Delap LLP

Based in the US, Delap LLP delivers a range of professional services including accounting, advisory, and tax consulting, helping businesses effectively manage their financial operations and compliance requirements. Delap LLP is an accounting and consulting firm established in 1933, located in Lake Oswego, US. The company primarily focuses on providing a variety of financial services to clients across multiple industries. In January 2026, Aprio, LLP, a portfolio company of Charlesbank Capital Partners, acquired Delap LLP.

. Delap offers a comprehensive suite of professional services including accounting, advisory, managed IT services, tax consulting, and wealth advisory. Their core offerings assist businesses in navigating complex financial landscapes, providing actionable intelligence derived from financial data, and ensuring compliance with tax regulations. The firm caters to diverse industries such as automotive, construction, food and beverage, manufacturing, and real estate, with a growing presence in global markets through partnerships with international firms.

Delap serves clients ranging from small to medium-sized enterprises to larger corporations, ensuring a broad impact across various sectors. Delap generates revenue through service-based fees for its professional offerings, which include consulting engagements, audits, tax preparation, and IT management. Transactions typically occur on a retainer basis or as one-time service fees, depending on the engagement's nature and scope. Clients may subscribe to ongoing advisory services for continuous support or engage Delap for specific projects like tax compliance and audits.

The pricing structure reflects the complexities of the services provided, ensuring that clients benefit from both the extensive knowledge of a national firm and the personalized service typical of a local provider. In January 2026, Delap LLP was acquired by Aprio, LLP, which aims to leverage this acquisition to expand into the Pacific Northwest region.