Outsourced Accounting Services
in St. Louis, MO
Your Trusted Partner for Business Advisory & Outsourced Accounting Services in St. Louis
Dillon Business Advisors is proud to expand our footprint in the St. Louis area through the recent acquisition of Cole & Company CPA. This strategic merger strengthens our ability to serve local businesses with the same personalized approach Cole & Company clients have come to know—now backed by the broader resources of the Dillon team. Whether you're a small business owner needing outsourced accounting services in St. Louis or looking for expert guidance through our fractional CFO and business advisory services, we're here to help you make confident, informed decisions that support long-term success.

Financial & Business Advisory Services for St. Louis Small Businesses
Discover personalized financial support for small businesses throughout the St. Louis area. From healthcare practices and professional service firms to family-owned companies with big ambitions, we offer the outsourced accounting services you need to grow with confidence. Our fractional CFO and business advisory solutions are tailored to your industry—because no two businesses are the same.
Healthcare Professionals
Professional Service Providers
Family-Owned Businesses
We know that running a family business means balancing relationships and revenue. Our St. Louis team specializes in helping family-run companies navigate complex financial decisions with confidence. From cash flow planning to succession strategies, we're here to support your business—and your family legacy.
Why Work With Us
- Strategic Growth Support
- Proactive Tax Savings
- Dedicated Expert Team
- Accurate, Stress-Free Finances
Tailored Financial Solutions for St. Louis Small Businesses
Business Advisory & Financial Management
At Dillon Business Advisors, we help St. Louis business owners gain financial clarity and confidence. Through our business advisory services and fractional CFO support, we'll help you tackle challenges like unpredictable cash flow and tax surprises—so you can stay focused on what really matters: expanding your business.
Accounting & Tax Services
Leave the spreadsheets to us. Our outsourced accounting services in St. Louis keep your finances organized and tax-ready year-round. From day-to-day bookkeeping to strategic tax planning, our CPA-led team provides peace of mind and time back in your schedule.
Payroll & Bill Pay
Simplify your operations with streamlined payroll and bill pay services. We make sure your employees are paid accurately and on time, vendors are managed professionally, and your admin workload is lighter. With our support, you can focus more on running your business—and less on running the back office.
Partner with an experienced financial team that knows your business
While there may be overlap throughout industries, every business’ financial situation and goals are unique. That’s why we take the necessary steps to become a part of your team, understand what’s holding you back, and map a plan to achieve your goals.
Smooth Implementation
Easy Training
Hit the ground running with knowledge you need to maximize cost-efficiency and minimize wasted time.
Service All Year
Count on us for strategic advice and dependable service that leads to smart decisions all year long.
Financial Insight
Gain accurate core financials that you can trust with deep analysis on revenue, profits, cash flow, and more.
Reliant Compliance
Cut through the confusion and remain in good standing with tax expertise and business management at every level.
Intuitive Technologies
Operate with modern techniques from start to finish with tools that support a seamless digital process.
Let's Build Something Great Together
If you're a small business owner in the St. Louis area looking for outsourced accounting services, fractional CFO support, or trusted business advisor services, we're here to help. Reach out to the Dillon Business Advisors team today to schedule a consultation and discover how our customized financial solutions can support your goals—right here in St. Louis.