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Transmission

Global B2B marketing agency founded in London in 2013 by Chris Bagnall; it describes itself as the largest global independent B2B marketing agency, with 250+ employees.

Received strategic investment from Bain Capital Tech Opportunities in 2021 and acquired Earnest in January 2025.

Serves enterprise technology, finance, and professional services globally.

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A directory listing, not an endorsement · Considering a GTM partner? See how we work

At a glance

HeadquartersLondon
Founded2013
Service regionsUnited Kingdom
Websitetransmissionagency.com ↗

01/ about

About Transmission

Transmission, founded in London in 2013 by Chris Bagnall, describes itself as the largest global independent B2B marketing agency.

Combining human expertise and AI to deliver complete go-to-market solutions, they serve enterprise technology, finance, and professional services clients globally.

In 2021, Transmission received strategic investment from Bain Capital Tech Opportunities to fuel global expansion, and in January 2025 acquired Earnest, the award-winning B2B agency with offices in London and New York.

Core service pillars include Strategy and Planning (market intelligence, audience research, brand positioning, GTM strategy), Creative and Content (brand identity, campaign concepts, whitepapers, videos), Demand Generation (ABM, media planning, paid social, SEO, SEM), and Marketing Technology and Operations (marketing automation, CRM, data management, analytics).

Their key differentiator is exclusive focus on complex B2B challenges combining data-led strategy, creative services, and demand generation at global scale.

02/ services

What Transmission does

Key services

  • B2B Strategy
  • Go-to-Market Planning
  • Creative Services
  • Demand Generation
  • Account-Based Marketing
  • Marketing Technology
  • Content Marketing
  • Brand Positioning

Specializations

B2B marketingDemand generationContent strategyABM

Best for

Enterprise sales

Teams targeting high-value accounts

B2B companies

Organizations selling to other businesses

Growth teams

Marketing and sales alignment

03/ directory

Similar GTM agencies

NapierAward-winning UK-based B2B technology PR and marketing agency launched in 1984. Specializes in electronics, IT, and industrial technology, w…Chichester, West SussexTransmission AUGlobal B2B marketing agency that describes itself as the largest global independent B2B agency, with offices including Sydney, Singapore, De…SydneyMerkelijkheidB2B marketing agency with real-time performance dashboards through its proprietary MerkelijkheidOS system.AmsterdamLOSAMLOSAM is a B2B marketing and networking agency dedicated to companies targeting key decision-makers within large corporations. Based in Pari…Paris

Related GTM resources

Best GTM agencies in the UKUK GTM agencies for B2B growth.More United Kingdom GTM agenciesOther GTM agencies based in United Kingdom.GTM agency guideA guide to choosing a GTM agency.GTM strategy builderBuild your GTM plan with AI assistance.Browse all GTM agenciesThe full GTM agency directory.

GTM Quest is a GTM agency based in London.

Before you hire any go-to-market strategy agency, it is worth knowing which questions separate a real strategy partner from a channel shop.

04/ how we work

Considering a GTM partner? This is how we work

GTM Quest is a go-to-market consultancy in London.

We define who you sell to and why they should choose you, then build the system that turns it into pipeline: LinkedIn, founder-led content, buying signals and outbound, running on a data layer you own.

We run it with you, or build it and hand it over.

The data, the tooling and the playbooks stay yours.

Every engagement is scoped and quoted in writing after the discovery call.

Book a 15-minute call →See the Quest System

How much of the work do you want to own?

Handover + support

We hand over, then stay close

Everything in Handover, then a consultant stays on one or two days a week to optimise and troubleshoot.

  • ✓ Everything in Handover
  • ✓ One or two days a week of consultant time
  • ✓ Weekly optimisation calls
  • ✓ Slack and email support

Best for teams building their own capability.

Our services

GTM agencyThe Quest System: ICP, positioning, signals and outbound on a data layer you own.ABM agency UKAccount-based marketing for named target accounts.B2B demand generationCreating demand, then capturing it.B2B lead generationSignal-led cold email and LinkedIn outreach that books meetings.

15 minutes · video or phone

Book 15 minutes with a GTM consultant

Tell us where pipeline stalls today. We come back with the binding constraint as we see it and what we would build first, whether or not you work with us.

  1. 0115 minutes, video or phone
  2. 02We look at your ICP, positioning and channels
  3. 03A written next step after the call
  4. 04Handover, embedded or run-for-you engagements
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