Company lists · Data refreshed September 2026

Top 25 Master planning firms worldwide

RevenueBase identified 17,236 master planning firms worldwide as of September 2026 and tracks 211,581 professional contacts across them, including 80,200 with verified work emails. The United States is the largest market and London the largest hub.

This list covers master planning firms worldwide, 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. Country and city lists for master planning firms follow the table.

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 20, 2026 86% judged on-target in blind review
17,236Companies
211,581Contacts tracked
80,200Verified emails
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The 25 largest master planning firms worldwide

Ranked by team size
Top 25 of 17,236 master planning firms worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to master planning 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceRaleigh, NC, United StatesHQ checked Sep 20, 20265,001-10,00010,117 contacts →

Partial evidence

“Kimley-Horn is one of the nation’s premier planning and design consulting firms.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceSafat, KuwaitHQ checked Sep 20, 20261,001-5,0003,038 contacts →

Indirect evidence

“From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceFairfax, VA, United StatesHQ checked Sep 20, 20261,001-5,0002,795 contacts →

Indirect evidence

“Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0002,614 contacts →

Indirect evidence

“HOK is a global interdisciplinary design firm.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0001,967 contacts →

Indirect evidence

“Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceAmsterdam, ON, NetherlandsHQ checked Sep 20, 20261,001-5,0001,682 contacts →

Partial evidence

“IBI Group is a technology-driven design firm with global architecture, engineering, planning and technology expertise.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceDallas, TX, United StatesHQ checked Sep 20, 20261,001-5,0001,414 contacts →

Indirect evidence

“Corgan is an employee-owned architecture and design firm with 22 locations and more than 1,300 team members globally.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceHerndon, VA, United StatesHQ checked Sep 20, 2026501-1,0001,136 contacts →

Indirect evidence

“Bohler is a land development consulting and technical design firm that helps developers, owners and other real estate professionals identify and act on opportunities and…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 20261,001-5,0001,112 contacts →

Indirect evidence

“Ranked No.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceSandvika, NorwayHQ checked Sep 20, 20261,001-5,0001,074 contacts →

Indirect evidence

“Asplan Viak er et av Norges ledende rådgivnings-selskaper innen plan, arkitektur- og ingeniørfag.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceToronto, ON, CanadaHQ checked Sep 20, 2026501-1,000907 contacts →

Indirect evidence

“NORR is a global team of 750 architects, engineers, planners, and interior designers creating design strategies and solutions that express the unique vision of every project.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceCalgary, CA, CanadaHQ checked Sep 20, 2026501-1,000905 contacts →

Indirect evidence

“Hello.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSyosset, NY, United StatesHQ checked Sep 20, 20261,001-5,000874 contacts →

Indirect evidence

“The LiRo Group and Hill International’s Northeast Region have merged to become LiRo-Hill, upholding the firms’ strong, long-standing reputations as leaders in the field, and…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceKamloops, BC, CanadaHQ checked Sep 20, 2026201-500806 contacts →

Indirect evidence

“Together, we are building vibrant communities UrbanSystems® is the collective passion of great people.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceJeddah, Saudi ArabiaHQ checked Sep 20, 2026501-1,000763 contacts →

Indirect evidence

“Architects and Engineers Saudi Diyar Consultants is one of the leading multidiscipline design firms in the Middle East with a diverse portfolio of commercial, institutional…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 20, 2026501-1,000755 contacts →

Indirect evidence

“AE7 is a multi-disciplinary firm that believes in a holistic approach to design and the transformational power of architecture to create thoughtful and meaningful solutions in the…”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceKong, Hong KongHQ checked Sep 20, 20261,001-5,000738 contacts →

Indirect evidence

“Headquartered in Hong Kong, P&T Group is one of the world's longest-established architecture and engineering practices.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceTucson, AZ, United StatesHQ checked Sep 20, 2026501-1,000707 contacts →

Indirect evidence

“M3 is a privately held full service design firm.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceLivonia, MI, United StatesHQ checked Sep 20, 2026501-1,000701 contacts →

Indirect evidence

“There are many AEP firms.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceMelville, NY, United StatesHQ checked Sep 20, 2026501-1,000692 contacts →

Indirect evidence

“About H2M H2M architects + engineers is a multi-disciplinary professional consulting and design firm, proud of its long history of client service and consistent ability to meet…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 20, 2026201-500620 contacts →

Indirect evidence

“We are makers.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceBillings, MT, United StatesHQ checked Sep 20, 2026201-500618 contacts →

Indirect evidence

“Cushing Terrell was founded in 1938 by architects Ralph Cushing and Everett Terrell.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceTroy, NY, United StatesHQ checked Sep 20, 2026n/a610 contacts →

Partial evidence

“architecture+ is a design and service-oriented architectural and planning firm located in Troy in New York's Capital Region.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceLubbock, TX, United StatesHQ checked Sep 20, 2026501-1,000609 contacts →

Indirect evidence

“We are a full-service design firm of extraordinary planners, designers, architects, and engineers.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceBaltimore, MD, United StatesHQ checked Sep 20, 2026501-1,000601 contacts →

Partial evidence

“Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 17,236 master planning firms worldwide

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Master planning firms worldwide at a glance

As of Sep 20, 2026
37.9%Verified-email coverage
12.3Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
10,920
11-50
4,913
51-200
982
201-500
217
501-1,000
49
1,001-5,000
29
5,001-10,000
3
10001+
8

Email recency is reported on each country list linked below.

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 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.
Coverage
Every country. Country and city lists for master planning firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “master planning 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 master planning 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 master planning firms, and records with no verified work email.
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, 80,200 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 firms by location

104 lists · largest first

Every Master planning firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 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 master planning firms are there worldwide?

RevenueBase identified 17,236 master planning firms worldwide 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?

Kimley-Horn, headquartered in Raleigh, tops this list with the largest team on record.

Which country has the most master planning firms?

The United States leads with 4,294 companies, followed by Germany (1,400) and France (973). Every master planning firms list by country and city is linked on this page.

Which city has the most master planning firms?

London leads with 177 headquartered companies, followed by New York (170) and Paris (170).

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 80,200 verified decision-maker contacts tracked across these 17,236 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.