PAYCOR HCM, INC.is a leading Software-as-a-Service provider of human capital management solutions for small and medium-sized businesses. Its unified, cloud-native platform is built to empower business leaders by producing actionable, real-time insights to drive workforce optimization. Its comprehensive suite of solutions enables organizations to streamline HCM and payroll workflows and achieve regulatory compliance while serving as the single, secure system of record for all employee data.Its highly flexible, scalable, and extensible platform offers award-winning ease-of-use with an intuitive user experience and deep third-party integrations, and all augmented by industry-specific domain expertise.

Randstad is a leading global staffing and recruitment company based in the Netherlands. Established in 1960, Randstad operates in over 38 countries and provides a broad range of services in the field of human resources. The company specializes in temporary and permanent recruitment, outsourcing, and HR consulting. Randstad connects job seekers with employment opportunities in various industries, including IT, finance, engineering, healthcare, and many others. They offer a wide range of job positions, from entry-level to executive roles. Randstad serves as a bridge between employers and job seekers, actively matching candidates' skills and qualifications with suitable job opportunities. They also provide companies with workforce solutions, assisting in workforce planning, talent acquisition, and HR management. Through their extensive network and experience, Randstad aims to help organizations find the right talent, improve their recruitment processes, and enhance their overall HR capabilities.

Korn Ferry is a global organizational consulting firm that specializes in talent management and executive recruitment. Founded in 1969, Korn Ferry operates in over 50 countries and provides a range of services, including leadership development, executive search, assessment and succession planning, and employee engagement and rewards programs. Korn Ferry is known for its expertise in identifying and developing top talent for businesses around the world. The company works with organizations across various industries to help them align their talent strategies with their overall business objectives. They assist clients in finding and attracting high-performing executives and leaders who can drive business success. Additionally, Korn Ferry offers research and analytics services, providing insights into talent trends, leadership effectiveness, and organizational performance. They aim to help businesses optimize their human capital and create sustainable competitive advantages.

SThree's business is bringing skilled people together to build the future through our global house of specialist recruitment brands. By introducing talented candidates to organisations within the scientific sector, it helps them maintain their research operations into treatments, today and into the future.

isolved offers a human capital management (HCM) platform. The platform helps with payroll processing, human resource (HR) solutions, timekeeping, attendance tracking, and benefits administration. It also offers talent acquisition and management as well as workforce management. Its mission is to to provide the modern workforce with a futureproof platform to deliver awesome outcomes fast.

Automatic Data Processing, Inc. is engaged in providing business outsourcing solutions. ADP offers a range of human resource (HR), payroll, tax and benefits administration solutions from a single source. ADP is also a provider of integrated computing solutions to automotive, heavy truck, motorcycle, marine and recreational vehicle dealers globally. The segments of the Company are Employer Services, Professional Employer Organization (PEO) Services and Dealer Services.

Workday was founded in March 2005 and launched in November 2006. Initially, it was funded by Duffield and the venture capital firm Greylock Partners. In December 2008, Workday moved its headquarters from Walnut Creek, California, to Pleasanton, California, where PeopleSoft founder Duffield's prior company was located. On February 6, 2008, Workday announced that it had reached a definitive agreement to purchase Cape Clear Software. In May 2008, Workday signed a large contract with Flextronics to provide human capital management software services. Companies that have publicly disclosed contracts or deployments of Workday include Aviva, Chiquita Brands, and other firms. On April 29, 2009, Workday announced that it had secured $75 million in funding led by New Enterprise Associates. Existing investors Greylock Partners and Workday CEO and co‐founder Dave Duffield also participated in the round. On October 24, 2011, Workday announced $85 million in new funding, bringing the total capital raised to $250 million. Investors in the latest round included T. Rowe Price, Morgan Stanley Investment Management, Janus, and Bezos Expeditions. As of spring 2012, Workday had 310 customers, ranging from mid-sized businesses to Fortune 500 companies. In October 2012, Workday launched its initial public offering (IPO) on the New York Stock Exchange with ticker symbol WDAY. Its shares were priced at $28 and ended trading Friday, October 12, at $48.69, which "propelled the start-up to a market capitalization of nearly $9.5 billion including unexercised stock options." It sold 22.75 million Class A shares, raising $637 million. The IPO raised more cash than any launch in the U.S. technology sector since Facebook's $16 billion IPO in May 2012. Its shares surged 74% in their IPO, underscoring investor interest in cloud computing. In 2016, Workday launched a cloud-based Student information system to augment its portfolio of financial management and human capital management products. In 2018, Workday acquired Filip Doušek's company Stories.bi. The co-CEO of Workday is Aneel Bhusri, who is a partner with Greylock Partners and handled senior leadership positions earlier in his career at PeopleSoft. In 2020, Chano Fernandez was promoted to co-CEO. Dave Duffield served as the chairman of the board until his resignation in April 2022, after which Aneel Bhusri took over as the chairman. In November 2021, Workdays announced its acquisition of VNDLY, a startup that helps companies manage external workforce personnel, for $510 million. Sequoia Capital's Carl Eschenbach replaced Fernandez as co-CEO in December 2022. The company also announced that Eschenbach would become its sole CEO after January 2024, when Bhusri will move to the role of executive chair. References：Wikipedia

TriNet provides small and medium size businesses (SMBs) with full-service HR solutions tailored by industry. To free SMBs from HR complexities, TriNet offers access to human capital expertise, benefits, risk mitigation and compliance, payroll and real-time technology. From Main Street to Wall Street, TriNet empowers SMBs to focus on what matters most—growing their business. (https://www.trinet.com/hr-services)