Practice Profile & Ethos

Direct, personal bookkeeping for independent business owners

Why Lagrange was founded, who manages your books, and our operating philosophy.

Patrick Dineen, Founder
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Patrick Dineen, FounderBackground in M&A, investment funds, and small business advisory.

Patrick Dineen

Founder

I'm Patrick Dineen. I've spent most of my career in finance, and most of it around small businesses.

I started by running a done-for-you agency serving more than a hundred small businesses. I know what it looks like when an owner is doing everything: running the crew, chasing invoices, and putting off the books until April.

From there I moved into mergers and acquisitions, valuing businesses and helping owners sell them, and into supporting investment funds and financial advisors. That work is mostly reading financial statements and deciding what they actually mean.

It also taught me something specific. Deals get repriced or fall apart over bookkeeping. Not fraud, not bad businesses, just books nobody kept clean. An owner spends fifteen years building something and then discounts it because they cannot prove what it earned.

That is fixable, and it is cheap to fix if you start now. Clean books are not just about tax season. They tell you what your best month actually was, which jobs make money, and what your business is worth.

That is the whole reason this exists.

Professional Credentials & Standards

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M&A & Valuation Experience
Transaction diligence & deal valuation
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100+ Small Businesses Served
Hands-on done-for-you agency leadership
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Investment Funds & Advisory
Financial modeling & statement analysis
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14+ Years Field Experience
Small business advisory & unit economics
Quality Assurance

Our Operating Standards

No algorithmic shortcuts. We employ the strict month-end reconciliation protocols used by institutional accounting desks.

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Reconciled to Real Statements, Not Just Feeds

Bank feeds glitch, drop entries, and duplicate transactions. We manually match every balance against monthly PDF bank and credit card statements before closing any period.

done_all Zero unverified clearing balances
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Industry-Specific Chart of Accounts

A plumbing contractor needs a fundamentally different expense structure than a retail boutique. We tailor your accounts so your numbers reflect the actual unit economics of your trade.

done_all Accurate job-costing & COGS
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Direct Accountant Sign-Off

No work is automated and forgotten. Every single monthly close is personally reviewed and verified by a licensed accountant before the financial package reaches your desk.

done_all CPA review on every month-end
Accessibility & Respect

Clear communication. No ticketing systems.

When you have a question about cash flow or a pending vendor payment, you need an immediate answer, not a support queue ticket.

schedule 4-Hour Target

Same-Day Response Time

Email or call during standard business hours (8am–5pm CST) and get a concrete response within 4 hours. No robotic confirmation emails or pending ticket statuses.

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Named Human Contact

You receive the direct direct line and personal email of your dedicated lead bookkeeper. You never have to re-explain your trade or operational setup to a stranger.

phone_in_talk Monthly Review

Optional Monthly 20-Minute Call

After your financial packet is delivered on the 10th of each month, jump on a short call to review cash positions and margins, or simply file it away if your numbers speak for themselves.

Work with a bookkeeper who understands your business.

Schedule a 20-minute introductory call with Patrick today. We will review your current systems, volume, and exact reporting requirements.