Company lists · Data refreshed September 2026

Top 25 Environmental design firms based in Raleigh, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 48 companies tracked

RevenueBase identified 48 environmental design firms headquartered in Raleigh, United States as of September 2026 and tracks 718 professional contacts across them, including 410 with verified work emails. New York is the largest hub.

This list covers environmental design firms headquartered in Raleigh, 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 19, 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 19, 2026 86% judged on-target in blind review

48Companies

718Contacts tracked

410Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest environmental design firms based in Raleigh, United States

Ranked by team size

Top 25 of 48 environmental design firms based in Raleigh, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental design 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	CLINE	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	51-200	127 contacts →
	Partial evidence “Cline is a nationally recognized integrated design firm improving lives and transforming communities through better places for living.” Source: RevenueBase Database · checked Sep 19, 2026
2	HH Architecture	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	58 contacts →
	Partial evidence “HH Architecture is a full-service design firm.” Source: RevenueBase Database · checked Sep 19, 2026
3	Bass, Nixon & Kennedy Consulting Engineers	Indirect evidence	Raleigh, United StatesHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “Bass, Nixon & Kennedy, Inc, Consulting Engineers (BNK), founded in 1969, is a multi-discipline consulting firm providing Civil, Sanitary, Electrical, Mechanical and Fire…” Source: RevenueBase Database · checked Sep 19, 2026
4	Boomerang Design	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	37 contacts →
	Indirect evidence “In 1981, the world didn’t know it needed another architecture firm, but our founder did.” Source: RevenueBase Database · checked Sep 19, 2026
5	Jdavis	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	51-200	37 contacts →
	Partial evidence “We are an integrative, multidisciplinary design firm, providing a comprehensive suite of services and innovative design solutions.” Source: RevenueBase Database · checked Sep 19, 2026
6	SFL A Architects	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “SfL+a Architects was founded as a “service-oriented firm” in 1982.” Source: RevenueBase Database · checked Sep 19, 2026
7	Crenshaw Consulting Engineers	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	32 contacts →
	Partial evidence “Engineering & Design Management Firm that Self-Performs - Mechanical, Electrical, Plumbing, and Structural Design - Fire Alarm + Protection - LEED/Sustainable Design, Coordination…” Source: RevenueBase Database · checked Sep 19, 2026
8	Soil & Environmental Consultants, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “Soil & Environmental Consultants, Inc.(S & EC) is a premier, multidisciplinary environmental consulting firm in North Carolina and the region.” Source: RevenueBase Database · checked Sep 19, 2026
9	Mid-Atlantic Associates	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “Since 1993, Mid-Atlantic has worked to establish ourselves as the premier full-service environmental engineering and consulting firm in North Carolina.” Source: RevenueBase Database · checked Sep 19, 2026
10	Smith Sinnett Architecture	Partial evidence	Raleigh, United StatesHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “Smith Sinnett Architecture is dedicated to improving life experiences through design.” Source: RevenueBase Database · checked Sep 19, 2026
11	Tina Barnard Designs LLC	Indirect evidence	Raleigh, United StatesHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “We work with clients to create corporate interiors that encourage collaboration, boost productivity, recruit and retain top talent and increase overall satisfaction.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sungate Design Group, P.A	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Strong evidence “Sungate Design Group, PA is a civil and environmental engineering consulting firm located in Raleigh, North Carolina.” Source: RevenueBase Database · checked Sep 19, 2026
13	Arrowhead Building Company, LLC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Designers + Builders, Arrowhead offers a total package, integrating extensive fluency and experience in design and construction.” Source: RevenueBase Database · checked Sep 19, 2026
14	Integrated Design, PA	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Strong evidence “Integrated Design, PA, is a multi-disciplinary rm comprised of designers and planners transforming concepts and ideas into projects around the built environment.” Source: RevenueBase Database · checked Sep 19, 2026
15	Studio 310	Partial evidence	Raleigh, United StatesHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Studio 310 offers Architecture, Experience, and Interior Design services.” Source: RevenueBase Database · checked Sep 19, 2026
16	redesign.build	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “REdesign.build is a full service design build firm committed to award winning design and sustainability for over 29 years.” Source: RevenueBase Database · checked Sep 19, 2026
17	Pabst Design Group, PA	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	11 contacts →
	Strong evidence “Pabst Design Group, PA, a multi-discipline engineering and design firm located in Raleigh, North Carolina, specializes in civil engineering, landscape design, and environmental…” Source: RevenueBase Database · checked Sep 19, 2026
18	Clearscapes, PA	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “Clearscapes is a broad-based, full-service design firm.” Source: RevenueBase Database · checked Sep 19, 2026
19	Tightlines Designs, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial evidence “TightLines Designs is a socially responsible architecture firm whose mission is to provide eco-friendly, quality affordable housing design solutions.” Source: RevenueBase Database · checked Sep 19, 2026
20	Osterlund Architects, Pllc	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Beautiful Places: Light, views, proportion Relationships: Service, teamwork, neighborhoods.” Source: RevenueBase Database · checked Sep 19, 2026
21	IS Design	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “Our staff specializes in corporate architecture and interior design.” Source: RevenueBase Database · checked Sep 19, 2026
22	Site Collaborative	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “SITE COLLABORATIVE is a landscape architecture firm cultivated from a strong desire to create memorable places while providing exceptional client service.” Source: RevenueBase Database · checked Sep 19, 2026
23	Huntscapes	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “HuntScapes is the premiere Landscaping and Outdoor Service provider in Raleigh, Cary, Wake Forest, and North Raleigh areas.” Source: RevenueBase Database · checked Sep 19, 2026
24	Olive Architecture	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Don't think just green.” Source: RevenueBase Database · checked Sep 19, 2026
25	PDC Engineers	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Progressive Design Collaborative, Ltd.(PDC Engineers) was established in 1975 as an employee-owned collaborative and remains as such today.” Source: RevenueBase Database · checked Sep 19, 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: environmental design 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 environmental design firms.
Partial evidence: Its own public description names part of environmental design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental design 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 25 of 48 environmental design firms based in Raleigh, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 410 reachable decision-makers.

Free signup · no credit card

View the full list →

Environmental design firms based in Raleigh, United States at a glance

As of Sep 19, 2026

57.1%Verified-email coverage

15.0Average contacts per company

1-10Median size (employees)

1152.1%Largest-city concentration · New York

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 Raleigh, so it is reported there. Company counts and contact totals on this page are exact for Raleigh, over 48 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 environmental design 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 Raleigh, United States whose own description of what they do matches “environmental design 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 environmental design 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 environmental design firms, and records with no verified work email. Companies headquartered outside Raleigh 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, 410 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 19, 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.

Environmental design 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 environmental design 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 environmental design firms are there based in Raleigh, United States?

RevenueBase identified 48 environmental design firms headquartered in Raleigh, 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?

CLINE, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most environmental design firms?

New York leads with 553 headquartered companies, followed by Los Angeles (272) and Chicago (205).

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 410 verified decision-maker contacts tracked across these 48 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 48 environmental design firms based in Raleigh, United States. Start with a free account, no credit card.

Download this list →

Related lists

Environmental design firms by geography

Browse the directory

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.