What We Do
and Why It Matters
We work alongside your team to bring consistency, structure, and visibility to your finances — every step of the way.
What Drives Us
“We believe business owners deserve financial clarity they can trust. That’s why we help growing companies build reliable systems, gain confidence in their numbers, and make better decisions for the future.”
Tailor Hartman
Founder & CEO
Our Core Behaviors
The principles that guide how we work, how we show up for our clients, and how we build trust every step of the way.
Exceptional Communication
This is where we stand out. We create trust, dispel anxieties, and build relationships with our clients and peers through great communication.
Fun and Fulfillment
We believe work should fuel you, not drain you. We’re creating an environment where passion meets purpose, and success comes with a side of laughter and fulfillment!
Client-Centered Excellence
Our clients are more than numbers, they’re our partners. We go beyond expectations to deliver insights, solve problems, and help them succeed at every stage of their journey..
Continuous Improvement
We commit to learning, growing, and evolving by seeking feedback, experimenting with new ideas, and embracing challenges & change.
Who we are
We’re a team of experts with over 16 years of combined bookkeeping and accounting experience.
Tailor Hartman
Founder & CEO
“We built Celerity to bring clarity and trust back into financial systems — so businesses can finally move forward with confidence.”
Sherrine Taylor
Client Accounting Lead
“Our goal is simple: clean, reliable financials our clients can actually trust and use every day.”
Jackie O'Neil
Accounting Support
“We turn financial data into clear direction, so you always know what to do next.”
Heather Mershon
Staff Accountant
“We design systems that remove friction — so your business can scale without chaos behind the scenes.”
Tessa Lickiss
Bookkeeping & Accounting Specialist
“We create streamlined systems that remove bottlenecks, helping your business grow smoothly without headaches.”
Seng Taylor
Staff Accountant
“Consistency is everything. We make sure your financial operations run right — every single time.”
Jemima Duckworth
Admin & Ops Manager
“We design systems that remove friction — so your business can scale without chaos behind the scenes.”
Tailor Hartman
Founder & CEO
“We built Celerity to bring clarity and trust back into financial systems — so businesses can finally move forward with confidence.”
Heather Mershon
Staff Accountant
“We design systems that remove friction — so your business can scale without chaos behind the scenes.”
Sherrine Taylor
Client Accounting Lead
“Our goal is simple: clean, reliable financials our clients can actually trust and use every day.”
Jackie O'Neil
Accounting Support
“We turn financial data into clear direction, so you always know what to do next.”
Jemima Duckworth
Admin & Ops Manager
“We design systems that remove friction — so your business can scale without chaos behind the scenes.”
Tessa Lickiss
Bookkeeping & Accounting Specialist
“We create streamlined systems that remove bottlenecks, helping your business grow smoothly without headaches.”
Seng Taylor
Staff Accountant
“Consistency is everything. We make sure your financial operations run right — every single time.”
Trusted by 30+ Growing Companies
Supporting businesses running on NetSuite and QuickBooks.
Recognized Industry Leadership
Top 40 Under 40 CPA and Top 50 Modern Accounting Firm.
Built in Madison, Serving Nationwide
Helping businesses across the U.S. gain financial clarity.
Ready to Get Your
Finances on Track?
From fixing what’s broken to helping you plan ahead — we
build financial systems you can trust at every stage.
- No long-term contracts
- Expert team
- Modern stack