Company lists · Data refreshed September 2026

Top 24 Office container manufacturers based in the United States

RevenueBase identified 349 office container manufacturers headquartered in the United States as of September 2026 and tracks 5,321 professional contacts across them, including 1,691 with verified work emails. Houston is the largest hub.

This list covers office container manufacturers headquartered in the United States, 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 30, 2026.

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 30, 2026 86% judged on-target in blind review
349Companies
5,321Contacts tracked
1,691Verified emails
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The 24 largest office container manufacturers based in the United States

Ranked by team size
Top 24 of 349 office container manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to office container manufacturers: 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
1Indirect evidenceBerwyn, PA, United StatesHQ checked Sep 30, 2026501-1,000293 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 30, 2026201-500160 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
3Partial evidenceCinnaminson, NJ, United StatesHQ checked Sep 30, 2026201-500117 contacts →

Partial evidence

“For over 40 years, SEA BOX has transformed ISO containers into high-performance solutions for commercial and military operations worldwide.”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceLivermore, CA, United StatesHQ checked Sep 30, 202651-200105 contacts →

Indirect evidence

“At Mobile Modular Portable Storage, a division of McGrath RentCorp, we understand it’s important to find the right job and the right career.”

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 30, 202651-200105 contacts →

Indirect evidence

“A nationwide modular construction partner specializing in temporary and permanent space solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
6Partial evidenceNaples, CA, United StatesHQ checked Sep 30, 2026501-1,00086 contacts →

Partial evidence

“FleetGenius® provides sustainable container solutions to environmentally-conscious organizations across the nation.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 30, 202651-20082 contacts →

Indirect evidence

“Southwest Mobile Storage is a family-owned business founded in 1995.”

Source: RevenueBase Database · checked Sep 30, 2026
8Partial evidenceSouth Whitley, IN, United StatesHQ checked Sep 30, 202651-20072 contacts →

Partial evidence

“Whitley Manufacturing is one of the nation's leading manufacturers of custom commercial modular buildings serving an international clientele from Indiana and Washington.”

Source: RevenueBase Database · checked Sep 30, 2026
9Strong evidenceStanton, CA, United StatesHQ checked Sep 30, 202651-20067 contacts →

Strong evidence

“Since 1968 Haulaway Storage Containers has been providing the construction industry with secure onsite storage containers and ground level office's.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceFort Worth, TX, United StatesHQ checked Sep 30, 2026201-50059 contacts →

Indirect evidence

“BOXX Modular US rents, leases, and sells temporary and permanent modular buildings, including standard buildings ready for immediate delivery and custom-designed solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
11Strong evidenceManor, TX, United StatesHQ checked Sep 30, 202651-20057 contacts →

Strong evidence

“Founded in 2003, Falcon Structures repurposes steel shipping containers into safe and secure living, working and storage spaces - workforce housing units, mobile offices, and more.”

Source: RevenueBase Database · checked Sep 30, 2026
12Partial evidenceGreenup, KY, United StatesHQ checked Sep 30, 202651-20056 contacts →

Partial evidence

“Portable Solutions Group (PSG), Powered by VitalSpace, is a leader in designing and manufacturing containerized structures and purpose-built enclosures that enhance productivity…”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceCerritos, CA, United StatesHQ checked Sep 30, 202651-20053 contacts →

Indirect evidence

“At Madison Industries, we understand our customers’ needs and expectations are constantly evolving.”

Source: RevenueBase Database · checked Sep 30, 2026
14Strong evidenceLittleton, MA, United StatesHQ checked Sep 30, 202651-20052 contacts →

Strong evidence

“Triumph Modular is a leader in the Northeast Region for leasing mobile offices, modular buildings, and storage containers.”

Source: RevenueBase Database · checked Sep 30, 2026
15Partial evidenceEarth City, MO, United StatesHQ checked Sep 30, 202651-20052 contacts →

Partial evidence

“Porta-King is the largest manufacturer of pre-engineered buildings used in the Industrial, Commercial, Security and Petroleum markets.”

Source: RevenueBase Database · checked Sep 30, 2026
16Indirect evidenceNewbury Park, CA, United StatesHQ checked Sep 30, 202611-5052 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
17Partial evidenceDraper, UT, United StatesHQ checked Sep 30, 2026501-1,00051 contacts →

Partial evidence

“We are a container supply company that specializes in unique industry solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidenceOrange, CA, United StatesHQ checked Sep 30, 202651-20050 contacts →

Indirect evidence

“Allied Modular has been an industry leader for over 35 years in high quality modular construction.”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 30, 2026201-50049 contacts →

Indirect evidence

“No one knows how mobile facilities and temporary storage enhance productivity and results like Acton Mobile.”

Source: RevenueBase Database · checked Sep 30, 2026
20Partial evidenceDesoto, TX, United StatesHQ checked Sep 30, 202651-20046 contacts →

Partial evidence

“Palomar Modular Buildings designs and manufactures advanced modular buildings for a range of industries both public and private.”

Source: RevenueBase Database · checked Sep 30, 2026
21Indirect evidenceWhite Marsh, MD, United StatesHQ checked Sep 30, 202651-20045 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 30, 2026
22Partial evidenceDouglas, GA, United StatesHQ checked Sep 30, 2026201-50044 contacts →

Partial evidence

“For over 20 years, DBI has been a leading manufacturer of relocatable modular buildings.”

Source: RevenueBase Database · checked Sep 30, 2026
23Indirect evidenceRonkonkoma, NY, United StatesHQ checked Sep 30, 202651-20039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
24Indirect evidenceGrand Rapids, United StatesHQ checked Sep 30, 202611-5037 contacts →

Indirect evidence

“Newco + Blox delivers full-spectrum commercial, industrial, and adaptable construction solutions built for today-and tomorrow.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 24 of 349 office container manufacturers based in the United States

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Office container manufacturers based in the United States at a glance

As of Sep 30, 2026
31.8%Verified-email coverage
15.2Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Houston
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
156
11-50
124
51-200
51
201-500
12
501-1,000
5
10001+
1

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 349 companies.

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 office container manufacturers, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “office container manufacturers”. 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 office container manufacturers), 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 office container manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 1,691 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 30, 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.

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 office container manufacturers, 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 office container manufacturers are there based in the United States?

RevenueBase identified 349 office container manufacturers headquartered in the United States 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?

Modspace, headquartered in Berwyn, tops this list with the largest team on record.

Which city has the most office container manufacturers?

Houston leads with 12 headquartered companies, followed by Phoenix (6) and Austin (4).

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 1,691 verified decision-maker contacts tracked across these 349 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 30, 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.