

Outsourced Controller Services

Financial Oversight
Fractional Controller
Growing fast? Experiencing reporting friction? Worried about liabilities?
Accurate financial controls, reporting, and compliance aren’t luxuries – they’re essential to kick that stress.
Our seasoned controller team can bring it all under one roof.
Your Financial Partner
A deeper understanding of what it takes.
Our seasoned team offers high-level financial expertise and strategic planning to help you navigate challenges, seize opportunities, and achieve sustained growth, including cash flow forecasting and budgeting.



What does a Controller Do?
Providing Financial Clarity
From crafting reliable monthly financial statements to identifying inefficiencies and embedding best practices, our outsourced controllers empower your organization with clarity and confidence.
Backed by a robust team, your own dedicated controller, and decades of combined experience, we ensure your books support growth and mitigate risk.
- Large-team redundancy
- Future-focused work
- Connects daily bookkeeping and long-term strategy



Dedicated team members
Every client gets a dedicated controller and dedicated accountant. You’re not just another number to us.
Regular Meetings Included
Monthly financial reports and quarterly strategy sessions are included for all our clients, big or small.
Number Techies
We’re leading the charge in accounting & finance software. We’ll have your finance tech stack efficient and effective.
US-Based Office
We’re based near our nation’s capital, just south of beautiful Washington, DC.
Our people
We're proud of our team.
As a Washington DC fractional controller firm, we not only provide our clients with expert accounting and bookkeeping services, but also have fun together and support our local community.
Whether you’re looking for fractional controller services in DC or beyond, we’d love to be a part of your community too.
Testimonials
Rave reviews from companies like yours.
Reasonable price

Mollie Sandidge
Top of their game!

Robert Main
Great suggestions
BBG is a pleasure to work with! We have Mary as our CPA and Guia as our bookkeeper. They are always quick to respond to any questions and are experts in the field, providing great suggestions along the way. I interact with Guia on a consistent basis, and it feels like she’s an internal employee! She and Mary retain details about our recordkeeping off memory, as BBG has been supporting our organization for over a decade! I would be lost without them. Thanks so much for the support!

Audrey Mensah
Tech savvy

Stephanie Kimak
Highly recommend
Highly recommend their services. We have been using Bay Biz accounting and Bookkeeping and tax filing services for more than 10 years as a government contractor and have undergone a DCAA audit for our accounting system with no findings. We have grown and made it on the Inc. 5000 list of fastest growing companies in the US four years in a row and have retained their services through our growing journey. Mary is very knowledgeable and responsive with everything government contracting and is up to date with the latest rules and regulations and compliance with tax law. Jackie has been a pleasure to work with to keep our Bookkeeping up to date. They are very professional and responsive and dependable.

Amina Elgouacem
simply awesome
I was referred to Bay Business Group in 2010 after another CPA made (very costly) mistakes on my 2008 and 2009 Federal and State Returns. Mary Leighty (CPA) has done my taxes since 2010 and I could not be more satisfied. Her work is simply awesome and her communication skills and responsiveness have taken all the stress out of tax preparation season. Thanks Mary!!!

Robert M

No Surprises
Our Fractional Controller Pricing
We don’t hide our fractional controller pricing behind a sales call.
Check out real pricing that real clients are paying for our all-inclusive services.