Company lists · Data refreshed September 2026

Top 16 Variable message sign manufacturers based in the United States

RevenueBase identified 32 variable message sign manufacturers headquartered in the United States as of September 2026 and tracks 629 professional contacts across them, including 282 with verified work emails. Marshall is the largest hub.

This list covers variable message sign 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
32Companies
629Contacts tracked
282Verified emails
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The 16 largest variable message sign manufacturers based in the United States

Ranked by team size
Top 16 of 32 variable message sign 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 variable message sign 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 evidenceArvada, CO, United StatesHQ checked Sep 30, 2026201-500113 contacts →

Indirect evidence

“Since 1984, Wanco has been designing, engineering and manufacturing high-quality and easy-to-use portable safety equipment and accessories for industries such as traffic…”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceSt. Paul, MN, United StatesHQ checked Sep 30, 202651-20082 contacts →

Indirect evidence

“As the nation's largest rental provider of specialized traffic safety equipment and Smart Work Zone integration services, our economical rental program allows our customers to…”

Source: RevenueBase Database · checked Sep 30, 2026
3Strong evidenceChantilly, VA, United StatesHQ checked Sep 30, 202651-20060 contacts →

Strong evidence

“Now part of the TAPCO brand family, All Traffic Solutions (ATS) is a leading provider of traffic and public safety tools like variable message boards, radar speed signs, and…”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceTupelo, MS, United StatesHQ checked Sep 30, 202611-5049 contacts →

Indirect evidence

“K&K SYSTEMS has been serving the traffic industry since 1997.”

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceGrand Prairie, TX, United StatesHQ checked Sep 30, 202651-20048 contacts →

Indirect evidence

“For Over 30 years, Centerline Supply has been providing quality traffic safety products and highway traffic, directional wayfinding, and advertising signage to governmental and…”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceSt. Paul, MN, United StatesHQ checked Sep 30, 202651-20043 contacts →

Indirect evidence

“ADDCO sets the standard in vehicle-mounted and fixed-traffic control solutions that deploy fast, withstand extreme conditions and deliver proven visibility to protect crews and…”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceTampa, FL, United StatesHQ checked Sep 30, 202651-20041 contacts →

Indirect evidence

“Transportation Control Systems has been a recognized leader in the manufacturing and distribution of high quality, technologically advanced traffic control products for over 35…”

Source: RevenueBase Database · checked Sep 30, 2026
8Partial evidenceRichmond, VA, United StatesHQ checked Sep 30, 202651-20027 contacts →

Partial evidence

“Since 1975 Korman Signs, Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
9Partial evidenceLittle Rock, AR, United StatesHQ checked Sep 30, 202651-20025 contacts →

Partial evidence

“Interstate SignWays, founded in 1959, is the leading producer of highway signs in the United States.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceReading, PA, United StatesHQ checked Sep 30, 202611-5019 contacts →

Indirect evidence

“For over 30 years Horizon Signal Technologies has worked to build a reputation for manufacturing high quality versatile portable traffic signal systems.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceClover, SC, United StatesHQ checked Sep 30, 202611-5017 contacts →

Indirect evidence

“Carolina Traffic Devices is a member of the Curtin Co.”

Source: RevenueBase Database · checked Sep 30, 2026
12Partial evidenceAtlanta, GA, United StatesHQ checked Sep 30, 202651-20011 contacts →

Partial evidence

“American Signal Company (Amsig), founded in 1990 and based in Atlanta, Georgia, is a manufacturer of a comprehensive line of portable products for a variety of informational and…”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceAnaheim, CA, United StatesHQ checked Sep 30, 202611-508 contacts →

Indirect evidence

“Fortel Traffic, Inc.’s edge in the traffic industry is based on its ability to adapt and create innovative products quickly to resolve concerns and needs within the traffic…”

Source: RevenueBase Database · checked Sep 30, 2026
14Strong evidenceBarre, VT, United StatesHQ checked Sep 30, 20261-108 contacts →

Strong evidence

“Worksafe Traffic Control Industries is a manufacturer of signs and distributor of traffic control products and devices for highways construction zones, traffic calming, and…”

Source: RevenueBase Database · checked Sep 30, 2026
15Partial evidenceBaltimore, MD, United StatesHQ checked Sep 30, 202611-504 contacts →

Partial evidence

“Signs are an integral part of our environment.”

Source: RevenueBase Database · checked Sep 30, 2026
16Strong evidenceSpokane, WA, United StatesHQ checked Sep 30, 202611-503 contacts →

Strong evidence

“National Barricade and Sign is a Sign Manufacture of ALL SORTS- We rent and sell equipment-Message boards-Arrow boards - Cones TMA's ETC”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 16 of 32 variable message sign manufacturers based in the United States

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Variable message sign manufacturers based in the United States at a glance

As of Sep 30, 2026
44.8%Verified-email coverage
19.7Average contacts per company
11-50Median size (employees)
6.2%Largest-city concentration · Marshall
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
10
51-200
12
201-500
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 32 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 variable message sign 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 “variable message sign 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 variable message sign 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 variable message sign 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, 282 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 variable message sign 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 variable message sign manufacturers are there based in the United States?

RevenueBase identified 32 variable message sign 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?

Wanco INC, headquartered in Arvada, tops this list with the largest team on record.

Which city has the most variable message sign manufacturers?

Marshall leads with 2 headquartered companies, followed by St. Paul (2) and Tavares (2).

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 282 verified decision-maker contacts tracked across these 32 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.