Company lists · Data refreshed September 2026

Top 25 Urban design firms based in Portland, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 81 companies tracked

RevenueBase identified 81 urban design firms headquartered in Portland, United States as of September 2026 and tracks 2,591 professional contacts across them, including 1,532 with verified work emails. New York is the largest hub.

This list covers urban design firms headquartered in Portland, 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 22, 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 22, 2026 86% judged on-target in blind review

81Companies

2,591Contacts tracked

1,532Verified emails

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The 25 largest urban design firms based in Portland, United States

Ranked by team size

Top 25 of 81 urban design firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to urban 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	David Evans And Associates, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	501-1,000	1,031 contacts →
	Partial evidence “Since its founding in 1976 in Portland, Oregon, DEA has become a recognized leader for progressive and sustainable design and management solutions for complex transportation, land…” Source: RevenueBase Database · checked Sep 22, 2026
2	OTAK	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	201-500	341 contacts →
	Indirect evidence “Otak values people, both those in our workplace and those that are impacted by the projects we undertake.” Source: RevenueBase Database · checked Sep 22, 2026
3	Alta Planning Design	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	252 contacts →
	Indirect evidence “Alta is a consulting firm with a mission to create active communities where bicycling and walking are safe, healthy, fun, and normal daily activities.” Source: RevenueBase Database · checked Sep 22, 2026
4	Sera Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	134 contacts →
	Partial evidence “Portland, OR + Oakland, CA SERA is a firm of dynamic thinkers, collaborators and creators who want to shape the world through smart planning and enduring design.” Source: RevenueBase Database · checked Sep 22, 2026
5	Hennebery Eddy Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	113 contacts →
	Partial evidence “We are thoughtful architects, planners, interior designers, and preservationists who create spaces where people gather, work, learn, and recreate.” Source: RevenueBase Database · checked Sep 22, 2026
6	Harper Houf Peterson Righellis INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	101 contacts →
	Indirect evidence “Founded in Portland, Oregon in 1990, Harper Houf Peterson Righellis Inc.” Source: RevenueBase Database · checked Sep 22, 2026
7	Walker Macy	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	64 contacts →
	Strong evidence “Walker Macy is recognized as a leader in landscape architecture, urban design and planning.” Source: RevenueBase Database · checked Sep 22, 2026
8	Greenworks	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	52 contacts →
	Indirect evidence “Since 1987 GreenWorks has provided a broad range of services for clients in the Pacific Northwest and beyond.” Source: RevenueBase Database · checked Sep 22, 2026
9	SRG Cannondesign	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “Founded in 1972, SRG Partnership is a full-service architecture, planning and interiors firm with offices in Portland, Oregon, and Seattle, Washington.” Source: RevenueBase Database · checked Sep 22, 2026
10	Lever Architecture	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “LEVER Architecture, based in Portland, Oregon, and Los Angeles, California, is at the forefront of design excellence and material innovation.” Source: RevenueBase Database · checked Sep 22, 2026
11	Acorn Engineering, INC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
12	YGH	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	32 contacts →
	Indirect evidence “Integrus Architecture and YGH Architecture came together in June 2022 to practice as one unified firm.” Source: RevenueBase Database · checked Sep 22, 2026
13	Cida Architecture Engineering Planning Interiors	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	30 contacts →
	Indirect evidence “CIDA Inc.” Source: RevenueBase Database · checked Sep 22, 2026
14	Clark Kjos Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	25 contacts →
	Partial evidence “CKA is a unique group of professionals highly focused on architecture for health (with a wide range of project types), healthy environments, sustainable design practices…” Source: RevenueBase Database · checked Sep 22, 2026
15	Mayer Reed, INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	24 contacts →
	Strong evidence “Based in Portland, Oregon, Mayer/Reed is a nationally recognized, interdisciplinary design firm providing landscape architecture, urban design and visual communications.” Source: RevenueBase Database · checked Sep 22, 2026
16	PLACE	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	22 contacts →
	Strong evidence “Landscape Architecture, Planning, Art, Urban Design Award-winning and impact-driven global landscape architecture studio, PLACE designs experiences rooted in stewardship…” Source: RevenueBase Database · checked Sep 22, 2026
17	Cascadia Partners	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	20 contacts →
	Partial evidence “Cascadia Partners are a multi-disciplinary team with decades of experience in planning, design, development finance, sustainability, project management, and community engagement.” Source: RevenueBase Database · checked Sep 22, 2026
18	Knot Studio	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “Knot Studio is a team of wayfinders, place makers, and change agents committed to shaping the human experience of place and reinforcing the natural systems that sustain all life.” Source: RevenueBase Database · checked Sep 22, 2026
19	Simons Architects	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “Simons Architects was originally established in 1995.” Source: RevenueBase Database · checked Sep 22, 2026
20	C2k Architecture, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Since 2010, C2K Architecture has been shaping spaces that inspire and endure.” Source: RevenueBase Database · checked Sep 22, 2026
21	Waterleaf Architecture	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Waterleaf has been active in the Northwest since 1952, focusing on four areas - commercial, transportation/industrial, medical/dental, and community.” Source: RevenueBase Database · checked Sep 22, 2026
22	Shapiro Didway	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “We were co-founded in 2007 by Principal Emeritus Steve Shapiro and Managing Principal Blair Didway, with long-time employee and Landscape Architect Nate Otani named Principal in…” Source: RevenueBase Database · checked Sep 22, 2026
23	Pioneer Design Group, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	11 contacts →
	Partial evidence “Pioneer Design Group, Inc, located in Portland, Oregon, provides civil engineering, land use planning, land surveying, landscape architecture and development services.” Source: RevenueBase Database · checked Sep 22, 2026
24	Winterbrook Planning	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Indirect evidence “Winterbrook Planning is a land use and environmental planning company based out of Portland, Oregon, United States.” Source: RevenueBase Database · checked Sep 22, 2026
25	DAO Architecture	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Strong evidence “DAO Architecture was founded on the belief that successful built spaces derive from a rigorous integration of architectural, interior, landscape, and urban design.” Source: RevenueBase Database · checked Sep 22, 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: urban 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 urban design firms.
Partial evidence: Its own public description names part of urban design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name urban 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 81 urban design firms based in Portland, United States

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Urban design firms based in Portland, United States at a glance

As of Sep 22, 2026

59.1%Verified-email coverage

32.0Average contacts per company

1-10Median size (employees)

345.7%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 81 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 urban 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 Portland, United States whose own description of what they do matches “urban 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 urban 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 urban design firms, and records with no verified work email. Companies headquartered outside Portland 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, 1,532 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 22, 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.

Urban 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 urban 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 urban design firms are there based in Portland, United States?

RevenueBase identified 81 urban design firms headquartered in Portland, 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?

David Evans And Associates, INC, headquartered in Portland, tops this list with the largest team on record.

Which city has the most urban design firms?

New York leads with 280 headquartered companies, followed by Los Angeles (115) and Seattle (103).

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 1,532 verified decision-maker contacts tracked across these 81 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 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 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.