Company lists · Data refreshed November 2026

Top 25 Retrofit architects based in the United States

Name: Retrofit architects based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 10,186 companies tracked

RevenueBase identified 10,186 company matches for retrofit architects associated with the United States as of November 2026 and tracks 124,752 professional contacts across them, including 57,205 with verified work emails. New York is the largest hub.

This list covers company matches for retrofit architects 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 November 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 Nov 6, 2026 How this list was built

10,186Companies

124,752Contacts tracked

57,205Verified emails

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The 25 largest retrofit architects based in the United States

Ranked by team size

Top 25 of 10,186 company matches for retrofit architects based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 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	DLR Group	Exact match	30 Offices, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,118 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 · Nov 6, 2026 · View company records in RevenueBase
2	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,116 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	PAGE	Exact match	Washington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,456 contacts →
	Exact match “Performance by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	KPF	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	1,091 contacts →
	Exact match “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	PAE	Exact match	Portland, NV, United StatesHQ recorded Nov 6, 2026	201-500	843 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Parkhill	Exact match	Lubbock, OK, United StatesHQ recorded Nov 6, 2026	501-1,000	665 contacts →
	Exact match “We are a full-service design firm of extraordinary planners, designers, architects, and engineers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	RSP Architects	Exact match	Minneapolis, MN, United StatesHQ recorded Nov 6, 2026	201-500	646 contacts →
	Exact match “We are makers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Architecture	Exact match	Troy, NY, United StatesHQ recorded Nov 6, 2026	n/a	622 contacts →
	Exact match “architecture+ is a design and service-oriented architectural and planning firm located in Troy in New York's Capital Region.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Ls3p Associates LTD	Exact match	Charleston, SC, United StatesHQ recorded Nov 6, 2026	201-500	586 contacts →
	Exact match “LS3P is an architecture, interiors, and planning firm celebrating more than 60 years of design excellence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Little Diversified Architectural Consulting	Exact match	Little Global, VA, United StatesHQ recorded Nov 6, 2026	201-500	529 contacts →
	Exact match “At Little, we deliver results far beyond architecture-results you wouldn’t expect from an architectural firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Mcmillan Pazdan Smith Architecture	Exact match	Greenville, NC, United StatesHQ recorded Nov 6, 2026	201-500	509 contacts →
	Exact match “McMillan Pazdan Smith Architecture is an architecture, advisory services, planning, and interior design firm recognized for our collaborative culture and innovative solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	TVS	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	51-200	508 contacts →
	Exact match “TVS is an award-winning architecture and interior design firm headquartered in Atlanta, GA with global project expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Estudio Architecture	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	n/a	397 contacts →
	Exact match “eStudio is a specialized full service architectural and boutique design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	SCB	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	391 contacts →
	Exact match “SCB is an architecture, planning, interior and urban design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	AO	Exact match	Orange, CA, United StatesHQ recorded Nov 6, 2026	201-500	386 contacts →
	Exact match “Founded in 1974, AO is a full service Architectural, Master Planning and Design firm specializing in Retail, Residential and Mixed-Use projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	The Austin Company	Exact match	Cleveland, CA, United StatesHQ recorded Nov 6, 2026	201-500	385 contacts →
	Exact match “The Austin Company offers a comprehensive portfolio of in-house services, including planning, architectural design, engineering, design-build, construction management, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Wendel Companies	Exact match	Williamsville, NY, United StatesHQ recorded Nov 6, 2026	201-500	375 contacts →
	Exact match “Wendel is an Architecture, Engineering, Energy Efficiency, and Construction Management Firm that delivers customized solutions and turnkey projects in innovative ways.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Greenbergfarrow GF	Exact match	Atlanta, CA, United StatesHQ recorded Nov 6, 2026	201-500	370 contacts →
	Exact match “GF is a fully integrated architecture, engineering, planning, interior design, landscape architecture and land development firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Cooper Carry	Exact match	Atlanta, CO, United StatesHQ recorded Nov 6, 2026	201-500	355 contacts →
	Exact match “Connection by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	MBH Architects	Exact match	Alameda, NY, United StatesHQ recorded Nov 6, 2026	201-500	349 contacts →
	Exact match “MBH Architects is a full-service architectural firm headquartered in a LEED Gold office in the San Francisco Bay Area with offices in New York City, Denver, Mumbai, and Bengaluru.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Newcomb & Boyd, LLP	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	201-500	347 contacts →
	Exact match “Newcomb & Boyd is an integrated engineering partner helping owners, architects, and design teams create high-performing buildings that deliver lasting value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	MGE Companies MG Engineering, MGE Unified Technologies, MGE Lighting Design Collaborative	Exact match	Iselin, NJ, United StatesHQ recorded Nov 6, 2026	51-200	343 contacts →
	Exact match “MG ENGINEERING MGE UNIFIED TECHNOLOGIES MGE LIGHTING DESIGN COLLABORATIVE We strive to provide comprehensive, best-in-class engineering and Technology services that embrace…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Bulley & Andrews	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	338 contacts →
	Exact match “It’s not just what we build, but why.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Ballinger	Exact match	Philadelphia, PA, United StatesHQ recorded Nov 6, 2026	201-500	333 contacts →
	Exact match “Ballinger's Philadelphia-based, integrated team of architects, engineers, planners, and interior designers works with visionary institutions to create places that empower those…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	PGAL	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	332 contacts →
	Exact match “Founded in 1946, PGAL is a design firm specializing in architecture, engineering, interiors, and planning for a diverse portfolio of public and private sector clients.” Recorded in the RevenueBase company graph · Nov 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 “retrofit architects”. 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 10,186 retrofit architects based in the United States

See the full list, filter by size, metro and specialty, and access 57,205 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Retrofit architects based in the United States at a glance

As of Nov 6, 2026

45.9%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

6,613

11-50

2,949

51-200

499

201-500

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 10,186 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 “retrofit architects” 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 57,205 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 November 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.

Retrofit architects 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 “retrofit architects”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many retrofit architects are there based in the United States?

RevenueBase identified 10,186 company matches for retrofit architects associated with the United States as of November 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?

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

Which city has the most retrofit architects?

New York leads with 660 company records, followed by Los Angeles (256) and Chicago (198).

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 57,205 professional contacts with verified work emails tracked across these 10,186 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 November 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.