Company lists · Data refreshed September 2026

Top 25 Sustainable design firms based in Philadelphia, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 62 companies tracked

RevenueBase identified 62 company matches for sustainable design firms associated with Philadelphia, United States as of September 2026 and tracks 504 professional contacts across them, including 261 with verified work emails. Across the United States, New York is the largest hub for this category (322 companies); Philadelphia has 62.

This list covers company matches for sustainable design firms associated with Philadelphia, 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 22, 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 22, 2026 How this list was built

62Companies

504Contacts tracked

261Verified emails

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The 25 largest sustainable design firms based in Philadelphia, United States

Ranked by team size

Top 25 of 62 company matches for sustainable design firms based in Philadelphia, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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	Kierantimberlake	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	51-200	74 contacts →
	Exact match “The alchemy of art, science, analysis, and intuition with regard to the built environment is our core mission.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	Digsau	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	41 contacts →
	Exact match “DIGSAU practices contemporary architecture, urbanism and environmental design.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	IEI Group, LTD	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	33 contacts →
	Exact match “IEI is a nationally recognized, award-winning, 20-person architecture, interior design and facilities planning firm based in Northern Liberties for last 20 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4	CLR Design	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	26 contacts →
	Exact match “We are a team of passionate professionals who bring varied experience and steadfast dedication to every project.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	PZS Architects	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	24 contacts →
	Exact match “PZS Architects provides a complete range of architectural, interior design and planning services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	CBP Architects	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	24 contacts →
	Exact match “CBP Architects is an architecture firm providing design services to governmental, educational, institutional and private sector clients.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7	RE Vision Architecture	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	19 contacts →
	Exact match “Re:Vision is a deep green architecture and sustainability consulting practice dedicated to the design of high-performance buildings and sustainable communities.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	David Rubin Land Collective	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	16 contacts →
	Exact match “DAVID RUBIN Land Collective is driven by design empathy and emphasizes holistically-sustainable principles, with social sustainability leading the design effort.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9	SMP Architects	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	15 contacts →
	Exact match “Attention to environmental concerns and historic, cultural, and architectural contexts are the hallmarks of our firm.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	Tantillo Architecture LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	14 contacts →
	Exact match “Tantillo Architecture is a high energy generalist architectural design firm focused on bringing innovative design strategies to commercial and residential clients.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	Plant Group	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	14 contacts →
	Exact match “PLANT Group (People Learning About Nature Together) is an ecological design and engineering firm connecting humans and nature to enable climate adaptation and mitigation work.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12	O Z Collaborative	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	11-50	12 contacts →
	Exact match “Rooted in West Philadelphia, O Z Collaborative creates architecture grounded in the complex realities of our clients, their stakeholders, and the communities they serve.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	Studio Sustena	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	9 contacts →
	Exact match “Studio Sustena (formerly called Roofmeadow and Roofscapes, Inc.) provides "integrated site design," which blends landscape architecture with civil engineering to create…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Toner Architects	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	8 contacts →
	Exact match “Toner architects was founded with one singular goal in mind; collaborate with clients who enjoy the process of design, architecture, and building.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Krieger Associates Architects INC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	8 contacts →
	Exact match “Krieger + Associates Architects Inc is an award-winning Philadelphia firm providing architectural, planning, and interior design services to residential, institutional, and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16	Viridian Landscape Studio	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	5 contacts →
	Exact match “Viridian Landscape Studio is dedicated to the careful design and development of landscape architectural and ecological planning projects.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	Onion Flats Architecture	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	5 contacts →
	Exact match “Onion Flats Architecture focuses on community development, multidisciplinary thinking and making, high-performance building technologies and alternative construction methodologies.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	Millan Architects	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “Millan Architects is an architecture firm based in Philadelphia devoted to crafting thoughtful spaces of enduring beauty, lasting value and environmental sustainability.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19	Stanev Potts Architects	Exact match	Philadelphia, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “At Stanev Potts Architects, we are deeply committed to our vocation and to our clients.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	KJO Architecture LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “KJO Architecture LLC is an architecture and planning studio in Philadelphia, Pennsylvania.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Woodcock Design	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “Based out of 1518 Walnut St Suite 1308, Philadelphia, Woodcock Design is a full service, end-to-end architecture, planning and urban design firm.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Boyer Sudduth Environmental Consultants, LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “At Boyer Sudduth Environmental Consultants, we believe schools and businesses can best achieve their sustainability goals when operations, institutional behavior, curriculum &…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23	Mark B. Thompson Associates, PC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “Mark B.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	Avlv Architecture & Development	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “We are AVLV (Avolve), a vertically integrated sustainable architecture, development, and real estate firm built to do things differently.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25	Studio 111 Architecture	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “Studio Architecture is a Philadelphia based design firm, providing service throughout the region.” Recorded in the RevenueBase company graph · Sep 22, 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 “sustainable 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 25 of 62 sustainable design firms based in Philadelphia, United States

See the full list, filter by size, metro and specialty, and access 261 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable design firms based in Philadelphia, United States at a glance

As of Sep 22, 2026

51.8%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

Sep 22, 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 Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 62 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 Philadelphia, United States whose business descriptions match “sustainable 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 261 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 22, 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.

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

How many sustainable design firms are there based in Philadelphia, United States?

RevenueBase identified 62 company matches for sustainable design firms associated with Philadelphia, 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?

Kierantimberlake 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 sustainable design firms?

New York leads the United States with 322 company records, followed by Los Angeles (146) and Seattle (121). Philadelphia has 62.

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 261 professional contacts with verified work emails tracked across these 62 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 22, 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.