Top 8 Mercer Competitors & Alternatives in 2025
Updated onFind more companies like Mercer. We've shortlisted leading alternatives and mapped their strengths, pricing, and go-to-market focus.
Mercer
Best for enterprisesMercer is a global professional services firm that provides consulting and solutions in health & benefits, retirement and investments, talent and workforce transformation to help organizations optimize employee outcomes and financial results.
Competitors
#1Est. 1982 • 1k+ employees • Public (NYSE:AON)Aon
Best for enterprisesAon plc is a global professional services firm providing risk, retirement and human capital solutions, including insurance brokerage, reinsurance, and consulting.
- #2
WTW
WTW is a German manufacturer of laboratory, field, and online water-quality measurement instruments (pH, conductivity, dissolved oxygen, photometers, turbidity and spectrophotometers) that operates as a brand within Xylem's Xylem Analytics division.
#3Korn Ferry
Korn Ferry is a global organizational consulting firm that helps organizations design structure, hire and develop leaders, assess talent, and set total rewards using advisory services and technology-enabled products.
- #4
Alight
Alight is a cloud-based human capital technology and services provider that delivers benefits administration, payroll and retirement solutions, HR outsourcing, and data-driven employee experience via its Alight Worklife platform for large employers.
- #5
Buck
Buck is a U.S.-based HR, retirement and benefits consulting and administration firm (now part of Arthur J. Gallagher) that delivers retirement plan consulting and administration, workforce and benefits strategy, and HR advisory services to employers.
- #6
Arthur J. Gallagher & Co.
Arthur J. Gallagher & Co. (Gallagher) is a global insurance brokerage, risk management and consulting firm that provides commercial and specialty insurance, reinsurance, employee benefits and HR consulting services to businesses and organizations.
#7Segal
Segal (The Segal Group, Inc.) is a U.S.-based benefits, retirement, and HR consulting firm that provides employer-focused services including health and retirement plan consulting, investment advisory, insurance brokerage, and organizational and compensation consulting across multiple industries.
#8
Deloitte
Deloitte is a global professional services network providing audit, consulting, tax, risk advisory, financial advisory, and related services to businesses, governments, and nonprofits.
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