Company lists · Data refreshed September 2026
Top 25 Master planning companies based in Seattle, United States
RevenueBase identified 38 master planning companies headquartered in Seattle, United States as of September 2026 and tracks 1,653 professional contacts across them, including 1,051 with verified work emails. New York is the largest hub.
This list covers master planning companies headquartered in Seattle, 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 20, 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.
The 25 largest master planning companies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 880 contacts → | ||||
Indirect evidence “At Parametrix, we help our clients imagine what's possible.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 170 contacts → | ||||
Partial evidence “About LMN Architects Seattle-based LMN Architects specializes in the planning and design of significant public and private facilities, including convention centers, cultural arts…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 115 contacts → | ||||
Partial evidence “GGLO is an integrated design firm that provides architecture, urban design, planning, research, interior design, and landscape architecture to clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 104 contacts → | ||||
Partial evidence “The Miller Hull Partnership is an architecture and planning firm rooted in environmentally-responsible designs that create a regenerative and inclusive future.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 66 contacts → | ||||
Indirect evidence “KPG was initially formed in 1990 by a team of engineers, architects, landscape architects, and urban designers committed to and focused on community-driven public projects.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 34 contacts → | ||||
Partial evidence “HBB is a 20 person professional Landscape Architecture, Urban Design, and Planning firm located in Downtown Seattle.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 29 contacts → | ||||
Indirect evidence “SvR Design Company was founded in 1989 with a mission of providing innovation in the built environment.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Indirect evidence “At Weinstein AU, we look for ways to make our complex world a more balanced, inspirational, and productive place in which to live, work, and participate in civic life.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 25 contacts → | ||||
Indirect evidence “Tiscareno is a diverse, mid-size team of architects, designers, project managers, and support staff that designs multifamily, mixed-use, tenant improvement, transportation, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Indirect evidence “Founded in 1994, PACLAND is recognized as a leading site development consulting/engineering firm based in Seattle and serving the western US.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 contacts → | ||||
Indirect evidence “Uncommon Bridges builds more vibrant, just, and thriving communities by braiding inclusive process, consensus leadership, impactful organizations, and meaningful places into…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Indirect evidence “Schemata Workshop provides full architecture and urban design services on new and renovation projects from concept through construction.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Partial evidence “Geyer Coburn Hutchins (GCH) is a world class landscape architectural and land planning firm made up of professionals with diverse and complementary backgrounds.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence “Caron is a full-service architecture firm that provides simple, elegant designs for a wide variety of national and international clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “A vital component of Blueline's success is the staff - a select group of creative, talented and dedicated individuals who bring significant and varied professional experience, an…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Partial evidence “Allied8 is a values-based architecture and planning firm designing and advocating for urban development that supports environmental health, social and economic equity, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “Johnson Oaklief Architecture & Planning began with and continues to focus on the firms architectural practice of urban design and development, the design and planning of mixed-use…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Partial evidence “Heffron Transportation is a specialty transportation planning and engineering consulting firm founded in 1995 to help clients build better urban communities through creative and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Strong evidence “Provides a full range of architectural, interior design and master planning services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “HYBRID ARCHITECTS LLC is an architecture & planning company based out of 1205 E PIKE ST # 20, SEATTLE, Washington, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Partial evidence “atelierjones llc is an architecture & planning company based out of 911 Pine St, Seattle, Washington, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “MacLeod Reckord PLLC is a recognized Northwest design firm, established in 1968 and founded with the purpose of specializing in planning and design of public space.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Finne Architects is an Architecture and Planning company located in 217 Pine St Lbby, Seattle, Washington, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Architecture” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Bellaluc thinks differently - It is a smart design driven company with a desire to create places that enhance our lives and make the world a better place.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: master planning companies. 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 master planning companies.
- Partial evidence
- Its own public description names part of master planning companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name master planning companies. 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 38 master planning companies based in Seattle, United States
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Master planning companies based in Seattle, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 38 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 master planning companies, 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 Seattle, United States whose own description of what they do matches “master planning companies”. 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 master planning companies), 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 master planning companies, and records with no verified work email. Companies headquartered outside Seattle 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, 1,051 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 20, 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.
Master planning companies by metro in the United States
- Master planning companies in New York80
- Master planning companies in Houston44
- Master planning companies in Seattle38
- Master planning companies in San Francisco37
- Master planning companies in Los Angeles36
- Master planning companies in Denver35
- Master planning companies in Chicago34
- Master planning companies in Miami33
- Master planning companies in Boston32
- Master planning companies in Atlanta28
- Master planning companies in Dallas27
- Master planning companies in San Diego27
- Master planning companies in Washington26
- Master planning companies in Portland25
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 master planning companies, 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 master planning companies are there based in Seattle, United States?
RevenueBase identified 38 master planning companies headquartered in Seattle, 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?
Parametrix, headquartered in Seattle, tops this list with the largest team on record.
Which city has the most master planning companies?
New York leads with 80 headquartered companies, followed by Houston (44) and Seattle (38).
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 1,051 verified decision-maker contacts tracked across these 38 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 20, 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.
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