Fort Lauderdale, Fla. – December 22, 2025 – Engage PEO, a leading professional employer organization providing HR outsourcing solutions to small and mid-sized businesses across the U.S., announced today the acquisition of Aspen HR, a San Francisco-based PEO.
Founded in 2017, Aspen HR has built its business serving employers across the country, especially California, with depth in alternative investment firms, professional and financial services, fintech, software, and healthcare clients. The company is recognized for being one of the fastest-growing PEOs in the country since inception.
Engage's latest acquisition is another milestone in its ongoing growth as a top 10 national PEO and one of the country's fastest-growing companies. By merging Aspen HR’s regional and industry expertise with Engage’s compliance-focused HR consulting from employment law experts, advanced risk management capabilities, and access to cost-effective employee benefit programs, the deal enhances Engage’s position in both California, the nation's largest and most complex labor market and in the alternative investment industry.
"Engage and Aspen share so many qualities – strong growth trajectories, commitment to employees and to clients, and never-ending commitment to doing things the right way,” said Jay Starkman, Chief Executive Officer of Engage. "This acquisition expands Engage’s geographic reach and adds expertise in providing HR services to alternative investment firms and their portfolio companies, an area Aspen has developed unrivaled expertise. It underscores Engage’s commitment to investing in markets where employers face complex HR challenges and want support from true experts, not generalists.”
“Joining forces with Engage PEO is a natural next step,” said Mark Sinatra, CEO of Aspen HR. “Our philosophy has always been that we are not a one-size-fits-all PEO. We work best with clients who see HR as a way to reduce risk and invest in their employees. Those clients expect responsiveness, continuity and advisors who understand their industries. While some competitors rely solely on software or AI-driven service, we believe technology should enhance, not replace, human expertise. By combining forces with Engage, clients and prospects can continue to receive the same high touch services and now have access to Engage’s expanded resources.”
Both companies also emphasize helping employers provide affordable access to health insurance and other employee benefits, enabling small and mid-sized businesses to compete more effectively for talent.
Jones Day acted as legal advisor for Engage PEO in connection with the acquisition. Benesch Friedlander Coplan & Aronoff LLP acted as legal advisor for Aspen HR.
About Engage PEO
Engage PEO delivers comprehensive HR solutions to small and mid-sized businesses nationwide, sharpening their competitive advantage. Comprised of the industry’s most respected veteran professional employer organization executives, certified HR professionals, and attorneys, Engage PEO provides hands-on, expert HR services and counsel to help clients minimize costs and maximize efficiency for stronger business performance. The company’s superior service offering includes a full range of payroll technology and tax administration, employer compliance, health and workers’ compensation insurance products, advanced technology, and risk management services as part of an extensive suite of HR services.
Engage PEO was among the first PEOs awarded the Certified Professional Employer Organization (CPEO) designation by the Internal Revenue Service (IRS), ensuring greater benefits for small and mid-sized businesses, such as tax advantages and financial protections. Engage PEO is also accredited by the Employer Services Assurance Corporation. Engage PEO was named to Inc. magazine’s list of the 5000 fastest-growing companies nine times since 2016. For more information on Engage PEO, visit www.engagepeo.com.
About Aspen HR
Aspen HR is a white-glove Certified PEO that empowers businesses to focus on growth by providing a comprehensive suite of HR solutions. We offer a single source for payroll, benefits administration, HR compliance, risk management, and 401(k) plans. Our exceptional service and industry expertise have helped us achieve a remarkable client retention rate and earn recognition as a top performer on the Inc. 5000 list and the San Francisco Business Times’ 100 Fastest-Growing Private Companies list for several years in a row. Aspen HR has offices across the country and serves clients across all 50 states.