10.31.26 · 10 min read
How to choose a GTM agency: 12 questions, red flags, contract terms and a 90-day pilot plan for Seed to Series A startups. Use it on your next call.
How to choose a GTM agency comes down to three passes: can the firm do the work, will it tell you the truth, and do the terms protect you. This checklist gives 12 questions with good and bad answers, the contract terms to insist on and a plan for the first 90 days.
Disclosure: QC Growth is a GTM agency, so you should run us through this checklist too. Price ranges come from agencies' own published guides, and the relationship data comes from industry bodies and a matchmaking firm. Sources were checked on 30 October 2026.
The table gives the short version. The sections below explain each row and show where the claims come from.
| Topic | Short answer |
|---|---|
| First step | Write a one-page brief before any calls |
| Agency types | Strategy, embedded team, GTM engineering, outbound, fractional specialist |
| Typical cost | About $5,000 to $25,000 or more a month, from vendor-published ranges |
| Evaluation | 12 questions in three passes: capability, candor, fit |
| Contract | Pilot of 60 to 90 days, about 30 days' notice, client-owned accounts |
| Early metrics | Reply rate, ICP-fit meetings, qualified opportunities |
| Main risks | Poor value, weak delivery, staff changes at the agency |
Most published figures on this topic come from vendors and agencies, so we label them as such.
An agency speeds up a motion. It rarely finds one from nothing. Before you book calls, check that you can describe the buyer, the problem you solve, your price range and a few deals the founder closed.
Write those down in one page. That page becomes your brief, and it shows which agencies understand it on the first call. Our guide to founder-led sales and the first sales hire covers what to have in place first.
"GTM agency" covers firms that do different work. ARISE GTM, which sells GTM services, publishes typical UK ranges: strategy-only projects at £15,000 to £50,000, strategy plus execution at £10,000 to £30,000 a month on 6 to 12 month retainers, fractional specialists at £5,000 to £15,000 a month and diagnostics at £5,000 to £15,000 over two to four weeks (ARISE GTM). MarketerHire, a talent marketplace, lists its own tiers from $5,000 to $15,000 or more a month (MarketerHire).
Treat these as vendor ranges. The type of firm matters more than the number, because each type owns a different part of the result.
| Type | What it delivers | Best for |
|---|---|---|
| Strategy consultancy | Positioning, ICP, pricing and a plan | Teams that will execute in-house |
| Embedded GTM team | Builds the system and runs the motion with you | Seed to Series A teams without a sales org |
| GTM engineering firm | CRM, enrichment, signals and outbound infrastructure | Teams with sellers but weak systems |
| Outbound or appointment setting | Meetings on your calendar | Teams with a proven message and a closer |
| Fractional specialist | One senior person for part of the week | A narrow gap in leadership or skill |
Our roundups of GTM consulting firms and GTM engineering agencies compare named firms in two of these groups.
Ask the questions in order. The first four test capability, the next four test candor, and the last four test fit and terms. Several come from the comparison guides by ARISE GTM and MarketerHire, adapted for early-stage teams.
Score each answer from one to three as you go. A shortlist of two or three firms is enough to compare properly.
| Question | Good answer | Red flag |
|---|---|---|
| 1. Who will do the work, by name, and what is their tenure here? | Named people, their roles and how long they have been at the firm | A senior pitch team and an unnamed delivery team |
| 2. Show us a client at our stage and what changed for them. | A named or referenceable client at Seed to Series A with a before and after | Logos only, or case studies from much larger companies |
| 3. Which motion would you run for us, and why? | A reasoned choice between outbound, inbound, product-led or a mix, tied to your buyer | The same plan they pitch to everyone |
| 4. Who holds the keyboard? | Their team builds and runs the work in your tools | Advice and reports, with your team expected to execute |
| 5. Walk us through a project where your first strategy was wrong. | A specific story, what they noticed and what they changed | No example, or a story where the client was to blame |
| 6. What would make you tell us not to hire you? | A clear description of who they do not fit | Every company is a fit |
| 7. How do you connect your reporting to revenue? | Pipeline and stage conversion, with leading indicators at low volume | Lead counts, opens and impressions |
| 8. What results should we expect at 30, 60 and 90 days? | Leading indicators first, pipeline later, stated in writing | Large guarantees, or no commitment at all |
| 9. What does a pilot look like? | A 60 to 90 day scope with exit criteria | A 12-month commitment before any proof |
| 10. What is the notice period and handover? | About 30 days, with a written handover plan | 60 to 90 days with no handover |
| 11. Who owns the domains, CRM setup, data and playbooks? | You do, in accounts created under your logins | The agency, or the contract is silent |
| 12. How do we hand this to our first hire later? | A plan to document and transfer the system to an in-house owner | No plan, or a pitch to stay forever |
ARISE GTM lists several warning signs worth repeating: reporting lead volume instead of qualified pipeline, promising large results in 30 days, demanding a year-long commitment without a proof of concept, and optimizing one piece of a broken system.
Two more matter for startups. Watch for agencies that create sending domains, CRM workspaces or enrichment accounts in their own name, and for teams that cannot explain how the work transfers to your first hire.
Notice periods and minimum terms vary. SaaS Hero, a B2B agency, calls 30 days the fair default and 60 to 90 days aggressive (SaaS Hero). ARISE GTM suggests 30 to 60 days with a handover, a 60 to 90 day pilot, and confirming that you keep all IP, documentation and system access.
Put ownership in writing. Create ad accounts, CRM workspaces, sending domains, mailboxes and sequencer seats under your own logins and give the agency access. The agency should never be the account owner of anything you need to keep running after it leaves.
| Term | What to ask for |
|---|---|
| Pilot | 60 to 90 days with written success criteria |
| Notice | About 30 days, with a handover plan |
| Ownership | All accounts, data, documents and playbooks in your name |
| Reporting | Pipeline and stage conversion, plus leading indicators while volume is low |
| Exit | A written list of what transfers, and when |
Most published ranges assume a later-stage budget. At Seed, size the retainer against runway: $10,000 a month for a six-month pilot is $60,000, so ask what that money buys compared with a first hire.
Volume is low early, so judge the first months on leading indicators: reply rate, meetings with ICP-fit accounts, and the share of meetings that become qualified opportunities. Agree those metrics in the pilot document so both sides read the results the same way.
Industry data on large brands shows how long good relationships can last. ANA and the 4As reported in April 2025 that average agency-of-record tenure was about seven years, up from 3.2 years in 2016. That covers big-brand marketing relationships, so read it as context for startup retainers.
On why they end, Setup's marketing relationship survey, run by a marketing matchmaking firm, found dissatisfaction with value rose from 39% in 2022 to 53% in 2023, with value, delivery and agency staff changes as the top reasons clients left. The 12 questions above target those three causes.
Agree the ICP, the message and the accounts in writing. Check that every account and tool sits in your name.
Expect setup work and the first live campaigns; pipeline comes later.
Review reply rates and meeting quality weekly. Ask what the agency changed and why.
Kill what is not working and say so in writing.
Compare results against the pilot criteria. Decide to extend, change scope or exit.
If you extend, set the next 90-day targets and the plan to hand the system to your first hire.
Use the table as a quick reference.
It also works as a checklist for your next planning session.
| Category | Key Considerations |
|---|---|
| Readiness | A one-page brief with buyer, problem, price and founder-closed deals |
| Choosing a type | Match the agency type to the part of the result you are missing |
| Questions | Who does the work, proof at your stage, motion, reporting, pilot, ownership |
| Red flags | Lead-volume reporting, 30-day promises, 12-month lock-ins, agency-owned accounts |
| Contract | Pilot, notice, handover and ownership in writing |
| First 90 days | Setup, weekly review, then extend, change scope or exit |
QC Growth is the embedded GTM team for Seed to Series A technical founders. A fractional pod of a top-1% GTM operator, a GTM lead, a GTM engineer and BDR support builds and runs your Allbound motion, with inbound, outbound and partner channels in one signal-driven system. The infrastructure, data and playbooks stay with you.
The operators have carried the bag in these markets: Luke Bivens at Gatsby and Netlify, Aron Schuhmann at Gatsby and OctoAI, Shane O’Connor through a 10x ARR run at Scalar, and Kori Bivens, a former VP at RVO Health who leads the healthcare division. At Burn Media Co., revenue rose from $142,000 in April to $181,000 in August, up 27.5% and the best two months in the company’s history (read the case study).
It is built for Seed to Series A companies past product-market fit in developer tools, AI, healthcare and deep tech, that want an agency they can hold to pipeline and leave without losing their data.
Bring these 12 questions to a first call, and expect named people, a pilot scope and client-owned accounts in the answer. Packages run $7,500 to $25,000 a month on 6 to 12 month terms with no equity, against $57,000 to $81,000 a month plus 1.25% to 2.75% equity for a senior in-house team, broken down in QC’s in-house versus fractional cost math. See what the Full Service GTM package includes.
To choose a GTM agency, write a one-page brief first, then shortlist two or three firms of the right type and run them through questions on capability, candor and fit. Ask who will do the work, for a client at your stage, how reporting connects to revenue and who owns the accounts and data. Start with a 60 to 90 day pilot with written success criteria.
A GTM agency costs from about $5,000 a month for a narrow specialist to $25,000 or more for an embedded team, based on vendor-published ranges. ARISE GTM lists strategy plus execution at £10,000 to £30,000 a month on 6 to 12 month retainers, and MarketerHire lists tiers from $5,000 to $15,000 or more. QC Growth publishes $7,500 to $25,000 a month.
A GTM agency contract should include a pilot with success criteria, a notice period of about 30 days, a handover plan and clear ownership of accounts, data and playbooks. SaaS Hero calls 30 days the fair default and 60 to 90 days aggressive. Create every account under your own logins so nothing stops when the agency leaves.
A GTM agency should show leading indicators within the first 30 to 60 days and qualified pipeline later, with timing set by your sales cycle. ARISE GTM recommends a 60 to 90 day pilot before a longer commitment. Agree the metrics for each checkpoint in writing at the start.
The questions to ask a GTM agency cover who does the work, proof at your stage, which motion they would run and who holds the keyboard. Add candor questions such as a project where their first strategy was wrong, and fit questions on pilots, notice periods and data ownership. The 12-question table above gives a good and a bad answer for each.
A GTM agency works on the whole path to revenue, including targeting, outbound, sales process and CRM, while a marketing agency focuses on demand and brand. Some GTM agencies run outreach and sit in on deals, and some only advise. Ask who holds the keyboard to find out which you are buying.
A startup should hire a GTM agency when it needs a system and a motion built quickly, and a first sales rep when a repeatable playbook already exists. An agency brings a team and tools from week one, while a rep needs a playbook to follow. Many teams use an agency first and hand the system to the first hire.
Companies fire their GTM agencies mainly over value, delivery and changes in agency staff, according to Setup's marketing relationship survey. The same survey found dissatisfaction with value rose from 39% in 2022 to 53% in 2023. Clear success criteria, named staff and a pilot reduce all three risks.
If you're at the inflection point, technology proven, market waiting, and the canyon between them, we should talk.