Brennen Lesser

Fractional CMO · Boston, Massachusetts

fractional cmo consultant in Boston

Fractional CMO leadership for Boston, Massachusetts teams — go-to-market strategy, growth systems, and accountable execution on a flexible retainer.

Talk to Brennen
20+ yrs
Operating experience
30–50%
Of a full-time CMO cost
2 weeks
To ramp in Boston
Boston
Market served

The case for a fractional CMO in Boston

When a Boston, Massachusetts company outgrows do-it-yourself marketing, the cracks show fast: unclear positioning, spend no one can defend, and a team with no senior direction. A full-time CMO is the textbook fix, but at $250k-plus and a four-to-six-month hire, it is the kind of bet that can set a growing company back if it misses.

A fractional CMO turns "we need a marketing leader someday" into "we have one now." You embed a senior operator part-time to own the strategy, build the systems, and lead the people — with accountability for revenue and none of the full-time risk. Most Boston companies see it as the smartest first executive marketing hire they can make.

What a fractional CMO actually does

The job is to own marketing the way a full-time CMO would. That is strategy and positioning for your Boston market, a demand engine that produces qualified pipeline, attribution that ties spend to revenue, and the hiring and process work that leaves you with a functioning department, not a dependency.

What you get

01

Strategy & positioning

A clear go-to-market for the Boston market and beyond — messaging your whole team can repeat.

02

Demand generation

Channels and campaigns that produce pipeline, measured to revenue instead of clicks.

03

Team & operations

The right hires, tools, and SOPs — a marketing department that runs itself.

04

Analytics & attribution

Honest reporting that ties every dollar of spend back to pipeline and closed revenue.

05

Budget ownership

A marketing budget allocated by someone accountable for the return on it.

06

Executive alignment

Marketing that sales trusts and the board understands — one shared number.

The moment Boston businesses reach for a fractional CMO

The signals are rarely subtle. Revenue is real but growth has flattened. Spend is up but attribution is murky. A capable team is busy but rudderless. A fundraise is looming and the growth engine is not investor-ready. Each of these, on its own, is enough reason for a Boston business to bring in fractional marketing leadership.

The first 90 days in Boston

01

Discovery & audit

Weeks 1–2: understand your funnel, goals, data, and the gaps holding Boston growth back — talk to sales, customers, and the numbers.

02

Strategy & plan

Weeks 2–4: lock positioning, choose the channels that fit your motion, and build a 90-day roadmap tied to revenue targets.

03

Build & execute

Weeks 4–8: install the systems, make or manage the hires, launch the channels, and start producing measurable pipeline.

04

Measure & scale

Weeks 8–12 and on: attribution to revenue, cut what is not working, and double down on what is — then keep compounding.

Fractional CMO vs. full-time CMO vs. agency

A full-time CMO is the most leadership and the most cost — a quarter-million-dollar commitment and a heavy bet early on. An agency is the most execution and the least ownership; it runs tactics but never answers for your number. A fractional CMO splits the difference: executive strategy and accountability, part-time, flexible, and far cheaper for a growing Boston company.

How pricing works

A fractional CMO engagement is a flat monthly retainer, sized to scope and free of equity or long contracts. Companies needing mostly strategy engage fewer days; those needing execution engage more. In practice fractional CMO rates run about 30–50% of full-time CMO comp, giving Boston businesses senior leadership at a fraction of the full-time price.

Why work with Brennen Lesser

What Boston businesses get with Brennen is an operator, not an advisor. He has built demand engines and hired teams from the inside, and he brings that same ownership to your marketing — in the pipeline reviews, in the hiring calls, and answerable for the number the whole way through.

He did not hand us a deck and leave. He built the system, hired the people, and stayed on the hook for results.

Client, B2B SaaSCEO

Frequently asked questions

What is a fractional CMO?

A fractional CMO is an experienced chief marketing officer who leads your marketing on a part-time, ongoing basis instead of as a full-time employee. You get executive-level strategy, team leadership, and accountability for growth — at a fraction of the cost of a full-time hire, and without the long recruiting cycle or equity package.

Do you offer fractional CMO services for Boston companies?

Yes. Brennen Lesser works with Boston, Massachusetts companies as a fractional CMO — both remotely and on-site as the engagement requires. That includes founder-led startups, funded scale-ups, SaaS businesses, professional-services firms, and established B2B companies across the Boston metro.

How much does a fractional CMO cost in Boston?

Most fractional CMO engagements run at roughly 30–50% of a full-time CMO salary, billed as a flat monthly retainer with no equity and no long-term contract. The exact number depends on scope and how many days a month you need. For most Boston companies that is a meaningful saving versus a full-time executive who would command $250,000 or more in total compensation.

How is a fractional CMO different from a Boston marketing agency?

An agency executes tactics — ads, content, email — usually against a brief you provide. A fractional CMO sits a level above that: they set the strategy, decide which channels to invest in, hire and manage the people (or agencies) who execute, and own the results. Think of it as renting a marketing leader, not renting a marketing vendor.

Fractional CMO vs. full-time CMO — which does my Boston company need?

If you have the budget, the workload, and the revenue to support a $250k+ executive full-time, hire one. If you need senior marketing leadership now but can’t yet justify that cost — or you want to de-risk the decision before committing — a fractional CMO gives you the same caliber of leadership scaled to your stage, and can help you hire your eventual full-time CMO when the time comes.

How quickly can we start?

Most Boston engagements ramp in about two weeks. You skip the four-to-six-month executive search entirely — after a short discovery period, Brennen is embedded in your business, auditing the funnel and shipping a strategy while a full-time search would still be scheduling first-round interviews.

What size Boston company is this right for?

Typically seed-to-Series-B startups, SaaS companies, and growing B2B firms in Boston, Massachusetts doing roughly $1M–$50M in revenue — companies large enough to need real marketing leadership but not yet large enough to justify a full-time CMO on payroll.

What results should we expect?

Clear positioning your whole team can articulate, a demand-generation engine measured to pipeline and revenue, honest attribution so you stop wasting spend, and a marketing team and set of systems that keep producing after the engagement scales down. The goal is a self-sustaining function, not dependence on a consultant.

Do you work on-site in Boston or remotely?

Both. Brennen works with Boston, Massachusetts teams remotely day-to-day and comes on-site for kickoffs, planning sessions, and key moments where being in the room matters. Modern marketing leadership doesn’t require a desk in your office five days a week.

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