# OneSource Virtual

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/onesource-virtual

- Industry: Software
- Headquarters: Dallas, US
- Website: www.onesourcevirtual.com
- Total disclosed funding: $165M
- Latest round: Series B (Jun 4, 2015)
- Investors on record: 2

## About

OneSource Virtual, Inc. is a provider of business process solutions focused on enhancing operational efficiency for Workday customers, particularly in Human Capital Management and financial services. OneSource Virtual, Inc. was founded in 2008 and is headquartered in Dallas, US. The company specializes in delivering business process solutions. It has undergone a strategic pivot to focus more on HR, Payroll, Finance, and Accounting Business Process as a Service (BPaaS). Brian Williams founded the company. In January 2026, TA Associates acquired a majority stake in OneSource Virtual, Inc. from Halyard Capital and TCV. OneSource Virtual (OSV) specializes in providing comprehensive business process solutions designed primarily for Workday customers, focusing on Human Capital Management (HCM) and financial services. Their core offerings encompass payroll administration, payroll tax management, benefits administration, and accounts payable (AP) and invoice services, all leveraging advanced automation and patented in-tenant technology to enhance operational efficiency and data visibility. OSV’s payroll services ensure accurate and timely payroll processing, while benefits services aim to prioritize employee welfare through effective management of benefits and financial well-being solutions. By integrating AI and machine learning with human expertise, OSV assists clients in streamlining their financial operations. OSV primarily serves businesses in North America, providing solutions tailored to companies across various industries that utilize Workday software. The revenue model for OneSource Virtual is structured around B2B transactions, where clients engage with the firm for specialized services on a contractual basis. Clients typically enter subscription agreements for ongoing payroll, benefits, and AP services, which may include tiered pricing based on the volume of transactions or the scope of services utilized. For instance, a company may subscribe to OSV’s payroll services at a fixed monthly fee, which covers payroll processing, tax management, and compliance support. Additionally, OSV’s benefits administration services are offered as part of a comprehensive package or as standalone solutions, depending on client needs. By providing a suite of integrated services, OSV positions itself as a vital partner in optimizing operational processes for its clientele, thereby enhancing their Workday investment. In January 2026, TA Associates acquired a majority stake in OneSource Virtual, Inc. from Halyard Capital and TCV. The investment will enable the company to accelerate its growth.

## Funding rounds

- Series B, Jun 4, 2015, $150M — TCV, Halyard Capital
- Series A, Mar 6, 2013, $15M — Halyard Capital

## Investors

- Halyard Capital (https://capitalatlas.ai/funds/halyard-capital) — Series A, Series B
- TCV (https://capitalatlas.ai/funds/tcv) — Series B