Company lists · Data refreshed September 2026
Top 25 Adp marketplace apps software companies based in the United States
RevenueBase identified 168 adp marketplace apps software companies headquartered in the United States as of September 2026 and tracks 9,248 professional contacts across them, including 4,818 with verified work emails. San Francisco is the largest hub.
This list covers adp marketplace apps software 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 14, 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 adp marketplace apps software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,153 contacts → | ||||
Partial evidence “Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 791 contacts → | ||||
Indirect evidence “EverCommerce is a leading service commerce platform, providing vertically-tailored, integrated SaaS solutions that help more than global service-based businesses accelerate…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 237 contacts → | ||||
Partial evidence “Apptivo is a cloud platform of integrated business apps designed for companies of all shapes & sizes.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 217 contacts → | ||||
Indirect evidence “Imagine a future where your business effortlessly blends modern accounting and financial systems with streamlined operations layered over a secure and scalable IT infrastructure.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 189 contacts → | ||||
Indirect evidence “At APS, our mission is simple: to make payroll and HR easier.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 159 contacts → | ||||
Indirect evidence “Ovation Payroll is now Heartland Payroll.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 148 contacts → | ||||
Partial evidence “FileMaker, a Workplace Innovation Platform, allows you to build custom apps to match the unique needs of your business and help to better connect your systems, processes and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 132 contacts → | ||||
Indirect evidence “Every is the operating system for your back office, combining incorporation, banking, payroll, accounting, HR, taxes, and compliance-all in one place.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 118 contacts → | ||||
Indirect evidence “On May 3, 2023, FinancialForce became Certinia: the platform for services business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 105 contacts → | ||||
Indirect evidence “Deskera is an award-winning integrated platform that enables SMBs to scale faster with fewer tools.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 74 contacts → | ||||
Indirect evidence “GoCo brings your HR data to life and gives you the tools to customize your workflow for any HR process, policy, or checklist.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 contacts → | ||||
Partial evidence “Striven is an all-in-one business management software that combines CRM, accounting, project management, inventory, and HR in a single system.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Indirect evidence “ThreadKore is the single thread that ties together businesses, both large and small.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 29 contacts → | ||||
Indirect evidence “FlowRocket is an all-in-one business operating platform that allows you track business data and transactions – sales CRM activities, project management activities, documents…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 28 contacts → | ||||
Indirect evidence “At ShuffleLabs, we pride ourselves on being your trusted partner for integration solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Indirect evidence “Streamline HRMS Project Management, and Financials-All in One Integrated Solution Configured for global offices, Juntrax provides integrated and efficient management of your daily…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Indirect evidence “Apideck eliminates the complexity of integrations with a single real-time API that connects to 190+ platforms across CRM, Accounting, HRIS, File Storage, and eCommerce without the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Mainspring is modernizing back-office operations for small and mid-market businesses by unifying payroll, payments, financing, and time & attendance into one seamless platform.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “Alloy Automation is a SaaS integration development platform.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 20 contacts → | ||||
Indirect evidence “Behind most things at InfoStreet, is a remarkable vision.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Partial evidence “CustomBooks™ is a comprehensive software solution designed specifically for small to mid-sized businesses that manage accounting, inventory, distribution, wholesale, and ecommerce.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 16 contacts → | ||||
Indirect evidence “We help businesses, creators, and professionals grow their digital presence with AI-powered solutions that simplify content creation, audience engagement, and performance…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Indirect evidence “Bindbee enables B2B Tech companies to do integrations easily at scale.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “Csuite ERP is an integrated, cloud ERP system designed specifically for the business needs of small to mid-size businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Indirect evidence “Cube is a cloud-based platform that helps optimize and improve all aspects of business management.” Source: RevenueBase Database · checked Sep 14, 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: adp marketplace apps software 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 adp marketplace apps software companies.
- Partial evidence
- Its own public description names part of adp marketplace apps software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name adp marketplace apps software 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 168 adp marketplace apps software companies based in the United States
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Adp marketplace apps software companies based in the United States at a glance
As of Sep 14, 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 168 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 adp marketplace apps software 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 “adp marketplace apps software 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 adp marketplace apps software 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 adp marketplace apps software 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, 4,818 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 14, 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 adp marketplace apps software 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 adp marketplace apps software companies are there based in the United States?
RevenueBase identified 168 adp marketplace apps software 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?
Paylocity, headquartered in Schaumburg, tops this list with the largest team on record.
Which city has the most adp marketplace apps software companies?
San Francisco leads with 15 headquartered companies, followed by New York (6) and Wilmington (6).
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 4,818 verified decision-maker contacts tracked across these 168 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 14, 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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