Company lists · Data refreshed October 2026
Top 25 Core administrative processing systems software companies based in the United States
RevenueBase identified 420 company matches for core administrative processing systems software companies associated with the United States as of October 2026 and tracks 137,999 professional contacts across them, including 49,724 with verified work emails. New York is the largest hub.
This list covers company matches for core administrative processing systems software companies 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 1, 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.
The 25 largest core administrative processing systems software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 84,166 contacts → | ||||
Exact match “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 2 | 17,911 contacts → | ||||
Exact match “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 3 | 7,002 contacts → | ||||
Exact match “Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 4 | 6,153 contacts → | ||||
Exact match “Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 5 | 5,585 contacts → | ||||
Exact match “With over 30 years as a global people, payroll, and technology leader, Strada specializes in removing complexity to simplify workforce management.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 6 | 2,363 contacts → | ||||
Exact match “For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 7 | 1,889 contacts → | ||||
Exact match “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 8 | 1,376 contacts → | ||||
Exact match “Employee Based Systems (EBS) is a innovative HRMS software development, implementation training, support, and services company specializing in helping companies improve…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 9 | 1,084 contacts → | ||||
Exact match “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 10 | 674 contacts → | ||||
Exact match “For over 25 years, NEOGOV has been at the forefront of public-sector innovation, building technology that helps government and education organizations work smarter, move faster…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 11 | 586 contacts → | ||||
Exact match “CoAdvantage is now CoAd.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 12 | 436 contacts → | ||||
Exact match “PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 13 | 291 contacts → | ||||
Exact match “Employers need a partner they can rely on to face today’s new challenges.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 14 | 285 contacts → | ||||
Exact match “Viventium provides a SaaS-based payroll and HR solution that is focused on the post-acute care industry, paying over health services employees and supporting clients in all 50…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 15 | 273 contacts → | ||||
Exact match “As the leader in Enterprise Software, our powerful IgniteTech platform helps organizations grow revenue, optimize expense and accelerate transformation through a model where every…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 16 | 271 contacts → | ||||
Exact match “Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 17 | 224 contacts → | ||||
Exact match “Cybersoft Technologies, Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 18 | 217 contacts → | ||||
Exact match “At Computronix, we value strong relationships with our clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 19 | 209 contacts → | ||||
Exact match “HCM Unlocked is ranked as one of America's 100 fastest-growing companies by INC.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 20 | 197 contacts → | ||||
Exact match “Dominion Payroll is a leader in payroll and human resource solutions for clients nationwide.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 21 | 189 contacts → | ||||
Exact match “At APS, our mission is simple: to make payroll and HR easier.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 22 | 160 contacts → | ||||
Exact match “Born from the merger of Consona and CDC Software, Aptean, gives businesses of all sizes a competitive edge.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 23 | 159 contacts → | ||||
Exact match “Ovation Payroll is now Heartland Payroll.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 24 | 139 contacts → | ||||
Exact match “Adams Keegan is a leading national provider of cloud-based, integrated solutions for human resources information systems (HRIS), payroll, employee benefits, and benefits…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 25 | 128 contacts → | ||||
Exact match “Acclaim Systems is certified minority small business (SBA 8(a) & GSA) and is a leading software solution company offering a multitude of comprehensive and customized services…” Recorded in the RevenueBase company graph · Oct 1, 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 “core administrative processing systems software companies”. 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 420 core administrative processing systems software companies based in the United States
See the full list, filter by size, metro and specialty, and access 49,724 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Core administrative processing systems software companies based in the United States at a glance
As of Oct 1, 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 420 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 “core administrative processing systems software companies” 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 49,724 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 1, 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 “core administrative processing systems software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many core administrative processing systems software companies are there based in the United States?
RevenueBase identified 420 company matches for core administrative processing systems software companies 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?
ADP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most core administrative processing systems software companies?
New York leads with 9 company records, followed by Houston (6) and San Francisco (6).
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 49,724 professional contacts with verified work emails tracked across these 420 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 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 420 core administrative processing systems software companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Core administrative processing systems software companies by geography
- Core administrative processing systems software companies based in Buenos Aires, Argentina
- Core administrative processing systems software companies based in Sao Paulo, Brazil
- Core administrative processing systems software companies based in Bangalore, India
- Core administrative processing systems software companies based in Mumbai, India
- Core administrative processing systems software companies based in Pune, India
- Core administrative processing systems software companies based in Dubai, United Arab Emirates
- Core administrative processing systems software companies based in London, United Kingdom
- Core administrative processing systems software companies based in Argentina
- Core administrative processing systems software companies based in Australia
- Core administrative processing systems software companies based in Bangladesh
- Core administrative processing systems software companies based in Belgium
- Core administrative processing systems software companies based in Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Core administrative processing systems software companies based in Buenos Aires, Argentina
- Core administrative processing systems software companies based in Sao Paulo, Brazil
- Core administrative processing systems software companies based in Bangalore, India
- Core administrative processing systems software companies based in Mumbai, India
- Core administrative processing systems software companies based in Pune, India
- Core administrative processing systems software companies based in Dubai, United Arab Emirates
Company intelligence · public preview
Top 25 core administrative processing systems software companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 420 matching company records for core administrative processing systems software companies based in the United States, with 137,999 tracked contacts and 49,724 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 core administrative processing systems software companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ADPadp.comHQ: Roseland, NJ, United StatesReported employees: 10001+ | Roseland, NJ, United States | 10001+ | Exact match | 84,166 contacts → |
“Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Paychexpaychex.comHQ: Rochester, NY, United StatesReported employees: 10001+ | Rochester, NY, United States | 10001+ | Exact match | 17,911 contacts → |
“As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Paycompaycom.comHQ: Oklahoma City, OK, United StatesReported employees: 5,001-10,000 | Oklahoma City, OK, United States | 5,001-10,000 | Exact match | 7,002 contacts → |
“Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Paylocitypaylocity.comHQ: Schaumburg, IL, United StatesReported employees: 5,001-10,000 | Schaumburg, IL, United States | 5,001-10,000 | Exact match | 6,153 contacts → |
“Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Stradastradaglobal.comHQ: The Woodlands, TX, United StatesReported employees: 5,001-10,000 | The Woodlands, TX, United States | 5,001-10,000 | Exact match | 5,585 contacts → |
“With over 30 years as a global people, payroll, and technology leader, Strada specializes in removing complexity to simplify workforce management.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Fast Enterprises, LLCfastenterprises.comHQ: Centennial, CO, United StatesReported employees: 1,001-5,000 | Centennial, CO, United States | 1,001-5,000 | Exact match | 2,363 contacts → |
“For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Kronos Incorporatedukg.comHQ: Lowell, MA, United StatesReported employees: 5,001-10,000 | Lowell, MA, United States | 5,001-10,000 | Exact match | 1,889 contacts → |
“Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  SSSeecentral.comHQ: Littleton, CO, United StatesReported employees: Not recorded | Littleton, CO, United States | Not recorded | Exact match | 1,376 contacts → |
“Employee Based Systems (EBS) is a innovative HRMS software development, implementation training, support, and services company specializing in helping companies improve…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ultimate Softwareultimatesoftware.comHQ: Weston, FL, United StatesReported employees: 5,001-10,000 | Weston, FL, United States | 5,001-10,000 | Exact match | 1,084 contacts → |
“Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Neogovneogov.comHQ: El Segundo, CA, United StatesReported employees: 501-1,000 | El Segundo, CA, United States | 501-1,000 | Exact match | 674 contacts → |
“For over 25 years, NEOGOV has been at the forefront of public-sector innovation, building technology that helps government and education organizations work smarter, move faster…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Coadvantagecoad.comHQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 586 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Prismhrprismhr.comHQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 436 contacts → |
“PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Experian Employer Servicesexperian.comHQ: Costa Mesa, CA, United StatesReported employees: 501-1,000 | Costa Mesa, CA, United States | 501-1,000 | Exact match | 291 contacts → |
“Employers need a partner they can rely on to face today’s new challenges.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Viventiumviventium.comHQ: Berkeley Heights, NJ, United StatesReported employees: 201-500 | Berkeley Heights, NJ, United States | 201-500 | Exact match | 285 contacts → |
“Viventium provides a SaaS-based payroll and HR solution that is focused on the post-acute care industry, paying over health services employees and supporting clients in all 50…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ignitetechignitetech.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 273 contacts → |
“As the leader in Enterprise Software, our powerful IgniteTech platform helps organizations grow revenue, optimize expense and accelerate transformation through a model where every…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  INOVAinovapayroll.comHQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 271 contacts → |
“Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cybersoft Technologiescybersoft.netHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 224 contacts → |
“Cybersoft Technologies, Inc.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Computronixcomputronix.comHQ: Lakewood, CO, United StatesReported employees: 51-200 | Lakewood, CO, United States | 51-200 | Exact match | 217 contacts → |
“At Computronix, we value strong relationships with our clients.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  HCM Unlockedhcmunlocked.comHQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 209 contacts → |
“HCM Unlocked is ranked as one of America's 100 fastest-growing companies by INC.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Dominion Payrolldominionpayroll.comHQ: Richmond, VA, United StatesReported employees: 51-200 | Richmond, VA, United States | 51-200 | Exact match | 197 contacts → |
“Dominion Payroll is a leader in payroll and human resource solutions for clients nationwide.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  APS Payrollapspayroll.comHQ: Shreveport, LA, United StatesReported employees: 201-500 | Shreveport, LA, United States | 201-500 | Exact match | 189 contacts → |
“At APS, our mission is simple: to make payroll and HR easier.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Consona Corporationaptean.comHQ: Indianapolis, IN, United StatesReported employees: 5,001-10,000 | Indianapolis, IN, United States | 5,001-10,000 | Exact match | 160 contacts → |
“Born from the merger of Consona and CDC Software, Aptean, gives businesses of all sizes a competitive edge.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Heartland Payrollheartland.usHQ: Rochester, NY, United StatesReported employees: 1,001-5,000 | Rochester, NY, United States | 1,001-5,000 | Exact match | 159 contacts → |
“Ovation Payroll is now Heartland Payroll.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Adams Keegan, INCadamskeegan.comHQ: Memphis, TN, United StatesReported employees: 51-200 | Memphis, TN, United States | 51-200 | Exact match | 139 contacts → |
“Adams Keegan is a leading national provider of cloud-based, integrated solutions for human resources information systems (HRIS), payroll, employee benefits, and benefits…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Acclaim Systemsacclaimsystems.comHQ: Feasterville-trevose, PA, United StatesReported employees: 51-200 | Feasterville-trevose, PA, United States | 51-200 | Exact match | 128 contacts → |
“Acclaim Systems is certified minority small business (SBA 8(a) & GSA) and is a leading software solution company offering a multitude of comprehensive and customized services…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 420 company matches
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Core administrative processing systems software companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
420 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 420 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for core administrative processing systems software companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many core administrative processing systems software companies did RevenueBase find based in the United States?
The saved snapshot records 420 matching company records, 137,999 tracked contacts and 49,724 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Core administrative processing systems software companies by geography
- Core administrative processing systems software companies based in Buenos Aires, Argentina
- Core administrative processing systems software companies based in Sao Paulo, Brazil
- Core administrative processing systems software companies based in Bangalore, India
- Core administrative processing systems software companies based in Mumbai, India
- Core administrative processing systems software companies based in Pune, India
- Core administrative processing systems software companies based in Dubai, United Arab Emirates
- Core administrative processing systems software companies based in London, United Kingdom
- Core administrative processing systems software companies based in Argentina
- Core administrative processing systems software companies based in Australia
- Core administrative processing systems software companies based in Bangladesh
- Core administrative processing systems software companies based in Belgium
- Core administrative processing systems software companies based in Brazil
Cite this list
RevenueBase Data Team. Top 25 core administrative processing systems software companies based in the United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/core-administrative-processing-systems-software-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Core administrative processing systems software companies based in Buenos Aires, Argentina
- Core administrative processing systems software companies based in Sao Paulo, Brazil
- Core administrative processing systems software companies based in Bangalore, India
- Core administrative processing systems software companies based in Mumbai, India
- Core administrative processing systems software companies based in Pune, India
- Core administrative processing systems software companies based in Dubai, United Arab Emirates
Company intelligence · public preview
Top 25 core administrative processing systems software companies based in the United States
RevenueBase records 420 matching company records for core administrative processing systems software companies based in the United States, with 137,999 tracked contacts and 49,724 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 core administrative processing systems software companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ADPadp.com HQ: Roseland, NJ, United StatesReported employees: 10001+ | Roseland, NJ, United States | 10001+ | Exact match | 84,166 contacts → |
“Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Paychexpaychex.com HQ: Rochester, NY, United StatesReported employees: 10001+ | Rochester, NY, United States | 10001+ | Exact match | 17,911 contacts → |
“As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Paycompaycom.com HQ: Oklahoma City, OK, United StatesReported employees: 5,001-10,000 | Oklahoma City, OK, United States | 5,001-10,000 | Exact match | 7,002 contacts → |
“Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Paylocitypaylocity.com HQ: Schaumburg, IL, United StatesReported employees: 5,001-10,000 | Schaumburg, IL, United States | 5,001-10,000 | Exact match | 6,153 contacts → |
“Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Stradastradaglobal.com HQ: The Woodlands, TX, United StatesReported employees: 5,001-10,000 | The Woodlands, TX, United States | 5,001-10,000 | Exact match | 5,585 contacts → |
“With over 30 years as a global people, payroll, and technology leader, Strada specializes in removing complexity to simplify workforce management.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Fast Enterprises, LLCfastenterprises.com HQ: Centennial, CO, United StatesReported employees: 1,001-5,000 | Centennial, CO, United States | 1,001-5,000 | Exact match | 2,363 contacts → |
“For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Kronos Incorporatedukg.com HQ: Lowell, MA, United StatesReported employees: 5,001-10,000 | Lowell, MA, United States | 5,001-10,000 | Exact match | 1,889 contacts → |
“Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | SSSeecentral.com HQ: Littleton, CO, United StatesReported employees: Not recorded | Littleton, CO, United States | Not recorded | Exact match | 1,376 contacts → |
“Employee Based Systems (EBS) is a innovative HRMS software development, implementation training, support, and services company specializing in helping companies improve…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ultimate Softwareultimatesoftware.com HQ: Weston, FL, United StatesReported employees: 5,001-10,000 | Weston, FL, United States | 5,001-10,000 | Exact match | 1,084 contacts → |
“Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Neogovneogov.com HQ: El Segundo, CA, United StatesReported employees: 501-1,000 | El Segundo, CA, United States | 501-1,000 | Exact match | 674 contacts → |
“For over 25 years, NEOGOV has been at the forefront of public-sector innovation, building technology that helps government and education organizations work smarter, move faster…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Coadvantagecoad.com HQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 586 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Prismhrprismhr.com HQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 436 contacts → |
“PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Experian Employer Servicesexperian.com HQ: Costa Mesa, CA, United StatesReported employees: 501-1,000 | Costa Mesa, CA, United States | 501-1,000 | Exact match | 291 contacts → |
“Employers need a partner they can rely on to face today’s new challenges.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Viventiumviventium.com HQ: Berkeley Heights, NJ, United StatesReported employees: 201-500 | Berkeley Heights, NJ, United States | 201-500 | Exact match | 285 contacts → |
“Viventium provides a SaaS-based payroll and HR solution that is focused on the post-acute care industry, paying over health services employees and supporting clients in all 50…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ignitetechignitetech.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 273 contacts → |
“As the leader in Enterprise Software, our powerful IgniteTech platform helps organizations grow revenue, optimize expense and accelerate transformation through a model where every…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | INOVAinovapayroll.com HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 271 contacts → |
“Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cybersoft Technologiescybersoft.net HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 224 contacts → |
“Cybersoft Technologies, Inc.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Computronixcomputronix.com HQ: Lakewood, CO, United StatesReported employees: 51-200 | Lakewood, CO, United States | 51-200 | Exact match | 217 contacts → |
“At Computronix, we value strong relationships with our clients.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HCM Unlockedhcmunlocked.com HQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 209 contacts → |
“HCM Unlocked is ranked as one of America's 100 fastest-growing companies by INC.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Dominion Payrolldominionpayroll.com HQ: Richmond, VA, United StatesReported employees: 51-200 | Richmond, VA, United States | 51-200 | Exact match | 197 contacts → |
“Dominion Payroll is a leader in payroll and human resource solutions for clients nationwide.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | APS Payrollapspayroll.com HQ: Shreveport, LA, United StatesReported employees: 201-500 | Shreveport, LA, United States | 201-500 | Exact match | 189 contacts → |
“At APS, our mission is simple: to make payroll and HR easier.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Consona Corporationaptean.com HQ: Indianapolis, IN, United StatesReported employees: 5,001-10,000 | Indianapolis, IN, United States | 5,001-10,000 | Exact match | 160 contacts → |
“Born from the merger of Consona and CDC Software, Aptean, gives businesses of all sizes a competitive edge.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Heartland Payrollheartland.us HQ: Rochester, NY, United StatesReported employees: 1,001-5,000 | Rochester, NY, United States | 1,001-5,000 | Exact match | 159 contacts → |
“Ovation Payroll is now Heartland Payroll.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Adams Keegan, INCadamskeegan.com HQ: Memphis, TN, United StatesReported employees: 51-200 | Memphis, TN, United States | 51-200 | Exact match | 139 contacts → |
“Adams Keegan is a leading national provider of cloud-based, integrated solutions for human resources information systems (HRIS), payroll, employee benefits, and benefits…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Acclaim Systemsacclaimsystems.com HQ: Feasterville-trevose, PA, United StatesReported employees: 51-200 | Feasterville-trevose, PA, United States | 51-200 | Exact match | 128 contacts → |
“Acclaim Systems is certified minority small business (SBA 8(a) & GSA) and is a leading software solution company offering a multitude of comprehensive and customized services…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 420 company matches
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Core administrative processing systems software companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
420 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 420 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for core administrative processing systems software companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many core administrative processing systems software companies did RevenueBase find based in the United States?
The saved snapshot records 420 matching company records, 137,999 tracked contacts and 49,724 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Core administrative processing systems software companies by geography
- Core administrative processing systems software companies based in Buenos Aires, Argentina
- Core administrative processing systems software companies based in Sao Paulo, Brazil
- Core administrative processing systems software companies based in Bangalore, India
- Core administrative processing systems software companies based in Mumbai, India
- Core administrative processing systems software companies based in Pune, India
- Core administrative processing systems software companies based in Dubai, United Arab Emirates
- Core administrative processing systems software companies based in London, United Kingdom
- Core administrative processing systems software companies based in Argentina
- Core administrative processing systems software companies based in Australia
- Core administrative processing systems software companies based in Bangladesh
- Core administrative processing systems software companies based in Belgium
- Core administrative processing systems software companies based in Brazil
Cite this list
RevenueBase Data Team. Top 25 core administrative processing systems software companies based in the United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/core-administrative-processing-systems-software-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Core administrative processing systems software companies based in Buenos Aires, Argentina
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- Core administrative processing systems software companies based in Dubai, United Arab Emirates