eden prairie chamber of commerce

Olsen Thielen: A Hands-On, Full-Service Partner for Small Businesses

For more than a century, Olsen Thielen has been serving Minnesota businesses with a steadfast commitment to proactive, hands-on client service. Founded in 1921, the full-service CPA firm has built its reputation on trust, expertise, and a genuine dedication to helping businesses thrive. While tax and audit services are the cornerstones of most accounting firms, Olsen Thielen goes far beyond compliance, offering a full range of services designed to meet the many needs of small business owners.

At the Eden Prairie office, the focus is on building long-term relationships with small business clients across industries - from healthcare to financial services, contractors, manufacturers, and more. Andrea Addo, Principal at Olsen Thielen, explains:

“We take a team approach, so our clients aren’t dependent on just one person. They have access to our entire team, including our principals, ensuring they always have knowledgeable support when they need it.”

More Than Just Taxes

Olsen Thielen offers an expansive suite of services, including:

  • Audit and tax services for businesses of all sizes
  • Consulting on regulatory compliance, valuations, transaction advisory services, estate and trust planning, and more
  • Client Advisory Services (CAS) such as outsourced controller/CFO work and bookkeeping
  • Specialized services in fraud and forensics, telecommunications, and SOC audits

This breadth of expertise allows the team to support clients at every stage of their business journey, from daily bookkeeping to complex business transitions or sales.

A Proactive, Year-Round Approach

One of the firm’s defining strengths is its ongoing engagement with clients. Rather than connecting only at tax time, the Olsen Thielen team stays in regular contact through

quarterly check-ins, tax planning discussions, and timely updates on legislative changes or industry trends.

“We help clients apply their numbers to make better business decisions,” Andrea shares. “Whether it’s reconciling accounts, creating a budget, or preparing for a sale or generational transition, we’re there every step of the way.”

Their proactive communication also includes access to resources like blogs, podcasts, and content on timely topics and industry changes—ensuring clients are informed and equipped to navigate both opportunities and challenges.

Why One Full-Service Partner Matters

Working with a single accounting partner who understands all aspects of a business’s finances offers significant advantages. Olsen Thielen’s integrated approach ensures that no detail gets lost between multiple providers.

From accurate financial statements to tax strategy, retirement planning, and beyond, the firm coordinates all aspects of a client’s financial picture, helping them make informed decisions while maximizing opportunities.

Understanding the Challenges & Trends for Small Businesses

Andrea notes that small business owners today face a fast-changing environment—complex tax laws, staffing shortages, and the ever-growing role of technology and AI. The team at Olsen Thielen helps clients navigate these challenges while keeping an eye on emerging trends like automation and cybersecurity that may shape the future of their industries.

Personalized Support, Meaningful Impact

For Andrea, the most rewarding part of working with small businesses is the personal connection and tangible impact:

“With small businesses, you often work directly with the owners, and many are family-run. You become part of that family and their community. It’s fulfilling to know your work directly supports their success.”

Her advice for small business owners when choosing an accounting partner? Find someone you trust who understands your industry and can grow alongside your business.

About Olsen Thielen

With over 100 years of service, Olsen Thielen remains committed to helping Minnesota businesses

 succeed through personalized attention, a full range of accounting and advisory services, and a collaborative team approach. Whether it’s day-to-day bookkeeping, complex audits, or strategic business planning, their Eden Prairie team is ready to help small businesses thrive. Learn more about Olsen Thielen at www.otcpas.com.



If you're interested in having an interview for a member blog, please email Grace Leapaldt at grace.leapaldt@epchamber.org for more details!    

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Eden Prairie Chamber of Commerce

10925 Valley View Rd,
Eden Prairie, MN 55344
Telephone: (952) 944-2830
Fax: (952) 944-0229
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