GTM Consultants: Your Go-To-Market Consultancy Guide
A clear guide to the go-to-market consultancies serving B2B SaaS.
We are GTM Quest, a London-based GTM agency.
Below, we list the firms we rate and what each one does best.
GTM Consultants Guide
GTM consultants help B2B software companies turn products into revenue.
They work across positioning, sales process, demand generation and revenue operations.
This guide lists the firms we rate. We are not ranking them.
Each one is strong in a different area, so match the firm to your stage and your need.
Top GTM Consultancies
We start with our own agency, then highlight the firms we admire.
GTM Quest
Clay-powered ABM systems for B2B SaaS scale-ups
London, UK (global delivery)
GTM Quest builds outbound and ABM systems for B2B SaaS companies that have product-market fit but haven't yet built a repeatable pipeline engine.
The work is heavily Clay- and lemlist-anchored - ICP segmentation, signal-driven prospecting, multi-touch sequences, and a feedback loop into CRM that lets sales reps see why every account is in the queue.
Expertise
SalesCaptain
Multi-channel outbound execution for B2B SaaS and services
Lithuania (UK and global client base)
SalesCaptain is a Clay-, lemlist-, and Reply-certified outbound agency with 80+ team members operating across the US, Canada, UK, Europe, and Asia.
Their case studies cite 5–15% new-deals growth in the first 90 days and 5–10 SQLs per week for clients in financial services, B2B SaaS, and construction technology.
Expertise
Winning by Design
Revenue Architecture for enterprise SaaS growth
New York, US (global practice)
Founded by Jacco van der Kooij, Winning by Design is the firm large SaaS companies hire when their go-to-market organisation has scaled past where intuition and founder-led selling can take it.
The Revenue Architecture framework is genuinely category-defining - it treats marketing, sales, and customer success as one continuous customer lifecycle.
Expertise
Kalungi
T2D3 marketing for rapid SaaS growth
Austin, US (US/UK delivery)
Kalungi pairs a fractional CMO with a delivery team and embeds them as your outsourced marketing department.
The T2D3 framework (Triple, Triple, Double, Double, Double - Salesforce's growth pattern, popularised by Kalungi) drives the engagement: get to predictable revenue, then scale it.
Expertise
Passetto
Revenue engine architecture for predictable B2B growth
London, UK (UK/EU focus)
Passetto helps B2B SaaS companies architect and operationalise the revenue engines that power predictable growth.
Their approach combines strategic consulting with hands-on implementation - building the systems, training the teams, and running the programmes that turn prospects into predictable pipeline.
Expertise
Arise GTM
Pre-launch positioning for regulated B2B markets
Manchester, UK (UK/EU focus)
Arise GTM is a UK boutique that specialises in pre-launch positioning, ICP definition, and offer strategy - the work that has to happen before any agency can profitably run campaigns for you.
Their differentiator is speed and depth in regulated sectors: fintech, regtech, and B2B SaaS where compliance constraints shape positioning.
Expertise
Refine Labs
Brand-led demand generation for category creators
Boston, US (US/UK delivery)
Refine Labs is now led by CEO and majority owner Megan Bowen, following Chris Walker's transition out of day-to-day operations in 2024.
The firm's framework - Brand → Demand → Expand - focuses on building market preference before buyers are in-market, capturing high-intent demand efficiently, and driving post-sale expansion.
Expertise
Directive Consulting
Customer generation through full-funnel paid acquisition
Los Angeles, US (US/UK delivery)
Directive runs a 'customer generation' methodology - a full-funnel approach that ties paid media, SEO, content, and RevOps together with outcome metrics that lead to revenue, not impressions.
Strong execution depth across paid acquisition channels, particularly Google Ads and LinkedIn for B2B SaaS.
Expertise
Heinz Marketing
Marketing-sales alignment for predictable B2B revenue
Seattle, US (US focus)
Heinz Marketing builds and optimises the intersection between marketing and sales - the handoff points, attribution models, and shared metrics that make the difference between 'leads' and 'revenue'.
Matt Heinz has spent two decades helping B2B companies fix the operational gaps that prevent marketing from directly contributing to closed-won revenue.
Expertise
Six & Flow
Full-stack demand generation on HubSpot for B2B SaaS
London, UK (UK/EU focus)
Six & Flow builds full-stack demand generation programmes for B2B SaaS companies that have found product-market fit but need systematic demand creation.
Their HubSpot-centric approach spans strategy, content, paid media, automation, and sales enablement - everything needed to turn website visitors into qualified pipeline.
Expertise
What is a go-to-market consultant?
A go-to-market consultant is a strategic advisor for B2B technology companies.
They help you design and run the systems that turn a product into revenue.
The work spans marketing, sales, customer success and revenue operations.
Most come from operating roles. They have built revenue engines before, so they bring pattern recognition rather than theory.
The discipline overlaps with fractional executive leadership and demand generation, but it is distinct. A pure GTM consultant advises and builds rather than running campaigns day to day.
Companies hire one when they have product-market fit but no repeatable revenue, when entering a new market, or after a change in commercial leadership.
Key services GTM consultants provide
Most firms specialise in two or three of these six services rather than all of them. Use the list to match a firm to your need.
Strategy development
Market segmentation, ICP definition, positioning and channel selection. You get a strategy document plus a 90-day roadmap. Best when entering a market or repositioning.
Sales and marketing alignment
Lead scoring, MQL-to-SQL criteria, shared dashboards and RevOps infrastructure. Best when sales and marketing report different versions of pipeline.
Launch planning
Messaging, sales enablement, channel sequencing and first-90-days tracking. You get the full launch playbook. Best for product launches and new markets.
Sales process design and coaching
Discovery frameworks, demo design, proposal templates and AE coaching. Best when win rates are inconsistent or you are scaling past founder-led selling.
Performance and revenue operations
Attribution, pipeline analytics, forecast accuracy and RevOps stack design. Best above £5M ARR where lack of visibility constrains decisions.
Fractional revenue leadership
Interim CRO, VP Sales or VP Marketing, typically 2 to 3 days a week. Best between £1M and £20M ARR when a full-time senior hire is not yet justified.
Looking for fractional leadership? See Fractional.Quest. Building an RFP? Use RFP.Quest.
Why hire a go-to-market consultant?
Fix pipeline faster
A consultant who has seen the problem before diagnoses the binding constraint in weeks, not months. For B2B SaaS, a well-matched engagement often returns 3 to 10x within 12 months.
Sharpen positioning
Most B2B messaging describes the product, not the buyer. A consultant runs the customer interviews and competitive work internal teams rarely have time for.
Enter new markets
A new market breaks the motion that worked before. A consultant with experience there compresses the learning curve from 18 months to about six.
Go-to-market consultant vs Google Tag Manager
The acronym GTM means two very different things.
A go-to-market consultant is a commercial advisor for B2B tech. They work on ICP, positioning, sales process and revenue operations. Engagements run roughly £5K to £40K a month.
A Google Tag Manager consultant is a web analytics specialist. They deploy tracking codes such as GA4 and the Meta Pixel. Engagements run roughly £500 to £3,000 a project.
| You need a go-to-market consultant if you ask... | You need a Google Tag Manager consultant if you ask... |
|---|---|
| How do I scale revenue? | Why isn't my conversion tracking firing? |
| What is my ideal customer profile? | How do I implement GA4 events? |
| Should we go product-led or sales-led? | How do I track this button click? |
| £5K–£40K/month, 3 to 12 months | £500–£3,000/project |
Reference: Google Tag Manager documentation.
How to choose a go-to-market consultant
A seven-step process for picking the right firm.
Define the binding constraint
Find the single thing holding back growth right now. Hire the specialist in that, not a generalist who does everything passably.
Match the firm to your stage
Pre-PMF: founder-led selling. £500K–£3M: sprint boutiques. £3M–£15M: hybrid mid-tier. £15M–£50M: senior fractional CMO. £50M+: revenue architecture firms.
Verify operator credibility
The senior people should have owned a number before. Ask about a time they missed quota. Real operators have specific stories.
Demand case studies in your ICP
Generic studies are useless. Ask for a named client at your stage with a real outcome. Speak to that client if you can.
Confirm execution depth
Some firms deliver a deck. Others build the system with you. Ask what you will have at the end, then match it to your need.
Check who does the work
Many firms sell the partner and deliver with juniors. Get the named senior team in writing before you sign.
Set success criteria and exit terms
Agree three or four metrics with quarterly gates. Define what the engagement is not. Set a clear notice period and IP transfer.
When should you hire one?
Five triggers reliably produce strong ROI. Hiring at other moments usually wastes money.
PMF, but unpredictable pipeline
Revenue happens but you cannot forecast it. Wins feel like luck. This is where a consultant returns the most.
Entering a new market or vertical
Expanding to the US, into a regulated vertical, or up to enterprise. The old motion will not carry over.
Changing sales motion
Moving from product-led to sales-led, or adding self-serve. Most companies stall during this shift.
A gap in commercial leadership
Your CRO, VP Sales or CMO has left, or you are between hires. A fractional leader runs the function meanwhile.
Preparing for a raise or sale
Diligence probes CAC payback, sales velocity and retention. A consultant cleans the metrics and the narrative first.
When not to hire one
- You do not have product-market fit yet. No GTM strategy fixes a product problem.
- You are below £500K ARR. Founder-led selling is still the right motion.
- You are above £30M ARR with a mature function. You need specialist hires instead.
- You need execution capacity, not strategy. Hire a demand gen agency.
Consultant vs agency
Go-to-market consultant
Strategy, methodology and advice. You keep a system you run yourself. Best when you have capacity to execute but need direction.
Go-to-market agency
Runs campaigns and channels for you. Best when you know what to do but lack the capacity to do it.
Hybrid (most of this list)
Does both, with the balance varying by firm. GTM Quest consults on strategy and runs the Clay-powered ABM system. See the broader GTM agency landscape.
GTM consultant pricing in the UK
Benchmarks from 200+ UK go-to-market consultancies serving B2B SaaS in 2026.
Sprint or project work
Specific deliverables over 30 to 90 days, such as an ICP refinement or positioning sprint. Best for a narrow problem you can execute in-house.
Mid-tier monthly retainer
Ongoing strategy plus partial execution, including Clay or HubSpot work and monthly reviews. Best for £1M–£15M ARR.
Senior fractional CMO or VP Sales
Embedded leadership, 2 to 3 days a week, with revenue accountability. Best for £3M–£20M ARR between hires.
Premium revenue architecture
Full revenue redesign with named senior partners. Best for £20M+ ARR in scale phase.
UK pricing typically runs 30 to 50 percent below US equivalents at every tier.
Sources: Tech Nation, Beauhurst, and direct consultancy quotes (Q1 2026).
Frequently asked questions
Mid-tier retainers run £4K to £12K a month.
Senior fractional and premium work runs £12K to £40K a month. Match the level to your stage. See our full directory.
Agencies run campaigns and channels for you.
Many firms here are hybrid. Compare execution-focused firms in our GTM agency guide.
Retainers usually start with a 3 to 6 month pilot.
Fractional arrangements often run 12 to 18 months.
Pre-PMF companies should focus on product first.
The sweet spot is growth-stage B2B SaaS with PMF but no repeatable revenue system.
It can also mean Google Tag Manager, a web analytics tool, so context matters.
When discussing B2B software, GTM almost always means go-to-market.
For ongoing execution above £5M ARR, an in-house team works better.
Many companies use both. A consultant builds the system, then operators run it.
Match on stage and on a named partner who has run the motion you are scaling.
The firms higher in this guide that build systems, not decks, fit this stage best.
Ask for a named operator and a specific enterprise outcome at your ACV.
A fractional CRO is often the right shape for this work.
For a £500k engagement spanning strategy and execution, a full-service GTM agency with a delivery team is the better fit.
Decide by whether you need judgement or capacity.
If you want a single senior operator, see our GTM expert guide.
Hiring instead? Start with GTM recruitment.
GTM advisors, experts and recruitment
A consultant is one option. Depending on your need, an advisor, an expert, or a hire may fit better.
GTM advisors
Senior go-to-market counsel without running execution. Light-touch GTM advisory for founders and CROs.
GTM experts
A single senior operator who has scaled go-to-market systems before. Find a leading B2B SaaS GTM expert.
GTM recruitment
Hiring instead of outsourcing? GTM recruitment to place engineers, sales, and revenue operations talent.
Need help choosing a GTM consultant?
Book a 30-minute call. We will walk you through your options, including ones that are not us.
GTM Consultants Visual Resources
GTM Consultants Directory
Top GTM Consultancies
Additional GTM Resources
Leading GTM Consultancies for Go-To-Market Strategy
GTM Consultants guide by GTM Quest. Updated June 2026.