Automatic Data Processing, Inc. engages in the provision of cloud-based human capital management (HCM) solutions worldwide. It operates in two segments, Employer Services and Professional Employer Organization (PEO). The Employer Services segment offers strategic, cloud-based platforms, and human resources (HR) outsourcing solutions. This segment's offerings include RUN Powered by ADP, a software platform for small business payroll, HR management, and tax compliance administration; ADP Workforce Now, a HCM solution used across mid-sized and large businesses to manage employees; and ADP Vantage HCM, a solution for HR management, benefits administration, payroll services, time and attendance management, and talent management. The PEO Services segment provides HR and employment administration outsourcing solutions under ADP TotalSource name to businesses through a co-employment model. The segment also provides employee benefits, protection and compliance, talent engagement, expertise, comprehensive outsourcing, and recruitment process outsourcing services. The company was founded in 1949 and is headquartered in Roseland, New Jersey.

Paylocity Holding Corporation engages in the provision of cloud-based human capital management and payroll software solutions for workforce in the United States. The company offers payroll software solution for global payroll, expense management, tax services, on demand payment, and garnishment managed services; and time and labor management software for time and attendance, scheduling, and time collection. It also provides human resources (HR) software solutions for employee self-service, compliance, HR edge, data analytics, and workflows and documents, as well as human resource management system; talent management system for recruiting, onboarding, performance, compensation, and learning; and benefits administration software. In addition, the company offers employee experience platform for community, employee voice, recognition and rewards, video, and modern workforce index; HR reporting software; and mobile HR solutions. Further, it provides implementation and training, client, and tax and regulatory services. The company serves for-profit and non-profit organizations across industries, including business services, financial services, healthcare, manufacturing, restaurants, retail, technology, and others. It sells its products through sales representatives. The company was founded in 1997 and is headquartered in Schaumburg, Illinois.

Paycor HCM, Inc., together with its subsidiaries, engages in the provision of human capital management (HCM) solutions for small and medium-sized businesses (SMBs) primarily in the United States. It offers cloud-native platform to address the comprehensive people management needs of SMB leaders. The company's software-as-a-service based people management products include HCM Co, including HR and Payroll, a complete suite of HCM tools spanning HR, onboarding, payroll, compensation management, employee surveys, expenses, and reporting and analytics; Talent Acquisition, which provides a set of tools designed to streamline and optimize the entire hiring process, from sourcing and attracting candidates to managing the recruiting process; Talent Management, a suite for the development and retention of employees within an organization; Benefits Administration, a decision support solution to help leaders to streamline and optimize company's benefits administration; and Workforce Management, a solution with flexible time entry, overtime calculations, and scheduling capabilities with real-time payroll synchronization. It serves manufacturing, healthcare, restaurant, retail, professional services, nonprofit, and education industries through its direct sales teams. The company was founded in 1990 and is headquartered in Cincinnati, Ohio.

TriNet Group, Inc. provides comprehensive and flexible human capital management services for small and medium size businesses in the United States. The company offers multi-state payroll processing and tax administration; employee benefits programs, including health insurance and retirement plans; workers compensation insurance and claims management; employment and benefits law compliance; and other HR related services. It also provides technology platform, an online and mobile tool that allows users to store, view, and manager HR information and administer various HR transactions, such as payroll processing, tax administration and credits, employee onboarding and termination, employee performance, time and attendance, compensation reporting, expense management, and benefits enrollment and administration, as well as incorporated workforce analytics and allows professional employer organization clients to generate HR data, payroll, compensation, and other custom reports. The company serves clients in various industries, including technology, professional services, financial services, life sciences, and not-for-profit. It sells its solutions through its direct sales organization. TriNet Group, Inc. was incorporated in 1988 and is headquartered in Dublin, California.

First Advantage Corporation provides employment background screening, identity, and verification solutions worldwide. It offers pre-onboarding products and solutions, such as criminal background checks, drug/health screening, extended workforce screening, FBI channeling, identity checks and biometric fraud mitigation tools, education/work history verification, driver records and compliance, healthcare credentials, executive screening, and other screening products. The company also provides post-onboarding solutions, including criminal records monitoring, healthcare sanctions, motor vehicle records, social media screening, and global sanctions and licenses; and other products comprising fleet/vehicle compliance, hiring tax credits and incentives, resident/tenant screening, and investigative research. Its products and solutions are used by personnel in recruiting, human resources, risk, compliance, vendor management, safety, and/or security in global enterprises, mid-sized, and small companies. The company was formerly known as Fastball Intermediate, Inc. and changed its name to First Advantage Corporation in March 2021. First Advantage Corporation was founded in 2002 and is based in Atlanta, Georgia.

ManpowerGroup Inc. provides workforce solutions and services worldwide. The company offers recruitment services, including permanent, temporary, and contract recruitment of professionals, as well as administrative and industrial positions under the Manpower and Experis brands. It also offers various assessment services; training and development services; career and talent management; and outsourcing services related to human resources functions primarily in the areas of large-scale recruiting and workforce-intensive initiatives. In addition, the company provides workforce consulting services; contingent staffing and permanent recruitment services; professional resourcing and project-based services; and recruitment process outsourcing, TAPFIN managed, and talent solutions. The company was incorporated in 1948 and is headquartered in Milwaukee, Wisconsin.

Sterling Check Corp. provides technology-enabled background and identity verification services in the United States, Canada, Europe, the Middle East and Africa, and the Asia Pacific. The company offers identity verification services, such as telecom and device verification, identification document verification, facial recognition with biometric matching, social security number verification, and live video chat identification proofing; fingerprinting; background checks, including criminal record checks, sex offender registries, civil court records, motor vehicle and driving license records, executive investigations, credit reports, social media searches, and contingent workforce solutions; liens, judgments, and bankruptcies; and sanctions, risk, and compliance checks. It also provides credential verification services, which include employment verification, education verification, credential verification, professional reference checks, and department of transportation; drug and health screening; onboarding solutions, including Sterling I-9 that integrates a suite of screening and onboarding services and onboarding forms; and workforce, medical license, and motor vehicle records monitoring solutions. The company's services are delivered through its cloud-based technology platform that empowers organizations with real-time and data-driven insights to conduct and manage their employment screening programs. It serves a client base in a range of industries, such as healthcare, gig economy, financial and business services, industrials, retail, contingent, technology, media and entertainment, transportation and logistics, hospitality, education, and government. The company was formerly known as Sterling Ultimate Parent Corp. and changed its name to Sterling Check Corp. in August 2021. Sterling Check Corp. was founded in 1975 and is headquartered in Independence, Ohio. As of October 31, 2024, Sterling Check Corp. operates as a subsidiary of First Advantage Corporation.

HealthStream, Inc. provides Software-as-a-Service (SaaS) based applications for healthcare organizations in the United States. The company's solutions help healthcare organizations in meeting their ongoing clinical development, talent management, training, education, assessment, competency management, safety and compliance, and scheduling, as well as provider credentialing, privileging, and enrollment needs. It offers hStream, a technology platform that powers a range of healthcare workforce solutions. The company provides its solutions to customers across a range of entities within the healthcare industry, including private, not-for-profit, and government entities, as well as pharmaceutical and medical device companies through its direct sales teams. The company was incorporated in 1990 and is headquartered in Nashville, Tennessee.