Company lists · Data refreshed September 2026

Top 13 HR integration platform companies based in St. Louis, United States

Name: HR integration platform companies based in St. Louis, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 27 companies tracked

RevenueBase identified 27 company matches for HR integration platform companies associated with St. Louis, United States as of September 2026 and tracks 296 professional contacts across them, including 100 with verified work emails. Across the United States, New York is the largest hub for this category (456 companies); St. Louis has 27.

This list covers company matches for HR integration platform companies associated with St. Louis, 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 September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

27Companies

296Contacts tracked

100Verified emails

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The 13 largest HR integration platform companies based in St. Louis, United States

Ranked by team size

Top 13 of 27 company matches for HR integration platform companies based in St. Louis, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Nextgen	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	201-500	135 contacts →
	Exact match “Nextgen is a premier talent engagement firm dedicated to building a professional workforce and a productive workplace environment for quickly changing high-tech business world in…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Inclusively	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	26 contacts →
	Exact match “Inclusively is a workforce intelligence company built on a simple belief: when people have access to the right support, they are more likely to succeed, grow, and thrive at work.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Synchronyhr	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	51-200	20 contacts →
	Exact match “SynchronyHR is a human resources outsourcing firm serving business owners across the country.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Techim INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	14 contacts →
	Exact match “Tech IM INC is an emerging global leader in IT staffing solutions headquartered in MO- USA, Canada, and India.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Tai-Chi Consulting	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	12 contacts →
	Exact match “TAI-CHI Consulting is a full-service HR and IT consulting and staffing firm.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Kiosite	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	11 contacts →
	Exact match “Kiosite is a fast-growing, St.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	People Solutions Center	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	1-10	10 contacts →
	Exact match “We help growth-stage businesses build teams that perform-without constant oversight.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Simparahr	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	1-10	10 contacts →
	Exact match “Simpara brings modern, full-scale HR & benefit solutions to your business.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Orbitar	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	9 contacts →
	Exact match “Orbitar is a leading consultancy specializing in HRIS and ATS integration, software implementation, and API support.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Largely	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	1-10	7 contacts →
	Exact match “Largely is a talent experience platform that allows talent and HR teams to create branded and actionable experiences for every step of the employee lifecycle.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Waylit	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	6 contacts →
	Exact match “WayLit is an end-to-end global immigration solution that combines expert attorneys, a responsive support team, and a modern platform-built for HR teams managing global talent.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Taligent, LLC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	1-10	5 contacts →
	Exact match “At Taligent, we define our success through our ability to help our clients achieve their goals through customized HR and Talent solutions and services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Accupay HCM	Exact match	St. Louis, MO, United StatesHQ recorded Sep 30, 2026	11-50	4 contacts →
	Exact match “Our mission is to empower employers with seamless technology and individually dedicated support to help manage their most important asset, their people.” Recorded in the RevenueBase company graph · Sep 30, 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 “HR integration platform 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 13 of 27 HR integration platform companies based in St. Louis, United States

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HR integration platform companies based in St. Louis, United States at a glance

As of Sep 30, 2026

33.8%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for St. Louis, so it is reported there. Company counts and contact totals on this page are exact for St. Louis, over 27 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 St. Louis, United States whose business descriptions match “HR integration platform 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 100 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 September 30, 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.

HR integration platform companies by metro in the United States

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 “HR integration platform companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR integration platform companies are there based in St. Louis, United States?

RevenueBase identified 27 company matches for HR integration platform companies associated with St. Louis, United States as of September 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?

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

Which city in the United States has the most HR integration platform companies?

New York leads the United States with 456 company records, followed by San Francisco (282) and Atlanta (190). St. Louis has 27.

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 100 professional contacts with verified work emails tracked across these 27 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 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 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.