Cornerstone Tax & Accounting

$3.6M revenue • 756 employees • 234 Oakton Ave, Pewaukee, WI, 53072, United States

Last Updated Oct 14, 2025

Company Overview

Company Name

Cornerstone Tax & Accounting

Address

234 Oakton Ave, Pewaukee, WI, 53072, United States

Approx. Annual Revenue

$3.6M

Employees

756

Established

2011

About Cornerstone Tax & Accounting

Cornerstone Tax & Accounting, L.L.C. is a leading accounting agency based in Okauchee, Wisconsin, serving Lake Country and Waukesha County since 2005. The company specializes in individual and business tax services and has approximately 756 employees.

Frequently Asked Questions about Cornerstone Tax & Accounting

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Key Decision Makers

Ruth Eddingsaas Owner