Fractional CFO Services for Greater Boston Companies

Headquartered in Greater Boston, Ignition Consultants is a strategic fractional CFO firm, also known as outsourced CFO or interim CFO services, for the founders, owners, and operators who run Boston's growth-stage and middle-market companies. Big Four sophistication with the agility of a senior team that has been in the room for hundreds of capital events.

$3B+
in capital raised and transactions
250+
clients served
Big Four
sophistication, startup agility

Trusted by Boston Companies

250+ companies have relied on Ignition's Strategic CFO team.

Last updated: April 30, 2026

About Ignition Consultants

Ignition Consultants is a strategic fractional CFO firm headquartered in Greater Boston, serving owner-operators, family businesses, professional services firms, and growth-stage companies across the region and the broader Northeast.

Boston business owners looking for the best fractional CFO firm for their stage typically arrive at one of three doorsteps: a top-quartile finance function for ongoing operations, a team that has been in the room for serious capital events, or senior judgment for moments when the margin for error is zero. We do all three, whether the engagement is structured as an embedded fractional CFO, an outsourced CFO function, or interim CFO coverage during a transition.

Our founder, Craig Gainsboro, spent 15 years as the U.S. CFO of PricewaterhouseCoopers' Tax and Advisory Lines of Service before building Ignition into a 15+ person firm serving 250+ clients. Our team has been in the room for over $3 billion in capital raised, credit facilities arranged, and transactions supported across Boston-area companies and growth businesses nationally.

What makes us structurally different is the team itself. Most fractional CFO firms send you one strategic person who ends up doing junior work because there is nobody else to do it. We built a tiered team so the senior CFO is in the boardroom (or the owner advisory meeting, or the lender call) when the moment requires senior judgment, while the rest of the team handles the recurring close, modeling, and reporting work.

That is Big Four sophistication with startup agility. It is why Boston founders, owners, and CEOs hire us when it matters most.

What Boston Companies Call Us For

Most of the founders, owners, and CEOs we work with arrive at one of a few specific moments. The category names (fractional CFO, outsourced CFO, interim CFO, part-time CFO) describe what we do. The moments below describe why people actually pick up the phone.

Industries We Serve in Boston

Tailored finance function for the industries that drive the Greater Boston economy:

Construction and Real Estate

Boston's construction and real estate ecosystem includes some of our deepest client relationships. Multi-entity structures, complex cash management, project-based revenue recognition, bonding and surety relationships, and bank relationship management all require senior finance judgment. We support general contractors, real estate developers, property management firms, and specialty trade businesses across the region.

Professional Services and Multi-Site Service Operators

Law firms, consulting firms, accounting practices, marketing agencies, dental and orthodontic groups, veterinary practices, and other multi-location service operators. Partner economics, cohort analytics, multi-site consolidation, and the financial reporting structure these businesses need as they scale or prepare for a transition. Particularly relevant for services firms preparing for sale, succession, or generational handoff.

Manufacturing, Distribution, and Logistics

Greater Boston manufacturers, specialty distributors, and logistics operators with inventory complexity, working capital intensity, and multi-location operations. We support cost accounting, gross margin analysis, working capital management, and lender reporting for the operating businesses that anchor the regional economy.

Family Businesses and Owner-Operated Companies

Multi-generational and owner-operated businesses across sectors. Translation from owner-operated bookkeeping to audit-grade or successor-ready reporting, often without disrupting a long-standing relationship with the CPA who got the company here. Particularly relevant for family business transitions, succession planning, and the financial maturation that comes with generational handoff or sale.

Technology, SaaS, and AI-Native Companies

Boston's technology ecosystem includes operating businesses across SaaS, AI-native, hardware, and enterprise software. We embed as the finance function for technology companies, building the model, organizing reporting, and supporting capital events, audits, and lender relationships.

Biotech, Life Sciences, and Healthtech

Cambridge and the Greater Boston biotech corridor produce companies with longer revenue runways, higher capital intensity, and complex diligence patterns. We support biotech and life sciences finance work with industry-specific modeling for milestone-based funding, grant accounting, and strategic partnership economics.

Why Work With a Boston-Based Firm

Boston operates differently from the way a national remote-first fractional CFO firm assumes business gets done. Lender relationships matter more here, and the lenders themselves cluster locally. Audit firms, transaction counsel, and regional law firms have deep Boston-area roots. Boards (where they exist) tend to be more involved, and owner-advisory relationships are often face-to-face.

Generic national fractional CFO firms do not have these relationships. We do. Our team has been the embedded fractional CFO for Boston-area companies for over a decade, with deep familiarity across Boston-area banks, lenders, audit firms, and transaction counsel.

When Boston business owners evaluate the top fractional CFO firms in their market, whether they are mid-market operators, growth-stage companies, or owner-operated firms, they consistently look for three things: ecosystem familiarity, in-person availability, and a team-not-solo structure. We are built around all three.

Face-to-Face Meetings Where They Matter

Unlike national fractional CFO firms that show up via Zoom, we attend your Boston-area board meetings, owner advisory sessions, lender presentations, and audit kickoffs in person. The work is fundamentally different in person, and the people on the other side of the table notice.

Boston Ecosystem Density

We know how Boston-area lenders structure credit facilities, term loans, lines of credit, and asset-based lending. We know which audit firms work well with which company stages and industries. We know how the major Boston-area transaction counsel approaches sell-side and buy-side diligence.

Local Lender and Service Provider Relationships

Standing relationships with the major Boston-area banks, regional lenders, audit firms, transaction counsel, and 409A specialists. The day you need any of them, you do not make a cold call.

Faster Response, In-Person Support

Local presence means we can respond to a crisis in hours, not days. When your refinancing is closing, your audit fieldwork is starting, or your board meeting is tomorrow, geographic proximity matters.

For more detail on our full service offering, see the Ignition Consultants Fractional CFO Services page.

Embedded Fractional CFO Work Across Greater Boston

Remote-only fractional CFO arrangements have their limits, especially for companies in active capital events, audit cycles, or operating under a tight board or owner advisory structure. We provide embedded, in-person finance leadership across the Greater Boston area.

We work side-by-side with your team to:

  • Embed in your operations. Senior CFO presence in your office for regular work sessions, not just for board meetings.
  • Run board and advisory meetings live. Senior partner attends board meetings or owner advisory sessions in person, presents financials, and handles questions directly.
  • Coordinate with your existing team. We work alongside your CPA, your bookkeeper, your accounting firm, not against them.
  • Manage your lender and audit relationships. Direct relationship with your existing financial service providers, not requiring you to introduce us each time.

Service Areas

Downtown Boston, the Financial District, the Seaport District (Innovation District), Back Bay, Beacon Hill, Cambridge (Kendall Square, Harvard Square, Central Square), Somerville, Newton, Waltham, Watertown, Brookline, Dedham, Needham, Westwood, the MetroWest corridor (Framingham, Natick), the North Shore, the South Shore, and the broader 128/495 corridor.

Our Boston Fractional CFO Process

We do not guess. We follow a structured framework refined across hundreds of engagements, adapted to each company's specific stage, industry, and trigger moment.

Step 1

Diagnostic Call

Thirty-minute call with Craig or another senior partner. We identify what is broken (or about to break), what success looks like at 30, 60, and 90 days, and whether we are a fit. No questionnaire required first.

Step 2

Scope Document

Within 48 hours of the diagnostic, we send a focused scope document: named team, cadence, deliverables, price. Not a marketing-as-proposal artifact, just the working scope.

Step 3

Embedded Engagement

Engagement starts within two weeks. Senior CFO embeds first to absorb context. The rest of the team layers in over the following weeks. By week 6, your finance function runs on our infrastructure.

Step 4

Board-Ready or Lender-Ready in 60 to 90 Days

The first board meeting, owner advisory session, or lender presentation after engagement start is materially different. The variance commentary makes sense. The KPI dashboard is consistent. The cash position is current. The forecast holds up under questions. The people across the table notice.

Fractional CFO Services We Provide in the Greater Boston Area

Our service offerings cover the full range of senior finance work for Boston-area companies, whether you need an embedded fractional CFO, an outsourced CFO function, an interim CFO during a transition, or a part-time CFO arrangement. The terminology varies. The work is the same.

Embedded Fractional CFO Function

Continuous monthly engagement covering ongoing senior finance work. Senior CFO presence in board meetings or owner advisory sessions, monthly close oversight, KPI reporting, on-call strategic capacity for hiring, pricing, and capital decisions. The most common engagement model for Boston-area companies that have outgrown a founder-or-owner-as-CFO setup.

Books Cleanup and Controllership

Full historical cleanup, chart of accounts rebuild for industry-appropriate reporting standards, monthly close discipline, and reconciliation procedures across all accounts. Specifically designed for companies whose bookkeeper or controller setup has plateaued and needs senior structure layered on top.

Strategic Financial Modeling and Cash Forecasting

Three-statement financial model build, 13-week rolling cash forecast, scenario modeling for hiring, pricing, capital, and growth decisions. The model is built once, maintained monthly, and stays with the company when the engagement ends.

Bank, Lender, and Audit Relationship Management

Senior CFO presence in lender meetings, covenant reporting, line of credit renewals, refinancings, audit kickoffs, and audit fieldwork support. Direct relationships with the major Boston-area banks and regional lenders mean introductions when you need them.

Owner-Operated to Audit-Grade and Sale-Ready

You have built the business yourself. Your CPA does taxes, your bookkeeper closes the books, and you sign every check. That setup worked for years. It will not survive a serious audit, a sophisticated buyer's diligence, a strategic sale, or a bank that wants three years of clean financials before extending credit. We translate owner-operated bookkeeping into the kind of reporting structure that holds up under scrutiny, without disrupting your relationship with the CPA who got you here. Particularly relevant for owners preparing for sale, succession, audit, refinancing, or a serious bank or surety relationship.

M&A and Sale Preparation

Sell-side preparation, buy-side diligence support, deal structure review, and post-close integration. Our team has experience from many successful (and difficult) transactions. We help structure deals, manage diligence processes, and integrate financial systems post-close. Particularly relevant for Boston-area companies receiving acquisition interest or planning a strategic acquisition.

Capital Strategy: Bank Debt and Lender Relationships

Strategic capital work for companies past the early stage. Senior debt and credit facility structuring, asset-based lending review, line of credit renewals, refinancing strategy, and lender relationship management. Includes lender introductions from our standing Boston-area relationships.

Interim CFO Coverage

Coverage during a CFO or VP Finance transition, M&A integration, restructuring, or other moments when senior finance leadership is required immediately and continuity matters. We are usually in seat within two weeks of signed scope.

From Founder-CFO or Owner-Operator to Board-Ready: Your Engagement Path

Senior CFO Onboarding (Weeks 1 to 2)

  • Full review of historical financials, ownership structure, and existing reporting
  • Mapping of current accounting infrastructure (QuickBooks, NetSuite, Sage Intacct, payroll systems)
  • Identification of immediate fixes vs. medium-term restructuring
  • First board meeting, lender meeting, or audit kickoff prep if one is scheduled within 30 days

Books Stabilization (Weeks 2 to 6)

  • Bank, credit card, and payroll reconciliations brought current
  • Chart of accounts rebuilt for industry-appropriate reporting standards
  • Revenue recognition cleaned up by industry: deferred revenue for SaaS, project-based recognition for construction and services, inventory accounting for manufacturers and distributors
  • Monthly close cadence established

Strategic Finance Function (Weeks 4 to 8)

  • Three-statement financial model built and tested
  • 13-week cash forecast on rolling weekly basis
  • KPI dashboard tied to your board's or owner advisory's expectations
  • Hiring plan modeling integrated with cash and growth scenarios

Capital Event or Operating Cycle Coverage (Weeks 6 to 12+)

  • Active capital event or major operating cycle preparation if applicable (sale, succession, refinancing, audit fieldwork, or bank covenant renewal)
  • Monthly board or owner advisory package delivered consistently
  • Owner advisory or lender update template and cadence established
  • On-call strategic capacity for hiring, pricing, and capital decisions

Lender, Audit, and Service Provider Relationship Management (Ongoing)

  • Direct relationship with your bank, lender, and audit firm
  • Quarterly check-ins with all major service providers
  • Introduction to additional providers as needed (transaction counsel, recruiters, 409A specialists)

Custom Strategic Capacity (Ongoing)

  • Pricing model development
  • Cohort and unit economics analysis
  • Pre-M&A diligence preparation
  • Sale or succession preparation support

Engagement Duration and Pricing

Engagement pricing is tailored to the scope, stage, and complexity of each company. We offer monthly retainer engagements for ongoing CFO function, fixed-scope project engagements for capital events and transactions, and hybrid models for companies with both ongoing and event-driven needs.

Engagement Timeline from First Call to Board-Ready

Week 1: Diagnostic call and scope. Free 30-minute strategy call to identify what is broken and what success looks like.

Week 2: Engagement starts. Senior CFO embeds. Books and infrastructure assessment in flight.

Weeks 3 to 6: Books stabilization, model build, KPI dashboard build. First clean monthly close delivered.

Weeks 6 to 12: Full embedded function operating. Board, advisory, or lender package delivered consistently. If a capital event is on the calendar, preparation is in motion.

Most Boston companies see materially different board meetings, owner advisory sessions, or lender presentations by week 8 post-engagement start.

Scheduling: Same-day discovery calls often available for Boston-area companies. Engagements typically start within two weeks of signed scope.

Frequently Asked Questions: Boston-Area Fractional CFO Services

Craig Gainsboro, Founder and CEO of Ignition Consultants

Craig Gainsboro

Founder and CEO, Ignition Consultants

Craig founded Ignition Consultants in 2012 after spending 15 years as the U.S. CFO of PricewaterhouseCoopers' Tax and Advisory Lines of Service, where he oversaw finance functions for combined annual revenues of $4.5 billion. Earlier in his career, he held positions at Ernst & Young and Deloitte. He has served as the embedded CFO for hundreds of Boston-area growth-stage and middle-market companies and has been in the room for over $3 billion in capital raised, credit facilities arranged, and transactions supported.

  • 15 years at PwC as U.S. CFO of Tax and Advisory Lines of Service
  • Earlier finance leadership roles at Ernst & Young and Deloitte
  • 250+ client engagements as fractional CFO across stage, sector, and ownership structure
  • Long-standing referral relationships across Boston banks, lenders, audit firms, and transaction counsel
  • BA in Accounting, Isenberg School of Management, University of Massachusetts Amherst

What matters more than credentials is whether the next inflection point in your business is one you walk into prepared. That is what we deliver.

Connect with Craig on LinkedIn.

Serving the Greater Boston Area

Headquartered at 200 Boston Providence Highway in Dedham, we provide embedded fractional CFO, outsourced CFO, and interim CFO services for owner-operated, family-owned, and growth-stage companies across the Greater Boston metro: Downtown Boston, the Financial District, the Seaport District (Innovation District), Back Bay, Beacon Hill, Cambridge (Kendall Square, Harvard Square, Central Square), Somerville, Newton, Waltham, Watertown, Brookline, Dedham, Needham, Westwood, the MetroWest corridor (Framingham, Natick), the North Shore, the South Shore, and the broader 128/495 corridor.

Also serving: New York City | Providence | Hartford | Portsmouth | Greater Northeast

200 Boston Providence Highway, Suite 203, Dedham, MA 02026 · I-95 / Route 128 access to the Greater Boston metro

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Same-day discovery calls often available for Boston-area companies. Engagements typically start within two weeks of signed scope.

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