Cornerstone Solution, established in October 2025, is a dual-service firm specializing in fractional CFO and accounting services. Our financial division delivers expert financial management, strategic planning, and accounting support to help businesses scale with confidence. We empower clients with financial clarity and digital performance to achieve sustainable success.

We are a family-owned and local Colorado business. We have been servicing the Denver area since 2007. We can provide tax and payroll accounting services for small and medium-sized business. We also provide individual tax preparation.

A full-service accounting firm covering Boulder, Westminster & Broomfield Colorado, Mark Steichen CPA offers a unique mix of accounting and tax services to meet the needs of individuals, small and medium-size businesses, and major clients. Offering an affordable, experienced, and friendly tax accountant service, certified public accountants Steichen CPA are able to satisfy your tax, payroll & financial planning needs.... Read More about Mark Steichen CPA LLC