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GTM agency and go-to-market consulting for B2B teams

OneGTM is a GTM agency and go-to-market consulting practice for early and growth-stage B2B companies. I define who to sell to and how to reach them, then build the systems that make it run: data, scoring, signals, routing, and outbound. Strategy and execution from the same person.

By Garrett Wolfe, founder of OneGTM and former GTM engineer at Unify (employee #9). Updated .

Key takeaways

  • GTM consulting decides who to sell to, how to reach them, and what systems and team that takes.
  • Most consultants stop at the plan. OneGTM builds the systems too.
  • Engagements are advisory, fixed-scope projects, or ongoing retainers.
  • Best fit: B2B teams from seed to Series C moving past founder-led sales.

What GTM consulting covers

Go-to-market consulting answers three questions: who should we sell to, how do we reach them, and what has to be true in our systems and team to do it every week. OneGTM focuses on the parts that decide whether a plan actually runs:

ICP and TAM

Define the ideal customer from real closed-won data, then map and score the full addressable market.

Signals and channels

Pick the buying signals and channels worth acting on: outbound, inbound, LinkedIn, events, partners.

Tech stack audit

Review CRM, data providers, sequencers, and automation. Cut what is unused, fix what is broken.

Pipeline design

How a lead is found, enriched, scored, routed, worked, and reported on, end to end.

GTM team planning

When to hire SDRs, AEs, or a GTM engineer, and what they need on day one.

AI in the motion

Where AI research, agents, and automation actually help. See AI for GTM.

GTM consultant vs. go-to-market agency

Most GTM consultants hand over a strategy and leave the building to you. Most agencies execute without questioning the plan. The gap between those two is where pipeline usually gets lost.

OneGTM does both. Garrett Wolfe advises on the plan and then builds the GTM systems himself: enrichment, scoring, signals, routing, and outbound, handed to your team to own. For a wider view of who does what, see the best GTM engineering agencies.

What a GTM agency does, and when it beats a consultant

A GTM agency takes on go-to-market work end to end: the strategy, and the lists, signals, outbound, and routing that run it. A go-to-market consultant usually stops at the strategy and the plan. The strategy decisions themselves (ICP, positioning, motion, channels, metrics) are covered in the GTM strategy guide.

Go-to-market consultantGTM agencyFractional GTM lead
OutputA strategy and a planThe plan plus the systems that run itA part-time owner who runs GTM inside your team
Good whenThe team can execute but disagrees on directionNobody has time or skills to build the systemsYou need leadership before a full-time hire
Watch forA deck nobody acts onWork that stays in the agency's accountsOne person stretched across strategy and execution

OneGTM is me plus a small team. The person on the scoping call builds the system, and everything is built in your accounts. For the wider field, see the GTM agency landscape and GTM agencies for startups.

How engagements work

  • Advisory. A monthly retainer for founders and revenue leaders who want an experienced operator to pressure-test plans, hires, and tools.
  • Project. A fixed-scope build, such as a TAM and scoring model, a signal-based outbound system, or a CRM cleanup.
  • Retainer. Ongoing build and iteration for teams that want a GTM engineering function without hiring one yet.

When to bring in a GTM consultant

Want a quick read on where you stand first? The free GTM scorecard grades your go-to-market across six areas in about two minutes. Prefer to start on your own? Work through the GTM playbook.

  • Founder-led sales is working but does not scale past the founder.
  • You are about to hire SDRs or a first GTM engineer and want the systems ready first.
  • Outbound reply rates have dropped and nobody knows why.
  • The CRM is messy enough that reps and leadership do not trust the numbers.
  • You want to know what a GTM engineer would actually do before you hire one. See what a GTM engineer does.

GTM consulting FAQ

What is GTM consulting?
GTM (go-to-market) consulting helps a company decide who to sell to, how to reach them, and what systems and team it needs to do that repeatably. Good GTM consulting ends with working systems and a clear plan, not just a slide deck.
What does a go-to-market consultant do?
A go-to-market consultant defines the ICP and total addressable market, picks the channels and signals worth acting on, audits the tech stack and CRM, and designs how leads flow from first touch to closed deal. At OneGTM, the same person also builds those systems.
What is the difference between a GTM consultant and a GTM agency?
A consultant usually advises and plans. An agency usually executes. OneGTM does both: founder-led advisory when you want direction, and hands-on GTM engineering builds when you want it done.
How much does GTM consulting cost?
Advisory is usually a monthly retainer, and system builds are usually fixed-price projects. Agency GTM work in the 2026 State of GTME report ranged from about $2,000 to $33,000+ per month. OneGTM scopes each engagement after a short call.
When should a startup hire a GTM consultant?
Common moments: after product-market fit when founder-led sales stops scaling, before hiring the first SDRs or GTM engineer, when outbound has stalled, or when the CRM and tools have grown messy enough that nobody trusts the data.
Does OneGTM work with startups outside the US?
Yes. OneGTM is based in New York and works with B2B teams in the US, Europe, and elsewhere, mostly remotely.
Can I hire OneGTM as a GTM advisor instead of a full project?
Yes. Some founders want a GTM advisor on call more than a build team: a standing session every week or two to review pipeline, pressure test ICP and messaging, and decide what to build next. That advisory retainer can turn into a hands-on project later if it makes sense.
What does a GTM agency do?
A GTM agency helps a company take a product to market: choosing the ideal customer profile and positioning, picking channels, and building the account lists, signals, outbound, and routing that turn the plan into meetings. OneGTM does the strategy and the build.
What is fractional GTM?
Fractional GTM means hiring a senior go-to-market operator part-time to own strategy and execution before a full-time hire makes sense. It suits seed and Series A companies that need leadership and systems but not a full-time head of growth yet.

Want a GTM plan that someone actually builds?

Related

  • GTM engineering agency: Founder-led outbound, signal, CRM, and AI systems for seed to Series C teams.
  • GTM playbook: A practical go-to-market checklist for B2B startups, from ICP and signals to outbound, routing, and measurement.
  • GTM strategy guide: How to build a B2B go-to-market strategy, with worked examples, a one-page template, and a 90-day test plan.
  • Best GTM agencies for startups: Outbound, founder-led sales, marketing, and RevOps firms for seed to Series B, compared by stage.
  • GTM engineering guide: What GTM engineering is, how it differs from RevOps, the stack, five core workflows, and how to start.
  • Free GTM scorecard: Twelve questions that grade your go-to-market engine across six areas, with fixes for the weakest ones.
  • GTM engineering services: Everything OneGTM builds, from CRM enrichment to signal-based outbound.
  • How a OneGTM engagement works: The end-to-end build from account list to booked meeting, the 12 work modules, and who owns what.
  • RevOps agency and RevOps consultant: CRM architecture, routing, and reporting your team can trust, built hands-on.
  • What is a GTM engineer?: The role, salary ranges, skills, and tools, from the State of GTME report.
  • B2B demand gen agency: Pipeline programs that connect content, signals, and outbound.
  • AI for GTM: How AI GTM works across sales, marketing, and RevOps teams.

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