Company lists · Data refreshed November 2026

Top 25 Truck conversion & extension unit suppliers based in the United States

RevenueBase identified 364 company matches for truck conversion & extension unit suppliers associated with the United States as of November 2026 and tracks 6,890 professional contacts across them, including 2,246 with verified work emails. Elkhart is the largest hub.

This list covers company matches for truck conversion & extension unit suppliers 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 November 3, 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 Nov 3, 2026 How this list was built
364Companies
6,890Contacts tracked
2,246Verified emails
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The 25 largest truck conversion & extension unit suppliers based in the United States

Ranked by team size
Top 25 of 364 company matches for truck conversion & extension unit suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchQuincy, IL, United StatesHQ recorded Nov 3, 20261,001-5,000821 contacts →

Exact match

“Knapheide is the nation’s leading manufacturer of work-ready vehicle solutions.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchBrookfield, WI, United StatesHQ recorded Nov 3, 20265,001-10,000705 contacts →

Exact match

“On February 2, 2026, REV Group merged with Terex Corporation to form a premier specialty equipment manufacturer with a diversified portfolio and strong growth prospects.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchBristol, MI, United StatesHQ recorded Nov 3, 20261,001-5,000589 contacts →

Exact match

“Utilimaster designs and builds durable and reliable fleet solutions and offers an extensive support and service network throughout the life span of vans and trucks.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchReading, PA, United StatesHQ recorded Nov 3, 20261,001-5,000473 contacts →

Exact match

“Reading Truck is a leading manufacturer, upfitter and distributor of vocational work truck bodies, truck equipment, commercial trucks, and service vans.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchBrighton, CO, United StatesHQ recorded Nov 3, 20261,001-5,000431 contacts →

Exact match

“As one of the fastest-growing transportation specialists in the nation, we can professionally guide your organization to the next level in transportation solutions.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchNovi, MI, United StatesHQ recorded Nov 3, 20261,001-5,000270 contacts →

Exact match

“The Shyft Group operates through our unparalleled roster of commercial, retail, and service specialty vehicle and upfit brands, including Utilimaster, Blue Arc EV, Royal Truck…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchFort Wayne, IN, United StatesHQ recorded Nov 3, 2026201-500256 contacts →

Exact match

“Premier Truck Rental (PTR) is a trusted fleet solutions provider committed to precision, reliability, and customer-first service.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchDetroit, OH, United StatesHQ recorded Nov 3, 2026201-500193 contacts →

Exact match

“Detroit Chassis is a subsidiary of Spectra LLC, a concept to customer provider of niche vehicle manufacturing solutions owned by Michael and Carlton Guthrie.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9Exact matchKings Park, PA, United StatesHQ recorded Nov 3, 2026501-1,000143 contacts →

Exact match

“Dejana Truck & Utility is a division of Douglas Dynamics, North America’s premier manufacturer and up-fitter of work truck and van attachments and equipment.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchFresno, CA, United StatesHQ recorded Nov 3, 2026201-500123 contacts →

Exact match

“In 1979, brothers Mike, Jim, and Gary Scelzi began manufacturing their line of flatbeds out of their company’s 4,500 square foot facility in Fresno, California.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchAkron, OH, United StatesHQ recorded Nov 3, 202651-200122 contacts →

Exact match

“Driverge Vehicle Innovations: Transforming Mobility, Empowering Lives At Driverge Vehicle Innovations, we redefine possibilities in the commercial automotive sector.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchMonroe, United StatesHQ recorded Nov 3, 2026n/a87 contacts →

Exact match

“Monroe is a manufacturer and distibutor of quality truck equipment products as well as being a chassis modifier and commercial vehicle pool with ship thru and freight reentry…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchHouston, KY, United StatesHQ recorded Nov 3, 2026201-50067 contacts →

Exact match

“General Truck Body was founded in the early 1900’s as a blacksmith shop where Boris Levitch put shoes on horses; then began building horse-drawn carriages.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchGreensboro, NC, United StatesHQ recorded Nov 3, 202651-20048 contacts →

Exact match

“Matthews Specialty Vehicles embodies a legacy of excellence!”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchBuffalo, NY, United StatesHQ recorded Nov 3, 202651-20047 contacts →

Exact match

“Unicell Body Company is North America's leading manufacturer of one-piece fiberglass van bodies and an upfitter which supplies and installs premium truck equipment.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchElkhart, IN, United StatesHQ recorded Nov 3, 2026201-50047 contacts →

Exact match

“Midwest Automotive Designs, an Alliance RV company, is North America’s premier luxury B-van manufacturer, redefining the way people travel through handcrafted quality, precision…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchSt. Louis, TX, United StatesHQ recorded Nov 3, 202651-20045 contacts →

Exact match

“Commercial Van Interiors is widely recognized as the industry's leading upfitter of working vans and trucks.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchKansas City, GA, United StatesHQ recorded Nov 3, 202651-20043 contacts →

Exact match

“City Rent a Truck is a comprehensive fleet solutions provider, offering short & long term rentals, rental purchase options (RPO's), new and used vehicle sales, and custom…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchDetroit, MO, United StatesHQ recorded Nov 3, 202651-20038 contacts →

Exact match

“National Fleet Services is your one-stop provider of post-production vehicle enhancements (Up-fitting) for North American Fleets.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchShreveport, LA, United StatesHQ recorded Nov 3, 202651-20036 contacts →

Exact match

“Dealers Truck was founded in 1943 by the late R.F.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchRidgefield, WA, United StatesHQ recorded Nov 3, 202611-5033 contacts →

Exact match

“A manufacturer of a variety of truck bodies, including dry freight vans, FRP vans, refrigerated vans, curtain side vans, combo vans (half curtain/half dry freight), and flatbeds.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchRosemount, MN, United StatesHQ recorded Nov 3, 202611-5030 contacts →

Exact match

“We upfit Class 1-6 commercial vehicles for local, regional, and national fleets, FMCs, municipalities, and commercial dealers.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchBrea, CA, United StatesHQ recorded Nov 3, 202651-20030 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchDenton, TX, United StatesHQ recorded Nov 3, 202651-20029 contacts →

Exact match

“Custom is how we’re built.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchClinton, OK, United StatesHQ recorded Nov 3, 202651-20028 contacts →

Exact match

“SPORTCHASSIS UNITES LUXURY AND FUNCTIONALITY CLINTON, OKLA- SportChassis LLC, manufacturer the finest line of recreational towing vehicles, continues to lead the way with…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 364 truck conversion & extension unit suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 2,246 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Truck conversion & extension unit suppliers based in the United States at a glance

As of Nov 3, 2026
32.6%Verified-email coverage
18.9Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Elkhart
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
143
11-50
141
51-200
53
201-500
13
501-1,000
4
1,001-5,000
8
5,001-10,000
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 364 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 “truck conversion & extension unit suppliers” 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 2,246 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 November 3, 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 “truck conversion & extension unit suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many truck conversion & extension unit suppliers are there based in the United States?

RevenueBase identified 364 company matches for truck conversion & extension unit suppliers associated with the United States as of November 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?

Knapheide tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most truck conversion & extension unit suppliers?

Elkhart leads with 9 company records, followed by Kansas City (6) and Portland (5).

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 2,246 professional contacts with verified work emails tracked across these 364 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 November 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 364 truck conversion & extension unit suppliers based in the United States. Start with a free account, no credit card.

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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.