Boston’s finance advisory scene is deep and specialized. Between the Financial District, the Seaport, Route 128’s life-sciences corridor, and the boutiques on the North and South Shores, growing companies across Massachusetts have an unusually strong bench of fractional CFOs, controllers, and CPA firms to draw on. The challenge isn’t finding one — it’s knowing which firm fits the stage, industry, and problem you’re actually trying to solve.
This guide features some of the most recognized accounting and finance firms in Boston, organized by what they’re best at. Every firm below is listed in the FindFinancePros directory — click through to each profile for services, industries served, and how to get in touch.
Why Boston businesses use fractional finance talent
Boston is one of the densest markets in the country for venture-backed technology, biotech, higher education, and professional services firms. Many of those businesses hit a common problem around the $3M–$30M revenue mark: the bookkeeper can’t model next year’s hiring plan, the accountant doesn’t build forecasts, and hiring a $350,000 full-time CFO is a year or two premature. A fractional CFO, outsourced controller, or FP&A consultant fills that gap at a fraction of the cost — and many Boston firms specialize in exactly that handoff.
Top fractional CFO and advisory firms in Boston
AAFCPAs is a best-value CPA firm headquartered in Massachusetts with a Financial District office at 160 Federal Street, offering outsourced accounting and fractional CFO services alongside audit, tax, and advisory.
Withum operates from 155 Seaport Blvd in the Seaport District and is part of the nation’s top 25 accounting and advisory firms, with strong benches in life sciences, technology, and real estate.
LGA LLP is the 4th largest independent CPA firm in Massachusetts, providing audit, tax, business valuation, international tax, and fractional CFO services to middle-market clients across New England.
Graphite Financial serves Boston-area startups with fractional CFO services tailored to biotech and SaaS, with deep knowledge of Massachusetts tax and compliance.
HubCFO is a full-service fractional CFO consulting firm in Boston providing accounting, business planning, and tax services to small and mid-market businesses.
Opus CFO delivers fractional CFO services in Boston, offering strategic financial guidance, budgeting, and growth support for startups and small to mid-sized companies.
Mighty Financial provides outsourced accounting and fractional CFO support for venture-backed and owner-operated businesses across Greater Boston.
Top mid-market and regional CPA firms in Boston
Wolf & Company, P.C. is a leading regional CPA firm founded in 1911 with offices in Boston and Springfield, providing audit, tax, and advisory services to financial institutions, manufacturers, and technology companies.
DGC (DiCicco, Gulman & Company) is a long-standing Boston-area audit and tax firm serving closely held businesses, family offices, and high-net-worth clients.
Gray, Gray & Gray LLP is an 80-year-old Top 200 independent firm headquartered in Canton, MA, delivering tax, audit, advisory, and affiliated private wealth and investment banking services across New England.
Johnson O’Connor Feron & Carucci is a Wakefield-based Top 50 Boston Business Journal firm founded in 1945, offering tax, assurance, M&A, and financial planning across the Greater Boston area.
Baker Newman Noyes is a top-100 tax, assurance, and advisory firm with a Boston office at 10 Post Office Square, known for industry-focused expertise in healthcare, technology, and professional services.
Newburg | CPA is a full-service Waltham firm offering tax, audit, estate planning, management advisory, and 401(k) audits with industry strengths in life sciences, manufacturing, and technology.
Boutique, small business, and niche CPA firms
Tristan CPA is a downtown Boston boutique at 24 School Street providing outsourced accounting, bookkeeping, taxes, and payroll for startups and small businesses. Simon CPAs serves Boston, Braintree, and Westwood with small business accounting, tax planning, and QuickBooks support for medical, dental, legal, and veterinary practices.
FJV CPA operates from One Boston Place with 25+ years of experience in tax, international tax, and M&A advisory for growth-stage businesses. Dimov Associates on Boylston Street handles individual and business tax, financial statements, payroll, and expat/cross-border tax work.
Britt & Company CPA is a Dedham firm providing business accounting, part-time CFO services, and QuickBooks support for Massachusetts small and mid-sized businesses. Daniel Dennis & Company LLP, also in Dedham, specializes in affordable housing, charter schools, and nonprofit audits.
Specialty and niche firms
Wachsler CPA in Burlington offers small business accounting, cryptocurrency tax, IRS resolution, and film industry accounting. James P. Moriarty, CPA in Woburn focuses on wealth management, succession planning, and estate planning for high-net-worth clients.
Peck Associates CPA in Needham works with technology and life-sciences businesses on accounting, QuickBooks, audit, and budgeting. Ryter & Company at 50 Congress Street has served Boston professionals and closely held businesses since 1995 with “small firm personality, big firm capability.”
How to choose the right Boston finance firm
Three filters usually matter most: stage (a $3M agency needs a different firm than a $100M manufacturer), industry (life sciences, SaaS, professional services, and manufacturing all have specialists), and service mix (do you need a fractional CFO, a controller, a tax specialist, or all three?). Our fractional CFO, FP&A consulting, controller services, and bookkeeping category pages each surface the Boston firms that match.
Browse the full Boston directory to compare firms, or get matched with a shortlist tailored to your business.