High-Growth Accounting & Finance

Outsourced accounting and financial services, for entrepreneurs  by  entrepreneurs

 Our Services

Your Finance Department

CFO Services

Senior financial leadership for planning and analysis, governance, risk management, budgeting and capital.


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Accounting & Bookkeeping

Streamline routine operations and optimize transactional efficiency. Get reliable financial data for decision making.


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HR & Payroll

Expert oversight and management of your payroll operations and HR administration. We make sure everyone gets paid.


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Our Purpose

Your Smooth Path to Growth and Scale

Who we are

A small team of finance and accounting professionals, with decades of experience in Venture Capital firms and startups.

What we do

We run a smooth back office and help you make smarter, more informed decisions. Which means your company grows, with fewer bumps on the road.

Who for

We work with venture-backed startups and growth-stage technology companies.

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Key Benefits

High-Growth Results

Financial Services that Build High-Growth Companies

We understand the unique — and dynamic — needs of entrepreneurs. Whether you’re running a venture-backed startup, bootstrapping your way to stardom, or navigating the operational strains of accelerating growth, we can design a service plan that gives you the expertise and transactional resources you need to operate efficiently and strategically.

Ready to Scale

Your business is to built for growth, and your accounting function needs to be too. From simple bookkeeping to on-demand CFO time, we can give you the resources you need to streamline routine operations and make the sound strategic decisions that help drive the growth of the business.

Get Your Time Back

As an entrepreneur, you’re no doubt used to wearing many hats — and you’re probably pretty good at it too! But if you’re trying to build a great company, you need to use your time and talent wisely, and that means offloading the right things to others. Whether your bookkeeping is a spreadsheet and box of receipts or you’re running pretty smoothly on QuickBooks, we can take over routine transactional operations, build robust processes and procedures, and free you up to focus on things only you can do.

Get It Done

Building a company is no easy feat, and while a dynamic visionary is a key component, every successful entrepreneur has a fantastic team helping to make it happen. At Coefficiency, our job is to help you achieve your big dreams — by building a strong operational foundation for you, getting you the financial information and insight you need when you need it, and helping to guide you through key decisions and challenges.

High-Growth Clients

Evan Rosenbaum

CPO / Co-Founder, Genies

"Mike Long has been a fantastic member of the Genies executive team. He has helped us grow from a few employees to over 30 by putting in place practices and systems to enable and sustain growth. His insights have helped us scale our revenue, track spending, and do effective financial projections. Mike and team are key parts of the Genies growth story."

Jon Gowa

CEO, Bloom Automation

"Coffinity has been absolutely essential in allowing our robotics start-up to focus on the technology, not the day to day financials. As a CEO, and a VP of Engineering, my roles are already split thin. Unloading everything from our book-keeping to purchase orders and accounts payables, and even proforma generation and counseling, allows us to focus our time on the nuts and bolts."

Jason Campbell

Co-owner, Slack Tide

"Mike and Annmarie have been a trusted and integral partner in the growth of our company. Their knowledge and guidance from the first day we opened to now has helped our company grow exponentially in the 4 years we have been in business. We could not be happier with their work and focus on helping us grow."


Our Expertise

Coffinity uses and supports the best technologies for managing your Accounting, HR and back office operations.

Ready to Start a Conversation?

Call Mike...

I cannot recommend [Coffinity] highly enough. Indeed, if my son wanted to start his own business today, my first recommendation would be “call Mike"

Bill Melton

Entrepreneur and Venture CapitalisT

Founder of Verifone, CyberCash