Boutique CPA-led accounting & advisory for established Lancaster County businesses

Clarity to Decide.
Confidence to Grow.

Growing businesses face decisions that can make or break their next stage. We give you CPA-led numbers and insight to make them with confidence, through ongoing monthly support or a one-time project tailored to your business.

  • CPA-led and CPA-reviewed
  • Reports on a set date every month
  • Tax-ready books
  • No long-term contracts
  • Based in Lancaster, PA

Growth runs on decisions. Are yours based on numbers you trust?

Growth brings bigger, faster decisions, and the cost of getting one wrong goes up. If any of these questions sound familiar, we can help you answer them.

  • Can we afford to hire, or will it squeeze our cash?
  • Which jobs, products or customers actually make us money?
  • Should we expand, buy equipment or take on debt, and when?
  • Are we priced right, or leaving margin on the table?
  • Revenue is up, so why doesn’t the bank balance show it?

What changes when you work with us

Instead of…You get…
Guessing whether you can afford the next hireKnowing before you post the job
Finding out how profitable you were at tax timeMonthly profit, by job, product or customer
Big purchases made on gut feelDecisions tested against your cash and margins first
Reports that only satisfy complianceA monthly summary of what changed, why, and what it means for your business
Books that are weeks or months behindA clean monthly close, on a set date each month
Scrambling at tax timeTax-ready books in your preparer’s hands early, so you can plan ahead instead of react

Why Conestoga

Bookkeeping is everywhere. A CPA partner isn’t.

As your business grows, the decisions get bigger: when to hire, how to price, where to invest. Making them well takes more than accurate records. It takes a CPA who understands your numbers, explains what they mean and helps you plan what’s next.

Who we work with: established small and midsize businesses that have outgrown basic bookkeeping but don’t yet need a full-time controller or CFO.

Traditional bookkeeping

Primary focus

Maintaining accurate financial records

Financial reporting

Standard financial statements

Looking ahead

Primarily focused on past transactions

Client relationship

Primarily transactional support

The Conestoga approach

Primary focus

Turning reliable financial information into actionable insight

Financial reporting

CPA-reviewed reporting with meaningful business context

Looking ahead

Understanding trends, anticipating challenges and planning for growth

Client relationship

A dedicated accounting partner who understands your business

We also work alongside your tax preparer, with tax-ready books and a clean handoff every year.

Support that grows with you.

Three CPA-led packages, each tailored to your business. Every package includes CPA review of your books and reports.

Foundation

Reliable numbers, the foundation for every decision.

Best for
Owners who need accurate, on-time books
What you get
Monthly close, financial statements, a monthly summary and tax-ready books
Meetings
As needed

Advisory

A financial partner for planning your next chapter.

Best for
Owners navigating growth, expansion or important financial decisions
What you get
Everything in Growth, plus forward-looking analysis, budgeting, forecasting and ongoing guidance to turn your numbers into a practical plan
Meetings
Monthly, plus annual planning

Need help with just one thing? We also offer one-time projects like cleanup, system setup and lender-ready financials, with no ongoing commitment. See projects →

Reports built for your next decision.

Every month you’ll know what happened, why it happened, and what to watch next.

Sample monthly summary page showing revenue, gross margin, net income and cash, with plain-English notes
Monthly summary A one-page summary of revenue, profit, cash and three notes in plain English.
Sample key metrics table with gross margin, current ratio and days to collect
KPI dashboard Growth & Advisory Your key numbers over time, with what each one tells you.
Sample chart showing where the month's cash went
Cash-flow analysis Growth & Advisory Where cash came from, where it went, and what to expect in the months ahead.

Sample — illustrative data for a fictional company.

Christian Mitchell, CPA, President of Conestoga Advisory Group
Christian Mitchell, CPAPresident

Meet the President

Big-firm experience. A more personal approach.

Before founding Conestoga, Christian spent 6 years at PwC, most recently as a Manager in audit and risk advisory, helping some of the world’s largest companies solve complex financial and operational challenges.

He started Conestoga Advisory Group to bring that same level of expertise to small and midsize businesses, giving owners the insight to make confident decisions as they grow, with every client relationship led by a CPA who knows the business and picks up the phone. The goal is to build relationships that last decades.

Outside the office, Christian serves in the Pennsylvania Army National Guard, including a 2024 deployment to the Horn of Africa, and is a graduate of U.S. Army Ranger School. He lives in Lancaster City with his wife and their Labrador retriever.

A clear start, then a steady rhythm.

  1. I

    Initial conversation

    We learn about your business, your current accounting processes and your business goals.

  2. II

    Tailored proposal

    We recommend the right services and provide a clear, fixed-fee engagement proposal.

  3. III

    Onboarding & financial review

    We set up access, assess your existing records, identify any cleanup needs and agree on deliverables.

  4. IV

    Ongoing partnership

    We provide recurring accounting, reporting and advisory services as outlined in your engagement.

Note on cleanup: if your books need catch-up or cleanup before monthly work begins, we’ll scope and price it separately as a one-time project, so you know the cost up front.

Not sure which package fits? Take the 2-minute Find your fit quiz →

Let’s talk

Ready to gain confidence in your numbers?

Book a free 30-minute call. We’ll talk through where your business is today, what you need next, and whether a monthly package or a one-time project fits, with no obligation.

Book a Free Call →

Or send us a message