Company lists · Data refreshed September 2026

Top 17 Architecture firms based in Dayton, United States

Name: Architecture firms based in Dayton, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 31 companies tracked

RevenueBase identified 31 architecture firms headquartered in Dayton, United States as of September 2026 and tracks 2,389 professional contacts across them, including 1,387 with verified work emails. New York is the largest hub.

This list covers architecture firms headquartered in Dayton, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

31Companies

2,389Contacts tracked

1,387Verified emails

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The 17 largest architecture firms based in Dayton, United States

Ranked by team size

Top 17 of 31 architecture firms based in Dayton, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to architecture firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Woolpert	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,424 contacts →
	“Woolpert is a global leader in architecture, engineering, and geospatial (AEG) services, with over a century of experience driving innovation and delivering impact.” Source: company website · checked Sep 6, 2026
2	Ceso, INC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	501-1,000	485 contacts →
	“For over thirty-five years, CESO has combined creativity with technical expertise to provide solutions that address our clients’ unique challenges and opportunities.” Source: company website · checked Sep 6, 2026
3	HEAPY	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	201-500	280 contacts →
	“HEAPY is redefining engineering excellence with a team of dedicated to delivering sustainable, resilient, and future-ready solutions.” Source: company website · checked Sep 6, 2026
4	Brackett Builders INC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	56 contacts →
	“Since 1983, Brackett Builders, Inc.” Source: company website · checked Sep 6, 2026
5	JPA Architecture	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	27 contacts →
	“JPA Architecture provides creative, responsive architecture and interior design solutions for a wide array of project types.” Source: company website · checked Sep 6, 2026
6	LWC Incorporated	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	22 contacts →
	“LWC Incorporated is an architecture, interior design and planning firm headquartered in Dayton, Ohio, The firm also has an office in Richmond, Indiana.” Source: company website · checked Sep 6, 2026
7	Moda4 Design Architecture	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	14 contacts →
	“Creative.” Source: company website · checked Sep 6, 2026
8	MER Engineers, INC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	7 contacts →
	“MER Engineers was founded in 1982 with the vision of providing innovative yet practical structural engineering solutions through creativity and technical expertise in combination…” Source: company website · checked Sep 6, 2026
9	Nauman & Zelinski LLC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	6 contacts →
	Source: company website · checked Sep 6, 2026
10	The Architectural Group, INC	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	5 contacts →
	“The Architectural Group, Incorporated (TAG) is a comprehensive professional planning, design, computer graphics, and construction services firm dedicated to creating value for our…” Source: company website · checked Sep 6, 2026
11	L2 Engineering, LLC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	4 contacts →
	“L2 Engineering (L2e) delivers responsible consulting and design services to clients who require engineering assistance, technology integration, or a combination of both.” Source: company website · checked Sep 6, 2026
12	Topos Studio	Indirect evidence	Dayton, United StatesHQ checked Sep 6, 2026	1-10	4 contacts →
	Source: company website · checked Sep 6, 2026
13	Architects Associated INC	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	3 contacts →
	“Architects Associated specializes in Architecture, Interior Design and Planning for both commercial and residential.” Source: company website · checked Sep 6, 2026
14	Ruetschle Architects	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	3 contacts →
	“Ruetschle Architects is a Dayton based architecture firm dedicated to personal attention, design excellence, and building projects of lasting value and quality.” Source: company website · checked Sep 6, 2026
15	Luken Blunt Design Group	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	3 contacts →
	“Luken Blunt Design Group, formerly Luken Interiors, believes the client is the driving force behind each project.” Source: company website · checked Sep 6, 2026
16	Helmig Lienesch LLC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	11-50	1 contacts →
	Source: company website · checked Sep 6, 2026
17	Dimension Building Group, INC	Strong evidence	Dayton, OH, United StatesHQ checked Sep 6, 2026	1-10	1 contacts →
	“General Construciton and Construction Management Sister company of K&A Architecture, Inc.” Source: company website · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: architecture firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names architecture firms.
Partial evidence: Its own public description names part of architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architecture firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 17 of 31 architecture firms based in Dayton, United States

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Architecture firms based in Dayton, United States at a glance

As of Sep 6, 2026

58.1%Verified-email coverage

77.1Average contacts per company

1-10Median size (employees)

7977.4%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Dayton, over 31 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among architecture firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Dayton, United States whose own description of what they do matches “architecture firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names architecture firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among architecture firms, and records with no verified work email. Companies headquartered outside Dayton are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,387 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Architecture firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names architecture firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many architecture firms are there based in Dayton, United States?

RevenueBase identified 31 architecture firms headquartered in Dayton, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Woolpert, headquartered in Dayton, tops this list with the largest team on record.

Which city has the most architecture firms?

New York leads with 2473 headquartered companies, followed by Los Angeles (1046) and Chicago (781).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,387 verified decision-maker contacts tracked across these 31 companies.

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 Smart Search, 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.