Company lists · Data refreshed October 2026

Top 12 Commercial property maintenance contractors based in Portland, United States

Name: Commercial property maintenance contractors based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 26 companies tracked

RevenueBase identified 26 company matches for commercial property maintenance contractors associated with Portland, United States as of October 2026 and tracks 347 professional contacts across them, including 125 with verified work emails. Across the United States, New York is the largest hub for this category (142 companies); Portland has 26.

This list covers company matches for commercial property maintenance contractors associated with Portland, 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 October 10, 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 Oct 10, 2026 How this list was built

26Companies

347Contacts tracked

125Verified emails

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The 12 largest commercial property maintenance contractors based in Portland, United States

Ranked by team size

Top 12 of 26 company matches for commercial property maintenance contractors based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	Cambridge Real Estate Services	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	201-500	109 contacts →
	Exact match “Cambridge Real Estate Services knows how important an inspired living space is for you and your family.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Millennium Building Services	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	51-200	47 contacts →
	Exact match “Established in 1972, MBS today provides building services for properties ranging from suburban business parks to downtown high-rise buildings in the Greater Portland Metropolitan…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Atlas Management LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	51-200	36 contacts →
	Exact match “Managing properties involves many different tasks.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Pyramid Heating & Cooling	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	11-50	34 contacts →
	Exact match “Since 2004, Pyramid Heating & Cooling has been focused on one goal: improving lives through ideal indoor environments.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Commercial Properties Management	Exact match	Portland, ME, United StatesHQ recorded Oct 10, 2026	11-50	21 contacts →
	Exact match “Our management services strengthen every aspect of your valuable asset.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Atlas Facilities Maintenance, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	51-200	16 contacts →
	Exact match “In today's market businesses must stay nimble and prepared to scale up or down quickly.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Mechanical Services, Inc. Maine Controls	Exact match	Portland, ME, United StatesHQ recorded Oct 10, 2026	51-200	14 contacts →
	Exact match “Mechanical Services offers a complete range of services to ensure that the indoor environments of our clients’ buildings are healthy, comfortable and energy efficient.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	ALL American Building Services	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	51-200	14 contacts →
	Exact match “We are your regional leader in commercial janitorial and facilities services solutions, providing the very best in customer service and customer satisfaction for all your…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Cleansolution Services	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	11-50	13 contacts →
	Exact match “Cleansolution is a janitorial and commercial cleaning company with offices in Portland, Oregon, and Northern Virginia.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	HMS Commercial Service, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	51-200	6 contacts →
	Exact match “HMS was founded in 1983 with principles that are customer first, meaning we believe that serving our customer is the most important thing.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Descansa Property Management	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	1-10	3 contacts →
	Exact match “Descansa is a Portland-based property management company guided by a “people first” approach.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Cleaner Choice Building Solutions	Exact match	Portland, OR, United StatesHQ recorded Oct 10, 2026	11-50	3 contacts →
	Exact match “Cleaner Choice Building Solutions is a Veteran owned Facilities Services company specializing in Janitorial and Commercial Cleaning.” Recorded in the RevenueBase company graph · Oct 10, 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 “commercial property maintenance contractors”. 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 12 of 26 commercial property maintenance contractors based in Portland, United States

See the full list, filter by size, metro and specialty, and access 125 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial property maintenance contractors based in Portland, United States at a glance

As of Oct 10, 2026

36.0%Verified-email coverage

13.3Average contacts per company

11-50Median size (employees)

Oct 10, 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 26 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 Portland, United States whose business descriptions match “commercial property maintenance contractors” 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 125 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 October 10, 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.

Commercial property maintenance contractors 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 “commercial property maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial property maintenance contractors are there based in Portland, United States?

RevenueBase identified 26 company matches for commercial property maintenance contractors associated with Portland, United States as of October 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?

Cambridge Real Estate Services 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 commercial property maintenance contractors?

New York leads the United States with 142 company records, followed by Houston (123) and Dallas (82). Portland has 26.

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 125 professional contacts with verified work emails tracked across these 26 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 October 10, 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.