Best B2B Content Marketing Agencies and Services in the UK for 2026: Built for Google and AI Search

TL;DR

• Buyers now research with AI: 89% of B2B buyers used generative AI in at least one part of their purchase in Forrester's 2024 Buyers' Journey Survey. A B2B content marketing agency now has to write for Google and for answer engines.

• This guide ranks 7 agencies serving UK B2B teams, scored on search capability, AI search readiness, sector depth and pricing transparency.

• Brafton UK ranks #1 for its published GEO service covering Gemini, AI Overviews, ChatGPT, Perplexity and Copilot.

• Hey Sid ranks #3 as a managed AI Search Optimization service for European B2B teams with long sales cycles.

• Use the decision framework at the bottom to match an agency to your situation.

Please note that pricing may change, so always check the latest details on the product's website.

Quick Comparison: Best B2B Content Marketing Agencies in the UK 2026

How These Agencies Were Evaluated

Every agency was scored against the same five criteria. No agency paid for inclusion. Services and pricing were checked on each agency's live website in September 2026.

• B2B specialism. Does the agency work mainly with B2B companies, and in which sectors?

• Google search capability. Is SEO a stated service, not an assumed one?

• AI search readiness. Does the agency publicly describe work on generative engine optimisation (GEO) or visibility in tools like ChatGPT and Perplexity? Where it is not described, the table says "Not stated".

• Pipeline orientation. Does the agency report on pipeline and revenue, or on traffic and output?

• Pricing transparency. Is pricing published? Of the 7 agencies here, 1 publishes a retainer range.

The weighting favours search and AI search, because that is the angle of this guide. An agency ranked lower here can still be the right choice for brand or creative work.

What Makes a Good B2B Content Marketing Agency in 2026

A B2B content marketing agency in 2026 has two audiences for every page: the buyer and the machine that summarises it for the buyer. With 89% of B2B buyers using generative AI during purchasing (Forrester, 2024), content that ranks but never gets cited leaves half the job undone.

The UK market splits into four types of agency:

• Content production agencies write, design and publish at volume. They suit teams whose bottleneck is output. (Brafton UK, Radix Communications)

• Integrated brand and creative agencies combine positioning, campaigns and content. They build category presence over 6 to 12 months. (TEAM LEWIS, Fox Agency, Velocity Partners)

• Growth agencies run SEO, paid media and content against pipeline targets, usually for SaaS. (Gripped)

• Managed AI search services own visibility across Google and AI engines end to end: assessment, content, monthly refinement and reporting. This is the newest and smallest category. (Hey Sid)

The distinction matters because the outcomes differ. Production agencies deliver content. Brand agencies deliver recognition. Managed AI search services deliver presence in the answers buyers read before they visit your website.

For a deeper look at how answer engines choose sources, see the guide to AI search optimization for B2B.

#1 Brafton UK: Best for Content at Volume Built for Google and AI Search

• Specialty: B2B content creation (writing, video, design), SEO, content strategy and a dedicated Generative Engine Optimisation service

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: B2B teams that need a steady volume of search-optimised content across formats

Brafton is a full-service content agency with a registered UK company and a London office. Its B2B content marketing service covers blog posts, white papers, eBooks, video, infographics, web design, SEO, email and paid search.

Brafton earns the top spot because its AI search work is published in detail. Its Generative Engine Optimisation service names the engines it targets: Gemini, Google AI Overviews and AI Mode, ChatGPT, Meta AI, Perplexity and Copilot. The service includes AI-focused keyword research, sentiment analysis of how AI outputs describe a brand, schema and entity work, and competitor benchmarking.

Strengths: Broadest format range on this list. GEO scope is documented, not implied. Brafton ranks in the top 3 UK Google results for "b2b content marketing agency" (Ahrefs, September 2026), which shows its own search practice works.

Limitations: No published pricing or named B2B case studies on the UK service page. Sector specialism is broad rather than deep. Person-level distribution to named target accounts is not stated.

Best for: Mid-market and enterprise B2B teams whose main constraint is producing enough quality content to compete in Google and AI answers.

#2 Gripped: Best Growth Agency for B2B SaaS

• Specialty: SEO and GEO, paid media (Google Ads, LinkedIn Ads), ABM, web design and demand generation for B2B SaaS and AI companies

• Pricing: Retainers typically £5,000 to £15,000 per month (approx. $6,700 to $20,000), with most clients at £8,000 to £12,000 (approx. $10,700 to $16,100). Media spend is separate.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: SaaS companies between £2M and £50M ARR that measure marketing on pipeline

Gripped is a London agency founded in 2017 with around 25 staff and 160+ clients, including Ideagen, Epicor and Crownpeak. It works only with B2B SaaS and AI companies from Series A to growth stage.

Its SEO and GEO service explicitly covers structuring content and websites to appear in AI-generated responses. Content sits inside a wider growth programme with paid media and ABM, and the agency reports on CAC, LTV and pipeline value rather than traffic alone.

Strengths: The only agency on this list with published retainer ranges. Deep SaaS focus reduces briefing time. Content, search and paid media run from one team.

Limitations: SaaS and AI only, so industrial, engineering and professional services firms fall outside its focus. Minimum retainer of roughly £5,000 per month before media spend.

Best for: Venture-backed SaaS teams in the UK that want content, SEO, GEO and paid media tied to one pipeline number.

#3 Hey Sid: Best Managed AI Search Service for European B2B Teams

• Specialty: AI Search Optimization, a fully managed service building visibility across Google, ChatGPT, Perplexity, Gemini and Claude

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: Mid-sized European B2B companies (20 to 100 employees) with long, consultative sales cycles and marketing teams that are already at capacity

Hey Sid is not a traditional content agency. It is a done-for-you service that owns one outcome: being the company that Google and AI engines surface when your buyers research the category.

That distinction matters. AI-visibility tools such as Profound, Goodie AI and Otterly.AI give you a dashboard of where you appear. They do not write the content, build the authority or run the optimisation. Hey Sid handles that work end to end.

How AI Search Optimization runs, in four phases:

• Visibility assessment. An analysis of where your brand appears today across Google and AI platforms, with gaps mapped into a roadmap.

• Content and authority development. Expert content written for both Google rankings and AI citation.

• Continuous AI refinement. Monthly tracking of rankings and how often AI engines recommend you.

• Insights and pipeline impact. Monthly reporting on share of voice in AI answers, with dedicated support.

What sets it apart:

• Google and AI engines in one programme. Five engines are named in scope: Google, ChatGPT, Gemini, Perplexity and Claude.

• Minimal internal effort. The service is designed to run with close to zero manual work from your team, which suits a marketing team of 1 manager and 2 to 3 marketers already covering events and sales enablement.

• Honest measurement. Success is reported as appearance rate and share of voice, not promised rankings or attributed pipeline. Hey Sid does not guarantee AI visibility, and neither can any agency.

Strengths: One of the few services treating AI search as a managed programme rather than a tool subscription. Built for long B2B sales cycles, where buyers research for months before contacting sales. European-born and GDPR-compliant by architecture.

Limitations: Hey Sid is based in Gothenburg and Stockholm, with no UK office. It is not a full-service content agency: no video production, brochures or large-volume blog retainers. There is no self-serve dashboard, so teams that only want tracking are better served by a visibility tool. The programme is designed to compound over 60 to 90 days, not weeks.

Best for: UK and Nordic B2B companies in industrial tech, energy, infrastructure or niche SaaS that want to be cited by AI engines without adding headcount.

Explore AI Search Optimization: heysid.com/ai-search-optimization

#4 TEAM LEWIS: Best for Global Content Programmes

• Specialty: Content strategy and positioning, content creation, SEO, social media, lead generation and multi-country campaign execution

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: Enterprise technology brands running coordinated content across several markets

TEAM LEWIS is a global agency with 25 offices, including regional headquarters in London, San Francisco, Munich and Singapore. Its UK B2B content marketing service covers brand narrative, blogs, podcasts, SEO, social and analytics, with delivery across 14+ countries. Named clients include Infosys, Schneider Electric and Veritas.

Strengths: Scale and reach that smaller agencies cannot match. Sector depth in technology, cybersecurity, fintech and energy. Ranks in the top 5 UK results for "b2b content marketing agency" (Ahrefs, September 2026).

Limitations: The UK site lists an agentic search offering, but its scope and deliverables are not published. Pricing is not disclosed. The global model suits multi-market enterprise programmes more than a 50-person company in one market.

Best for: Enterprise B2B tech brands that need one agency to run content in the UK, Europe and beyond.

#5 Fox Agency: Best for Brand-Led Demand in B2B Tech

• Specialty: Brand strategy, creative, content marketing, PR, media planning, video and events for B2B technology

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: B2B tech companies that want brand and content built together

Fox Agency runs 4 offices: London, Leeds, New York and Denver. It calls its model "brand-led demand" and works across SaaS, fintech, electronics, IoT, cloud and Industry 4.0. Case studies include ABB, Sony, OVHcloud and TE Connectivity. It is a certified B Corp and a Google Premier Partner.

Strengths: Strong creative output for complex technical products. Industrial and electronics experience is rare among UK content agencies. Integrated delivery across brand, content and media.

Limitations: SEO and AI search optimisation are not stated as core services on its website. Content is one discipline inside a brand agency, not the whole offer.

Best for: Industrial and B2B tech companies whose content problem is really a positioning problem.

#6 Radix Communications: Best Specialist B2B Tech Writers

• Specialty: B2B technology copywriting, content strategy and messaging

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: In-house tech marketing teams that need expert writers, not a full agency

Radix Communications has written B2B technology content since 2007, from its base in Truro, Cornwall. It produces blogs, case studies, white papers, research reports, ABM campaign copy and sales enablement material for IT and business decision-makers. Named clients include Mitie, Haskoning and Nova Backup.

Strengths: Deep specialism in B2B tech writing. Peer-reviewed content process and dedicated account management. Works as an extension of in-house teams and other agencies.

Limitations: SEO, GEO and AI search are not mentioned on its services page. Distribution and paid promotion are not stated.

Best for: Technology marketers with their own SEO function who need consistently strong copy on complex topics.

#7 Velocity Partners: Best for Complex Tech Storytelling

• Specialty: Strategy, creative and performance (PPC, ABM, marketing operations) for B2B technology

• Pricing: Custom, not publicly disclosed.

• Pricing may change. Always check the latest details on the vendor's website.

• Best for: Enterprise and mid-market tech firms selling products that are hard to explain

Velocity Partners is a London agency with a New York office. It built its reputation on B2B content for tech companies and lists clients including Salesforce, HubSpot, Workday and Demandbase. Its homepage announces that Velocity is becoming Pretzl, a new company focused on AI, data and real buying journeys.

Strengths: Senior creative thinking for complex products. A client list of well-known tech brands. Performance capability alongside creative.

Limitations: The rebrand to Pretzl means service scope may change as the transition completes. SEO and GEO are not stated as named services on the homepage.

Best for: Tech companies that need a sharper story before they need more content.

Feature Comparison: UK B2B Content Marketing Agencies 2026

Pricing may change. Always check the latest details on the vendor's website.

How to Choose: Decision Framework

The Case for Content Built for Both Google and AI Search

Ranking in Google used to be the finish line. It is now the entry ticket. Answer engines such as Google AI Overviews, Perplexity and Copilot draw heavily on pages that are already indexed and ranking, so SEO still carries weight. But a page that ranks and never gets cited misses the buyer who asks ChatGPT for a shortlist.

The gap shows up in the category itself. Of the 7 agencies on this list, 3 describe a GEO or AI search service in detail. A fourth lists one without publishing its scope. The other 3 may do this work, but a buyer cannot verify it from their websites.

For a B2B company with a 12 to 36 month sales cycle, that gap matters. Buyers research alone for months before they speak to sales, and 89% of B2B buyers now use generative AI somewhere in that journey (Forrester, 2024). The companies named in those AI answers enter the shortlist. The rest wait for a sales call that may not come.

Content alone is not the answer either. The pages that earn citations are specific, sourced and structured so a model can lift a clear answer from them. For the practical side, see the LLM optimization framework for B2B marketers and the pillar guide on generative engine optimization for B2B SaaS.

Choose Brafton UK for volume, Gripped for SaaS growth, TEAM LEWIS for global scale, and Fox Agency, Radix or Velocity for brand and writing quality. Choose Hey Sid when the goal is to be the company AI engines recommend, without adding work to an already full marketing team.

The right B2B content marketing agency is the one whose strength matches your constraint: output, growth, scale, story or AI visibility. For how content feeds pipeline once it is live, see B2B content marketing for demand generation.

Book a demo: heysid.com/demo

FAQ

How much does a B2B content marketing agency cost in the UK?

Most UK agencies on this list do not publish pricing. Gripped is the exception, with retainers of £5,000 to £15,000 per month (approx. $6,700 to $20,000) and most clients between £8,000 and £12,000. Expect media spend on top of any retainer that includes paid distribution.

Pricing may change. Always check the latest details on the vendor's website.

Should I hire a B2B content agency or build content in-house?

Build in-house when you have subject experts with time to write and someone who owns SEO. Hire an agency when your team of 1 to 4 marketers is already covering events, sales enablement and social, and content keeps slipping. A common middle path pairs an in-house editor with an agency for production or AI search.

What is the difference between a content marketing agency and a GEO agency?

A content marketing agency plans and produces content, usually measured on output, traffic and leads. A GEO service optimises content and brand authority so AI engines such as ChatGPT, Perplexity and Gemini cite you in their answers. In 2026 the two overlap, and 3 of the 7 agencies in this guide describe both capabilities in detail.

Do I need a UK-based B2B content marketing agency?

Not necessarily. A UK agency helps with in-person workshops, UK spelling and local media knowledge. For search and AI search work, the deciding factors are sector understanding and a clear method, which European agencies serving UK clients can offer as well.

How long does B2B content marketing take to show results?

Google rankings for new content take months, not weeks, to settle. AI search visibility moves faster on engines that retrieve live, such as Perplexity and Google AI Overviews, where changes can show within weeks once pages are indexed. Pipeline impact in long B2B sales cycles takes longer, so agree on leading indicators such as rankings, AI appearance rate and branded search before you start.

Sources

• Forrester, "The Future Of B2B Buying Will Come Slowly … And Then All At Once"

• Brafton UK, "B2B Content Marketing Agency"

• Brafton, "Generative Engine Optimisation Services"

• Gripped, "B2B SaaS and AI Digital Marketing Agency"

• TEAM LEWIS UK, "B2B Content Marketing Agency"

• Fox Agency, homepage

• Radix Communications, homepage

• Velocity Partners, homepage

• Ahrefs, UK SERP and keyword data for "b2b content marketing agency" (September 2026)

• Hey Sid, "AI Search Optimization"

• Hey Sid, "How It Works"

• Hey Sid, "Case Studies"

Related: AI Search Optimization for B2B: Answer Engines 2026 | B2B Content Marketing for Demand Generation in 2026 | Best Thought Leadership Agencies for B2B in 2026