Company lists · Data refreshed October 2026

Top 25 Janitorial contractors based in Houston, United States

Name: Janitorial contractors based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 17, 2026 153 companies tracked

RevenueBase identified 153 company matches for janitorial contractors associated with Houston, United States as of October 2026 and tracks 949 professional contacts across them, including 216 with verified work emails. Across the United States, New York is the largest hub for this category (219 companies); Houston follows with 153.

This list covers company matches for janitorial contractors associated with Houston, 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 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 Oct 17, 2026 How this list was built

153Companies

949Contacts tracked

216Verified emails

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The 25 largest janitorial contractors based in Houston, United States

Ranked by team size

Top 25 of 153 company matches for janitorial contractors based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 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	Mclemore Building Maintenance, INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	501-1,000	176 contacts →
	Exact match “McLemore Building Maintenance was founded in 1970 and thanks to the dedication of our team who earn our clients’ business each and every day.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2	DTK Janitorial & Landscaping	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1,001-5,000	72 contacts →
	Exact match “Founded in 1996, DTK is a Texas-based facility services company dedicated to enhancing facilities and lives.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3	Aztec Facility Services	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	501-1,000	72 contacts →
	Exact match “Aztec Facility Services is your Facility Management Solutions!” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4	Ambassador Services, LLC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	501-1,000	61 contacts →
	Exact match “Ambassador Services has decades of experience in providing reliable facility maintenance and grounds services designed to bring you peace of mind.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5	Jobs-Amst	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	34 contacts →
	Exact match “Since 1970, JOBS-AMST has helped building owners and property managers across Houston and throughout Texas protect, preserve, and extend the life of their buildings.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6	Lighthouse Environmental Services, INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	30 contacts →
	Exact match “Lighthouse Environmental Services, Inc is an innovative service provider that continually offers the highest quality personnel and specialized equipment.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7	Kingsclean	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	24 contacts →
	Exact match “Industry Leader in the Science of Intelligent Cleaning for Health.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8	bldg.works	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1,001-5,000	23 contacts →
	Exact match “We are more than just another bldg maintenance or janitorial services contractor.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9	1 Stone Solutions, LLC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	20 contacts →
	Exact match “1 Stone is professionalizing the construction cleaning and floor care industry.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10	Maintenance Of Houston, INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	201-500	17 contacts →
	Exact match “For over forty years, Maintenance of Houston, Inc.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11	Arcot Manufacturing Corp	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	16 contacts →
	Exact match “Arcot Manufacturing Corporation has been manufacturing cleaning chemicals in the USA for the commercial, industrial and institutional markets for more than 60 years.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12	Goldstone Exterior Services	Exact match	Houston, United StatesHQ recorded Oct 17, 2026	11-50	10 contacts →
	Exact match “Goldstone Exterior Services is a leading, full service provider of quality exterior preservation and maintenance services, serving the needs of asset owners, operators and…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13	Four Analytics, INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	8 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14	Clean Smarts	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1-10	7 contacts →
	Exact match “Clean Smarts is a janitorial management software for commercial cleaning teams in need of a high-efficiency operations system to support growth.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15	Building Professionals Of Texas Janitorial Service	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	7 contacts →
	Exact match “Building Professionals of Texas is a full service commercial cleaning company with specialty verticals for the most professional and thorough clean.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16	City Wide Facility Solutions	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	6 contacts →
	Exact match “City Wide currently maintains over 8,700 facilities across the USA which represents over 30 million square feet of nightly cleaning.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17	Omni Special Services	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	6 contacts →
	Exact match “At Omni Special Services, we specialize in providing high-quality facility support services tailored to meet the unique needs of our clients across industries.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18	Namco Mfg, INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	6 contacts →
	Exact match “NAMCO MFG INC is located in Houston, Texas and is a manufacturing company that designs, invents, innovates and manufacturers Janitorial Supplies, Parts, Cleaning Chemicals, as…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19	Cleaning PRO Group	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	51-200	6 contacts →
	Exact match “CPG - your premier partner in commercial cleaning services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20	Detergent Services INC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	5 contacts →
	Exact match “Since 1976, Detergent Services, Inc.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21	Sourcefm	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1-10	4 contacts →
	Exact match “SourceFM specializes in providing life safety, maintenance, and repair for commercial buildings and healthcare facilities including hospitals, surgery centers, dialysis clinics…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22	TCP Facility Services	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1-10	4 contacts →
	Exact match “Welcome to TCP Facility Services, your premier choice when you need a professional cleaning company for your commercial property in the greater Phoenix, Arizona and Houston, Texas…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23	Really Kleen Facility Services	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1-10	4 contacts →
	Exact match “Really Kleen provides unparalleled deep cleaning services for commercial clients throughout the greater Houston area.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24	ACS Maintenance Solutions	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	11-50	4 contacts →
	Exact match “Commercial maintenance company specializing in the cleaning and restoration of multiple surfaces throughout your work space.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25	Morgan Services Group LLC	Exact match	Houston, TX, United StatesHQ recorded Oct 17, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 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 “janitorial 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 25 of 153 janitorial contractors based in Houston, United States

See the full list, filter by size, metro and specialty, and access 216 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Janitorial contractors based in Houston, United States at a glance

As of Oct 17, 2026

22.8%Verified-email coverage

6.2Average contacts per company

11-50Median size (employees)

Oct 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 153 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 Houston, United States whose business descriptions match “janitorial 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 216 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 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.

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

How many janitorial contractors are there based in Houston, United States?

RevenueBase identified 153 company matches for janitorial contractors associated with Houston, 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?

Mclemore Building Maintenance, INC 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 janitorial contractors?

New York leads the United States with 219 company records, followed by Houston (153) and Chicago (124).

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 216 professional contacts with verified work emails tracked across these 153 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 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.