OnPay vs Kombo
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $100M+ (incl. $63M Series B led by Carrick Capital Partners) in Jan 2025 — first institutional round after bootstrapping 13 years. Targeting 6M+ underserved US SMBs with integrated payroll, HR, benefits.
About
OnPay is a bootstrapped-to-institutional software success story — an SMB payroll and HR platform that grew for 13 years without external capital before raising its first institutional round of $100 million+ in January 2025, including a $63 million Series B led by Carrick Capital Partners. The company targets the 6 million+ US small businesses that are systematically underserved by ADP and Paychex (whose platforms are designed for larger companies) and under-supported by consumer-grade tools like Gusto.
Unified HR integration API connecting 100+ HRIS, ATS, and payroll systems through a single normalized API; $2M ARR within 18 months backed by YC competing with Finch and Merge for HR connectivity.
About
Kombo is a Berlin-based unified HR integration API that enables B2B software companies to integrate with 100+ HR, ATS (applicant tracking systems), and payroll systems through a single standardized API — eliminating the need for each software company to build and maintain separate integrations for every HR system their customers use. Founded in 2022 and a Y Combinator graduate, Kombo serves 200+ customers including Fortune 500 companies, achieved $2 million ARR within 18 months of launch, and has raised funding from YC and other investors.
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