Company lists · Data refreshed September 2026
Top 25 Access control and time attendance companies based in the United States
RevenueBase identified 81 access control and time attendance companies headquartered in the United States as of September 2026 and tracks 1,240 professional contacts across them, including 465 with verified work emails. Miami is the largest hub.
This list covers access control and time attendance companies 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 19, 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.
The 25 largest access control and time attendance companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 142 contacts → | ||||
Indirect evidence “ABOUT Amano Cincinnati, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 99 contacts → | ||||
Strong evidence “Workwell Technologies specializes in streamlining time and attendance processes for small and mid-sized businesses.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 79 contacts → | ||||
Indirect evidence “ATS is the leading provider of biometric and non-biometric workforce management tools and integration software, offering state-of-the-art solutions such as the PeoplePoint…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 74 contacts → | ||||
Indirect evidence “At Gorrie-Regan, we want to be your favorite vendor!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 65 contacts → | ||||
Strong evidence “Synel Americas is a world leader in the development and production of data collection systems and solutions for workforce management of time & attendance, including access control…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 55 contacts → | ||||
Strong evidence “Attendance on Demand is a rapidly deployed, cloud-based time and attendance system that minimizes a company’s risk and technology investment while providing advanced features for…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 52 contacts → | ||||
Strong evidence “Since 1953, Associated Time & Parking Controls has been committed to providing our customers with the most advanced parking and revenue controls and access control solutions…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 47 contacts → | ||||
Indirect evidence “ZKTeco was officially established in 2007 and since then it has been a world leader in biometric verification that holds several patents and has been selected as a National High…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 46 contacts → | ||||
Strong evidence “XPressEntry handheld readers validate permissions and authenticate credentials against the identity information on record in the access control system database on-the-go from…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 contacts → | ||||
Partial evidence “ZKTeco Workforce Management, a leading provider of time clock solutions globally, delivers high-quality hardware, advanced embedded device software, and a comprehensive suite of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 41 contacts → | ||||
Indirect evidence “At Systellar Technologies, we are dedicated to empowering your business with innovative solutions that drive success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 38 contacts → | ||||
Indirect evidence “Headquartered in Atlanta, Georgia, Lathem is one of the world's leading designers and manufacturers of products for business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 37 contacts → | ||||
Strong evidence “Over the past 50 years Carolina Time has established itself as a leader in sales and service of Parking, Access and Time & Attendance solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 35 contacts → | ||||
Strong evidence “Advant Solutions specializes in standalone and networked access control solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 contacts → | ||||
Strong evidence “Andrews Technology is the World's Largest Novatime Time and Attendance Reseller with over satisfied customers nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “Timeclock 365 is the ultimate solution for all your employee management needs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Strong evidence “Easy Clocking is a leading manufacturer of high-quality Time & Attendance Solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Strong evidence “ITR Systems provides and installs technology solutions such as Access Control, Surveillance Cameras, Security Alarm, Automated Time and Attendance, Wired and Wireless Synchronized…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Partial evidence “We’re a hardware solutions provider founded to eliminate the burdens of time collection for school district IT and HR personnel.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “The Blue Summit family works closely with clients to ensure they are reaching the peak of their success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Partial evidence “Fareclock transforms and redefines how businesses manage attendance: seamlessly, efficiently, and confidently.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Strong evidence “InterAccess Systems has been in the security and access control business for over 30 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Bayshore LA, fue fundada en Miami – USA, el 07 de Junio de 2005 por su actual CEO Roberth Zinatelli, como una empresa mayorista especializada en la distribución de equipos de…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Strong evidence “Our easy time clock and attendance solution assists in streamlining your company's payroll by tracking your employees' clock in and clock out times.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Indirect evidence “Welcome to S.A.M.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: access control and time attendance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names access control and time attendance companies.
- Partial evidence
- Its own public description names part of access control and time attendance companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name access control and time attendance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 81 access control and time attendance companies based in the United States
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Access control and time attendance companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 81 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 access control and time attendance companies, 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 “access control and time attendance companies”. 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 access control and time attendance companies), 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 access control and time attendance companies, 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, 465 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 19, 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 access control and time attendance companies, 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 access control and time attendance companies are there based in the United States?
RevenueBase identified 81 access control and time attendance companies 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?
AMANO, headquartered in Roseland, tops this list with the largest team on record.
Which city has the most access control and time attendance companies?
Miami leads with 3 headquartered companies, followed by Atlanta (2) and Dallas (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 465 verified decision-maker contacts tracked across these 81 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 19, 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.
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