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Bookkeeping Services, Southern Maine

Supporting Strategies | Southern Maine: Portland Bookkeeping Services

Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.


Take your business to the next level with up-to-date financial data, cloud-based bookkeeping and financial analysis from a team of experts. Our full suite of bookkeeping and controller services includes accounts payable, accounts receivable, bookkeeping, financial analysis, month-end close, and payroll administration. With a proven process, consistent bookkeeping practices and best-of-breed technology, you’ll have the financial information you need to make informed decisions.

Supporting Strategies | Southern Maine provides personalized bookkeeping and controller services in Portland, Maine and surrounding areas, including:

  • Biddeford
  • Brunswick
  • Freeport
  • Kennebunk
  • Kennebunkport
  • Kittery
  • Lewiston-Auburn
  • Ogunquit
  • Portland
  • Saco
  • York

We excel at customer service, studying your business model and customizing our bookkeeping best practices and best-in-breed technology to address your specific needs. Our people are experienced professionals who take a team approach to bringing you the best in bookkeeping, operations and controller services.

Bookkeeping for Portland, Maine's Industries and Economy
As a thriving seaport with scenic mountains and stunning beaches, Portland, Kennebunk, Kennebunkport and its environs appear postcard-perfect. But our hardworking community knows the region's success is no accident of nature. We take tremendous pride in our local businesses, with our status cemented as both a manufacturing powerhouse and foodie favorite. Southern Maine is also a hardworking center of production, healthcare, education, services, tourism, technology and retail.

Supporting Strategies | Southern Maine provides bookkeeping and controller services to businesses in Portland, Maine in a variety of industries including manufacturing and distribution, general contractors and trade, professional services and marketing. Earle’s broad corporate experience working for private equity owned operating companies in the manufacturing industry brings a valuable perspective to his manufacturing and distribution clients. Earle was involved in management presentations, both from the buy- and sell-sides, providing insight into the buyer’s value in businesses.

Ready to learn how you can strengthen your business with bookkeeping and controller services? Schedule your FREE Consultation with Supporting Strategies | Southern Maine today.

Learn how the Supporting Strategies model helps growing businesses be successful.
Earle Durham, Bookkeeping Services, Southern Maine

Meet Southern Maine Managing Director Earle Durham

(207) 422-7062


Earle is a student of the world who draws inspiration from learning about new people, cultures and communities — but he's most animated when partnering with others to solve difficult business challenges. A strategic thinker, he has applied his analytical skills to benefit countless organizations, most recently in his work bringing outsourced bookkeeping and controller services to Portland, Maine businesses.

Earle, who launched Supporting Strategies | Southern Maine in 2017, also founded the networking group Southern Maine Business Advisors to give local business leaders more opportunities to share ideas. He earned a Bachelor of Science from Rutgers University and completed coursework in the MBA programs at York College of Pennsylvania and the University of Baltimore. Along with his wife Ann, he enjoys traveling, hiking, snowshoeing, kayaking, photography and the many fine restaurants in the area.



Q: What bookkeeping and controller services do you provide?

Supporting Strategies provides a full range of bookkeeping and controller services, including revenue and accounts receivable; expenses and accounts payable; HR and payroll; day-to-day bookkeeping and month-end close; and financials, planning and analysis.

Q: We are looking to replace our onsite bookkeeper and haven't used an outsourced bookkeeper before. Would it be a difficult transition?

Supporting Strategies works with many clients who are new to using outsourced bookkeeping services. Many of our clients previously had a bookkeeper on-site. With outsourced bookkeeping, they benefit from our high-level expertise and efficient processes while saving on office space and employee costs. Plus, Supporting Strategies' team-based workflow model ensures checks and balances are always in place, minimizing the likelihood of errors.

Q: What is your bookkeeper hourly rate?

Supporting Strategies provides right-size bookkeeping and controller services for a range of businesses. Whether you own a startup or an established and growing business, we offer bookkeeping and controller services at a level that works for you. We take a custom approach to bookkeeper hourly rates or pricing packages, depending on the size, needs, and growth goals of each business. Contact us now to learn how outsourced bookkeeping and controller services can help you take your business to the next level.


Latest Blog Posts

Latest Blog Posts

Safeguard Your Business With These Fraud-Prevention Tips

Learn how you can protect your business with these bookkeeping best practices. The key one? Make sure you have more than one person handling your finances. A range of businesses, from restaurants to tractor repair firms, have lost hundreds of thousands of dollars to embezzlement or fraud. The common... Read more

Three Tips to Stay Up to Date on Cash Flow in Your Business

If you're one of the vast majority of businesses feeling the impact of the coronavirus pandemic, these are unsettling times. One way to protect your business' health is to regularly monitor and forecast your cash flow. With that in mind, here are three tips to ensure your cash flow keeps pace with y... Read more

How the New Tax Law Will Impact Your Business

The new-for-2018 tax bill, a.k.a. the Tax Cuts and Jobs Act (TCJA), will have a wide-ranging impact on businesses of every size. And while it's too soon to fully process all the implications of such a massive piece of legislation, we can certainly take a high-level look at some of the changes. Focus... Read more