match “Lawrence Group is a best-in-class design firm using the power of people with great ideas to bring clients’ dreams to life.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	CDG Engineers, INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	113 contacts →
	Exact match “CDG Engineers is a full service, multi-discipline professional services organization with capabilities in civil, structural, electrical and mechanical engineering, as well as…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6	Winco Window	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	81 contacts →
	Exact match “Our history of innovation is coupled with expertise in historic replication.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Case Engineering, INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	75 contacts →
	Exact match “The principals at Case Engineering, Inc.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Cochran	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	75 contacts →
	Exact match “Cochran is a growing, multi-location Civil Engineering/Land Surveying firm currently ranked #11 among the Largest Engineering Firms in the St.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9	Arcvision Incorporated	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	72 contacts →
	Exact match “Founded in 1995 by Doug Ashdown and Fred Goglia, ArcVision Inc.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	Mackey Mitchell Architects	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	58 contacts →
	Exact match “Mackey Mitchell Architects partners with colleges, universities, and communities to create places that support belonging, wellbeing, and learning.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	Counsilman-Hunsaker	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	57 contacts →
	Exact match “Counsilman-Hunsaker offers diverse solutions and leadership for every aquatic facility and project – from architectural design and engineering to planning and risk management.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	Gray Design Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	51-200	56 contacts →
	Exact match “As a leading architecture, interiors and experiential graphic design firm in Saint Louis for over 40 years, Gray Design Group's integrated approach creates cohesive spaces that…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	Oculus INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	52 contacts →
	Exact match “Founded in 1994, Oculus Inc.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14	M H Architects	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	40 contacts →
	Exact match “M+H Architects began as Mitchell and Hugeback Architects in 1989, and our focus was to be a service business specializing in architecture.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15	Spellman Brady & Company	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	36 contacts →
	Exact match “Spellman Brady & Company is an award-winning St.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	SWT Design	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	33 contacts →
	Exact match “Since 1995, we’ve turned the possibilities of urban and natural spaces into living realities, adding meaning and purpose to micro details and macro views.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17	Architectural Design Guild	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	26 contacts →
	Exact match “Architectural Design Guild was founded in 1981 as a multi-disciplinary firm providing architecture, engineering (mechanical, electrical, plumbing), and interior design.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	Space Architects Designers Builders	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	23 contacts →
	Exact match “An award-winning design-build firm in St.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19	Frontenac Engineering Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	13 contacts →
	Exact match “At Frontenac Engineering, we design and implement solutions, not just projects.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	Chiodini Architects	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	13 contacts →
	Exact match “Chiodini Architects is a mid-size, highly respected Architectural firm founded as a corporation in St.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	Aleto Construction Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	1-10	11 contacts →
	Exact match “Aleto Construction Group was founded in 1955 by Thomas F.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	V Three Studios	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	1-10	11 contacts →
	Exact match “V Three Studios is a full service architectural firm with an emphasis in media and communication.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	Vessel Architecture	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	10 contacts →
	Exact match “Since its founding in 2004, Vessel Architecture has been designing buildings and building friendships.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	Owh, INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	10 contacts →
	Exact match “OWH is an Architectural firm providing planning, architectural, and interior design services with specialized expertise in healthcare, research, and entertainment project types.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	Core10 Architecture	Exact match	St. Louis, MO, United StatesHQ recorded Sep 6, 2026	11-50	10 contacts →
	Exact match “In both office location and philosophy, CORE10 Architecture sits squarely at the crossroads of the urban core in the Central West End of St.” Recorded in the RevenueBase company graph · Sep 6, 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 “architectural 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 82 architectural firms based in St. Louis, United States

See the full list, filter by size, metro and specialty, and access 815 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Architectural firms based in St. Louis, United States at a glance

As of Sep 6, 2026

39.0%Verified-email coverage

25.5Average contacts per company

1-10Median size (employees)

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for St. Louis, so it is reported there. Company counts and contact totals on this page are exact for St. Louis.

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 St. Louis, United States whose business descriptions match “architectural 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 815 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 6, 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.

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

How many architectural firms are there based in St. Louis, United States?

RevenueBase identified 82 company matches for architectural firms associated with St. Louis, 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?

Arco National Construction Company 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 architectural firms?

New York leads the United States with 1,839 company records, followed by Los Angeles (737) and Chicago (566). St. Louis has 145.

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 815 professional contacts with verified work emails tracked across these 82 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 6, 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.