Company lists · Data refreshed October 2026

Top 25 Modular restroom manufacturers based in the United States

Name: Modular restroom manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 406 companies tracked

RevenueBase identified 406 company matches for modular restroom manufacturers associated with the United States as of October 2026 and tracks 5,355 professional contacts across them, including 1,833 with verified work emails. Houston is the largest hub.

This list covers company matches for modular restroom manufacturers associated with the 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 18, 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 18, 2026 How this list was built

406Companies

5,355Contacts tracked

1,833Verified emails

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The 25 largest modular restroom manufacturers based in the United States

Ranked by team size

Top 25 of 406 company matches for modular restroom manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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	Mobile Modular Management Corporation	Exact match	Livermore, CA, United StatesHQ recorded Oct 18, 2026	501-1,000	312 contacts →
	Exact match “At Mobile Modular, a division of McGrath RentCorp, we recognize the importance of finding not just a job, but a meaningful career.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2	Modspace	Exact match	Berwyn, PA, United StatesHQ recorded Oct 18, 2026	501-1,000	312 contacts →
	Exact match “Building on 50 years of experience in the modular construction industry, ModSpace is the American-owned market leader in time-tested product quality; new, innovative modular…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3	Pacific Mobile Structures, INC	Exact match	Chehalis, WA, United StatesHQ recorded Oct 18, 2026	201-500	165 contacts →
	Exact match “Pacific Mobile Structures sells and leases exceptional mobile office space and builds innovative modular structures with a relentless, customer-first commitment.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4	Pac-Van, INC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 18, 2026	201-500	159 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5	Silver Creek Modular	Exact match	Perris, CA, United StatesHQ recorded Oct 18, 2026	201-500	106 contacts →
	Exact match “Silver Creek Modular: Purpose-Build, People Powered.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6	Polyjohn Enterprises Corp	Exact match	Whiting, IN, United StatesHQ recorded Oct 18, 2026	51-200	97 contacts →
	Exact match “PolyJohn is the world's leading manufacturer of portable restrooms.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7	Whitley Manufacturing	Exact match	South Whitley, IN, United StatesHQ recorded Oct 18, 2026	51-200	74 contacts →
	Exact match “Whitley Manufacturing is one of the nation's leading manufacturers of custom commercial modular buildings serving an international clientele from Indiana and Washington.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8	Ramtech Building Systems, INC	Exact match	Mansfield, TX, United StatesHQ recorded Oct 18, 2026	51-200	69 contacts →
	Exact match “As a modular construction specialist for over 40 years, Ramtech has provided modular building solutions for educational institutions, healthcare providers, Fortune 500 companies…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9	PDM Constructors & Durapods	Exact match	North Wales, PA, United StatesHQ recorded Oct 18, 2026	201-500	64 contacts →
	Exact match “PDM Constructors is an all-in-one specialty contractor with multidisciplinary capabilities and a consistent record of safety.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10	Boxx Modular United States	Exact match	Fort Worth, TX, United StatesHQ recorded Oct 18, 2026	201-500	61 contacts →
	Exact match “BOXX Modular US rents, leases, and sells temporary and permanent modular buildings, including standard buildings ready for immediate delivery and custom-designed solutions.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11	Porta Kleen	Exact match	Lancaster, OH, United StatesHQ recorded Oct 18, 2026	201-500	59 contacts →
	Exact match “Boasting more than 25-years industry experience, Porta Kleen has built one of the largest rapid deployment fleets of portable showers, restrooms, and laundry trailers in the…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12	Madison Industries, INC	Exact match	Cerritos, CA, United StatesHQ recorded Oct 18, 2026	51-200	58 contacts →
	Exact match “At Madison Industries, we understand our customers’ needs and expectations are constantly evolving.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13	Homeway Commercial	Exact match	Deer Creek, IL, United StatesHQ recorded Oct 18, 2026	51-200	58 contacts →
	Exact match “Homeway Commercial is an Illinois based volumetric modular manufacturer of large-scale commercial projects such as hotels, multi-family apartments, housing developments, senior…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14	Sunbelt Modular INC	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 18, 2026	1,001-5,000	57 contacts →
	Exact match “At Sunbelt, we specialize in the design, engineering, and manufacturing of custom modular buildings for a wide range of industries.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15	Surepods	Exact match	Orlando, FL, United StatesHQ recorded Oct 18, 2026	201-500	57 contacts →
	Exact match “SurePods is part of the DPR family of companies, which is closing the gap between design and construction with an integrated collection of products and services to build smarter…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16	Portable Solutions Group, INC	Exact match	Greenup, KY, United StatesHQ recorded Oct 18, 2026	51-200	56 contacts →
	Exact match “Portable Solutions Group (PSG), Powered by VitalSpace, is a leader in designing and manufacturing containerized structures and purpose-built enclosures that enhance productivity…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17	Acton Mobile	Exact match	Baltimore, MD, United StatesHQ recorded Oct 18, 2026	201-500	56 contacts →
	Exact match “No one knows how mobile facilities and temporary storage enhance productivity and results like Acton Mobile.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18	Wilmot Modular Structures, INC	Exact match	White Marsh, MD, United StatesHQ recorded Oct 18, 2026	51-200	55 contacts →
	Exact match “Since 1989, Wilmot Modular Structures has proudly maintained its position as an industry leader in the distribution, sales, and leasing of portable, prefabricated, and mobile…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19	Allied Modular Building Systems	Exact match	Orange, CA, United StatesHQ recorded Oct 18, 2026	51-200	54 contacts →
	Exact match “Allied Modular has been an industry leader for over 35 years in high quality modular construction.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20	Throne Labs	Exact match	Washington, DC, United StatesHQ recorded Oct 18, 2026	51-200	53 contacts →
	Exact match “Throne Labs was founded to reimagine restrooms from the ground up, leveraging modern technology to make them cleaner, more accessible, and cost-effective.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21	William Scottsman	Exact match	Newbury Park, CA, United StatesHQ recorded Oct 18, 2026	11-50	53 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22	American Modular Systems	Exact match	Manteca, CA, United StatesHQ recorded Oct 18, 2026	201-500	51 contacts →
	Exact match “At American Modular Systems (AMS), we’re redefining what’s possible in modular design.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23	Triumph Modular	Exact match	Littleton, MA, United StatesHQ recorded Oct 18, 2026	51-200	50 contacts →
	Exact match “Triumph Modular is a leader in the Northeast Region for leasing mobile offices, modular buildings, and storage containers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24	Porta-King Building Systems	Exact match	Earth City, MO, United StatesHQ recorded Oct 18, 2026	51-200	49 contacts →
	Exact match “Porta-King is the largest manufacturer of pre-engineered buildings used in the Industrial, Commercial, Security and Petroleum markets.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25	Palomar Modular Buildings	Exact match	Desoto, TX, United StatesHQ recorded Oct 18, 2026	51-200	48 contacts →
	Exact match “Palomar Modular Buildings designs and manufactures advanced modular buildings for a range of industries both public and private.” Recorded in the RevenueBase company graph · Oct 18, 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 “modular restroom manufacturers”. 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 406 modular restroom manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 1,833 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Modular restroom manufacturers based in the United States at a glance

As of Oct 18, 2026

34.2%Verified-email coverage

13.2Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Houston

Oct 18, 2026Page data refreshed

Companies by employee count

1-10

173

11-50

129

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 406 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 the United States whose business descriptions match “modular restroom manufacturers” 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 1,833 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 18, 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.

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 “modular restroom manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many modular restroom manufacturers are there based in the United States?

RevenueBase identified 406 company matches for modular restroom manufacturers associated with the 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?

Mobile Modular Management Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most modular restroom manufacturers?

Houston leads with 12 company records, followed by Phoenix (9) and Miami (7).

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 1,833 professional contacts with verified work emails tracked across these 406 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 18, 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.