Problem

Kombo addresses the integration problem in the fragmented workforce-software ecosystem. People data is spread across siloed HRIS, ATS, payroll, assessment, and learning systems, each with different APIs, data models, authentication requirements, and edge cases. For an HR-tech or SaaS company, building and maintaining native connections to every system requires substantial engineering and support effort; connectivity can also determine whether a prospect closes, while Europe’s especially fragmented software landscape makes international expansion expensive and slow.

The killer use case is an HR or workforce-software vendor that needs to connect its product to the systems already used by each customer. Instead of assigning an engineering team to build dozens of integrations, the vendor can use Kombo to onboard customers and synchronize workforce data. Moss’s case study illustrates the economics: it reported more than 1,350 customers with an active integration after rollout, implementation time of less than one sprint, and a cost amounting to a fraction of one engineer.

Product / Service

Kombo is a B2B integration-infrastructure and unified-API service. A customer builds once against Kombo’s standardized data model and can then connect to 250-plus HRIS, ATS, assessment, payroll, and LMS systems. The API supports both reading and writing data—for example, employees, employments, absences, jobs, candidates, applications, documents, and time-off requests—while Kombo handles system-specific mappings so the customer uses consistent endpoints, fields, and formats.

The service also includes authentication flows, synchronization monitoring, searchable logs, webhooks, sandbox access, documentation, and technical support. Kombo sells tiered plans using a fixed annual platform fee plus a variable fee for each end-customer connection, with the per-customer cost declining as usage scales; most customers can get their first integration live within one to two weeks. This delivery model shifts ongoing integration maintenance and support away from the customer’s engineering team, allowing it to offer more integrations and launch features or enter new markets faster.

Market

Kombo competes in unified APIs and integration infrastructure for HR technology and workforce data, with a particular focus on the future-of-work ecosystem. Its coverage spans HRIS, ATS, payroll, assessment, and LMS systems, positioning it against providers such as Merge, Finch, Knit, and Bindbee. Kombo differentiates through specialized HR focus, broad US and European coverage, deep read/write functionality, sandbox availability, and hands-on technical support; companies seeking accounting, CRM, or other non-HR integrations may need a different specialist alongside it.

Kombo is an operating commercial company rather than a pre-revenue project. In February 2026 it announced a $25 million Series A led by Volition Capital, bringing total funding since its 2022 founding to $30 million. The company said it worked with more than 300 companies, including Indeed, Paychex, Thatch, HireVue, Mercor, Juicebox, Edenred, and Gem, while its customer case studies include quantified outcomes such as CV-Library increasing candidate applications by 300 percent. Kombo also states that its infrastructure supports hundreds of companies with 99.9 percent uptime.