Company lists · Data refreshed September 2026

Top 21 Mechanical contractors based in Portland, United States

Name: Mechanical contractors 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 41 companies tracked

RevenueBase identified 41 company matches for mechanical contractors associated with Portland, United States as of September 2026 and tracks 4,031 professional contacts across them, including 1,527 with verified work emails. Across the United States, Houston is the largest hub for this category (201 companies); Portland has 41.

This list covers company matches for mechanical 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 September 17, 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 Sep 17, 2026 How this list was built

41Companies

4,031Contacts tracked

1,527Verified emails

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The 21 largest mechanical contractors based in Portland, United States

Ranked by team size

Top 21 of 41 company matches for mechanical contractors based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Johnstone Supply	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,664 contacts →
	Exact match “Making it easier for HVACR contractors to do business.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Harder Mechanical Contractors, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	1,001-5,000	656 contacts →
	Exact match “Harder Mechanical is a nationally recognized contractor known for its strong safety culture, ability to meet demanding schedules, commitment to quality, and consistent delivery of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Charter Mechanical Contractors, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	201-500	151 contacts →
	Exact match “Charter Mechanical is a leading and respected provider of mechanical and process piping services in the Northwest.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Alliant Systems	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	201-500	116 contacts →
	Exact match “Alliant Systems is a leading mechanical contractor in the Pacific Northwest.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	American Heating INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	201-500	69 contacts →
	Exact match “American Heating, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Hunter-Davisson, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Arctic Sheet Metal	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match “Founded in 1977, Arctic Sheet Metal, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Johnson AIR Products	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Wholesale Distributor and Manufacturer's Representative of Heating, Ventilation & Air Conditioning (HVAC) Systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Pyramid Heating & Cooling	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	31 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 · Sep 17, 2026 · View company records in RevenueBase
10	Smart Local 16	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	1,001-5,000	21 contacts →
	Exact match “SMART Local 16 members and contractors are committed to providing customer satisfaction on every job through the highest quality, value, integrity, safety, and craftsmanship.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	W.H. Demmons, INC	Exact match	Portland, ME, United StatesHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “W.H.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Mechanical Services, Inc. Maine Controls	Exact match	Portland, ME, United StatesHQ recorded Sep 17, 2026	51-200	16 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 · Sep 17, 2026 · View company records in RevenueBase
13	Caliber Plumbing & Mechanical INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	15 contacts →
	Exact match “Locally owned and operated, Caliber Plumbing & Mechanical has been offering the highest level of plumbing and mechanical work for the Portland area for over 10 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Carter Mechanical	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Geared Mechanical Incorporated	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	12 contacts →
	Exact match “Geared Mechanical works in multiple sectors including Industrial Manufacturing, Paper & Pulp, Power Generation, Aerospace & Automotive, Semiconductor, Turbine Work, Commercial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Climate Control Hvac	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “From our beginning in 1989 until today, Climate Control has been providing the highest quality of heating and cooling services for Portland, OR.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Cornel's Plumbing, Heating & AIR	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “About Cornel’s Plumbing Heating & Air Conditioning Our founder, Cornel Morariu, has more than 40 years of experience in the plumbing industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Andersen Mechanical, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “Andersen Mechanical - Portland Oregon - Commercial HVAC - Plumber Services - AC Repair - MWESB Certified: Minorites, Women and Emerging Small Businesses” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Summit Contracting, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	3 contacts →
	Exact match “Summit Contracting, LLC is a construction company delivering high-quality service – cost-efficiently and safely – time and again.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Green BOX Mechanical	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match “Green Box Mechanical is a completely new kind of contracting company, created in response to the demand for single source, direct-to-consumer services - Plumbing, HVAC and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	CC Mechanical	Exact match	Portland, ME, United StatesHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “CC Mechanical is a standard and licensed HVAC installation, servicing and maintenance company located in Portland, Maine.” Recorded in the RevenueBase company graph · Sep 17, 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 “mechanical 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 21 of 41 mechanical contractors based in Portland, United States

See the full list, filter by size, metro and specialty, and access 1,527 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mechanical contractors based in Portland, United States at a glance

As of Sep 17, 2026

37.9%Verified-email coverage

98.3Average contacts per company

11-50Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 41 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 “mechanical 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 1,527 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 September 17, 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.

Mechanical 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 “mechanical contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical contractors are there based in Portland, United States?

RevenueBase identified 41 company matches for mechanical contractors associated with Portland, United States as of September 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?

Johnstone Supply 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 mechanical contractors?

Houston leads the United States with 201 company records, followed by New York (145) and Jacksonville (87). Portland has 41.

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 1,527 professional contacts with verified work emails tracked across these 41 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 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 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.