LAKE OSWEGO, OR, October 26, 2026—Diana Strassmaier, CPA, CCIFP®, Partner and leader of the Architecture + Engineering (A+E) practice at Aldrich CPAs + Advisors, has been named to the Daily Journal of Commerce’s 2026 Oregon 250 in the business category.
The Daily Journal of Commerce’s Oregon 250 recognizes the most influential people in Oregon. Each year, editors spotlight leaders shaping the state’s economy across industries.
“Diana exemplifies the kind of leadership that makes a lasting impact, both within an organization and across an industry,” said John Lauseng, CEO + Partner, Aldrich. “Through her leadership of Aldrich’s Architecture + Engineering practice, she has helped firms navigate increasingly complex business challenges while advancing the knowledge and resources available to the industry. Her ability to combine technical knowledge with a genuine commitment to the success of others has made her an invaluable leader at Aldrich and throughout Oregon’s business community.”
About Diana Strassmaier
Diana Strassmaier, CPA, CCIFP®, joined Aldrich CPAs + Advisors in 2018 and leads the firm’s Architecture + Engineering practice. With more than two decades of experience, she serves architecture, engineering, construction, and government contracting clients, specializing in overhead audits and indirect cost rates. She also provides financial statement services, tax planning, and management and accounting systems consulting.
A frequent speaker at industry conferences, including those hosted by the American Council of Engineering Companies, Diana is also a certified instructor for the National Highway Institute, teaching courses on the AASHTO Audit Guide and indirect cost rates.
Her recent honors include being named a Forbes Best-in-State CPA for Oregon in 2026, one of Forbes’ America’s Top 200 CPAs in 2025, and a 2023 Woman of Vision by the Daily Journal of Commerce.
Aldrich is Joining CohnReznick
Aldrich has announced that it will be joining CohnReznick, a leading national professional services firm with offices across the United States. Joining CohnReznick will expand the resources, services, and specialized capabilities we can bring to our clients while continuing the relationships and personalized service that have defined Aldrich for more than 50 years. The transaction is expected to close in December 2026.
About Aldrich
For more than 50 years, Aldrich has worked with businesses, their owners, and their employees to help them achieve their professional and personal financial goals. The firm pairs deep industry experience with a full suite of integrated financial, tax, accounting, wealth, corporate retirement, business transition, and consulting services to help bring clarity to every phase of our clients’ personal and professional life cycles.
The Aldrich group of companies is composed of Aldrich CPAs + Advisors LLP, one of the top 75 accounting firms in the U.S.; Aldrich Wealth LP, a Registered Investment Advisory firm with over $8 billion in assets under advisement (as of August 25, 2026); Aldrich Capital Advisors LP, which provides advisory services for business transactions; and Aldrich Solutions LLC, which delivers business and technology consulting services driven by industry understanding and strategic insights.
Based in Oregon since its founding in 1973, Aldrich now serves clients across the country from its eight offices throughout the Western U.S.
Learn more at www.aldrichadvisors.com/about.
