Company lists · Data refreshed September 2026

Top 25 Landscape architecture firms based in Portland, United States

Name: Landscape architecture 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 17, 2026 71 companies tracked

RevenueBase identified 71 landscape architecture firms headquartered in Portland, United States as of September 2026 and tracks 1,038 professional contacts across them, including 538 with verified work emails. New York is the largest hub.

This list covers landscape architecture 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 17, 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 17, 2026 86% judged on-target in blind review

71Companies

1,038Contacts tracked

538Verified emails

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The 25 largest landscape architecture firms based in Portland, United States

Ranked by team size

Top 25 of 71 landscape architecture firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to landscape 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	OTAK	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
2	Sera Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	134 contacts →
	Indirect 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 17, 2026
3	Walker Macy	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
4	Greenworks	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
5	SRG Cannondesign	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	46 contacts →
	Partial 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 17, 2026
6	Acorn Engineering, INC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
7	Landscape East & West	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	33 contacts →
	Partial evidence “Since 1980, Landscape East & West has been one of the leaders in creating and maintaining unique, award-winning outdoor living spaces in the Portland Metro area.” Source: RevenueBase Database · checked Sep 17, 2026
8	YGH	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	32 contacts →
	Partial evidence “Integrus Architecture and YGH Architecture came together in June 2022 to practice as one unified firm.” Source: RevenueBase Database · checked Sep 17, 2026
9	Mayer Reed, INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
10	Drake's 7 Dees Landscaping	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	23 contacts →
	Indirect evidence “At Drakes’ 7 Dees we know what an impact our outdoor spaces can have on our lives.” Source: RevenueBase Database · checked Sep 17, 2026
11	Luma Lighting Design	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “At LUMA, we’re focused on our clients and a shared vision of great architecture.” Source: RevenueBase Database · checked Sep 17, 2026
12	PLACE	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
13	Knot Studio	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 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 17, 2026
14	Simons Architects	Indirect evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “Simons Architects was originally established in 1995.” Source: RevenueBase Database · checked Sep 17, 2026
15	Aceto Kimball Landscape Architecture	Strong evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	1-10	13 contacts →
	Strong evidence “AKLA is a Portland, Maine + Jackson, New Hampshire based landscape architecture, urban design, and graphics studio founded on a devotion to craft, curiosity, and creative…” Source: RevenueBase Database · checked Sep 17, 2026
16	Shapiro Didway	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial 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 17, 2026
17	Pioneer Design Group, INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong 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 17, 2026
18	Premier Backyard Living	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “Paradise Restored Landscaping has been servicing clients in the Portland Oregon area since 1995.” Source: RevenueBase Database · checked Sep 17, 2026
19	Blessing Landscapes	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “Our mission: To design and install a landscape environment that enhances your daily life.” Source: RevenueBase Database · checked Sep 17, 2026
20	BIG SKY Landscaping INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Ground Workshop	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	1-10	5 contacts →
	Strong evidence “Established in 2019, Ground Workshop is an award-winning landscape architecture studio based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 17, 2026
22	Lango Hansen Landscape Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “At Lango Hansen Landscape Architects, design is an ongoing process of investigation, discovery and collaboration driven by the context of the site.” Source: RevenueBase Database · checked Sep 17, 2026
23	Grasstains Landscaping	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “At Grasstains, we're proud to offer our expertise in landscaping to both residential homes and commercial property clients across Portland.” Source: RevenueBase Database · checked Sep 17, 2026
24	Murase Associates	Strong evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Strong evidence “Murase Associates is a landscape architecture studio based in Portland, Oregon and Seattle, Washington.” Source: RevenueBase Database · checked Sep 17, 2026
25	Huntington & Kiest Landscape Architects	Indirect evidence	Portland, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Huntington & Kiest was founded in 1979.” Source: RevenueBase Database · checked Sep 17, 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: landscape 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 landscape architecture firms.
Partial evidence: Its own public description names part of landscape architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name landscape 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 25 of 71 landscape architecture firms based in Portland, United States

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Landscape architecture firms based in Portland, United States at a glance

As of Sep 17, 2026

51.8%Verified-email coverage

14.6Average contacts per company

1-10Median size (employees)

271.8%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 71 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 landscape 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 Portland, United States whose own description of what they do matches “landscape 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 landscape 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 landscape architecture 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, 538 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 17, 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.

Landscape 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 landscape 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 landscape architecture firms are there based in Portland, United States?

RevenueBase identified 71 landscape architecture 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?

OTAK, headquartered in Portland, tops this list with the largest team on record.

Which city has the most landscape architecture firms?

New York leads with 193 headquartered companies, followed by Los Angeles (122) and Austin (110).

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 538 verified decision-maker contacts tracked across these 71 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 17, 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.