Skip to content
B2B Buyer Lab
Browse the lab

Locations / London

Agencies in London

67 tracked providers have verified HQ or office presence here, across 19 categories. This is a navigational view of the evidence database — alphabetical within category, unranked — and presence means a stated office, not merely “serves London.”

derived from provider evidence records ·

Social media agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
1000headsHQsocial transformation / word-of-mouth agency (pioneered WOM marketing 2000); Phoenix Equity Partners investmentnot publicmedium-high
FeverBeeHQpure-play community strategy consultancy (brand/customer community, not social channels)not publichigh
The Social ElementHQenterprise social media and community management agency — one of the oldest social agencies (pre-MySpace, 2002)not publichigh
VaynerMediaOfficeglobal social-first creative and media agency (VaynerX group); serves enterprise B2C and B2Bnot publichigh
We Are SocialHQsocially-led creative agency network (part of Plus Company)not publichigh

CMS & martech agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
Apply DigitalOfficecomposable-DX consultancy / Contentful specialist (Contentful Gold partner)not publichigh
Massive RocketHQBraze + Snowflake data/CRM consultancy (Braze Level 4 'Orbit' partner)not publicmedium-high

Localization & translation agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
Argos MultilingualOfficemid-size LSP with AI platform (Argos MosAIQ); strong life-sciences/medical verticalnot publichigh

AI-SEO / technical search agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
AyimaHQtechnical SEOnot publichigh
BuiltvisibleHQtechnical SEOnot publichigh
DistinctlyHQindependent search agency doing original AI-search research — digital PR and SEO engineered for AI/LLM visibilitynot publicmedium-high
MerjHQtechnical SEOnot publichigh
Re:signalHQAI-SEO hybrid (ecommerce specialization)not publicmedium
SALT.agencyOfficetechnical SEOnot publichigh
SearchPilotHQtechnical SEO (enterprise SEO/GEO A/B testing platform + services)not publichigh

Enterprise systems partners

full category roster →
ProviderPresenceTypePublic pricingEvidence
Big BangOfficeenterprise-systems consulting — boutique multi-platform advisory (explicitly 'NOT a software reseller')not publicmedium
CrossfuzeOfficeenterprise-systems consulting — mid-size ServiceNow specialist (RLJ Equity Partners-owned)not publichigh
NewRocketOfficeenterprise-systems consulting — pure-play ServiceNow partner (PE-backed roll-up)not publichigh

Influencer & creator agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
Billion Dollar BoyHQindependent global creator/influencer agency (category-leading independent per trade press)not publichigh
OnalyticaHQB2B influencer marketing platform + professional services hybrid (software plus managed programs); backed by Bebo founders Michael and Paul Birchnot publicmedium-high

Content marketing agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
BraftonOfficefull-service content marketing agency (writing, video, design, SEO, email, social, PPC)not publichigh
Column ContentHQthought-leadership content agency (B2B; messaging/positioning + editorial programs)not publicmedium
Velocity PartnersHQB2B content/brand marketing agency (strategy, creative, performance) — Next 15-owned, merging into Pretzlnot publichigh

Paid media / PPC agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
BrainlabsHQindependent performance/media agency ('world's largest independent media agency' ambition); ranked #2 independent media agency globally per COMvergence datanot publichigh
CadastraOfficetech-driven marketing & ecommerce group; Brazil search-marketing pioneernot publichigh
Just GlobalOfficeglobal B2B media agency (media planning/buying for enterprise tech)not publicmedium-high
PrecisOfficedata-driven digital marketing agency (formerly Precis Digital); The Precis Group also owns Phiture (mobile growth) and Alvie (measurement platform)not publichigh
s360OfficeEuropean marketing and technology agency ('marketing and AI consultancy') — one of the Nordics' largest independentsnot publichigh
TransmissionHQglobal independent B2B marketing agency (ABM + paid media + brand; self-claims '#1 largest global independent B2B marketing agency')not publicmedium-high

HubSpot & Salesforce partners

full category roster →
ProviderPresenceTypePublic pricingEvidence
CloudMasonryOfficeSalesforce consulting partner — mid-size boutique (CPQ/Revenue Cloud specialty)not publichigh
HubleHQHubSpot Elite partner — international HubSpot consultancynot publichigh
Six & FlowHQHubSpot Elite partner — AI-first RevOps consultancynot publichigh

Digital PR agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
connective3Officedata-led campaigns inside a performance-marketing stack (SEO, content strategy, digital PR, PPC, display, social, CRO)not publicmedium
GreentargetOfficeB2B professional-services PR (legal, financial, healthcare, consulting) + original research programs as authority assetsnot publichigh
Hard NumbersHQAI-visibility PR (explicit — Generative Engine Optimisation named service line + original AI-answer-integrity research) + media relations for business developmentnot publicmedium
JBHOfficedata-led campaigns + reactive 'Always On' press office; AI-visibility PR (partial — 'brand mentions that boost AI search', GEO services)not publichigh
Journey FurtherOfficedata-led campaigns ('Clarity at Speed' performance agency; digital PR service line in both UK and US)not publichigh
KaizenHQdata-led campaigns; AI-visibility PR (partial — GEO/AI Search service; 'visible across Google, TikTok and ChatGPT')not publicmedium
Position DigitalHQAI-visibility PR (explicit — 'ties outreach activities directly to AI visibility uplift, designing every campaign to earn coverage in publications that AI models learn from') + data-led digital PR for B2B SaaSMinimum $2,000/month (stated in contact-form eligibility)medium
Reboot OnlineHQdata-led campaigns + reactive newsjacking; AI-visibility PR (partial — strengthens 'AI citation signals' for AI Overviews/ChatGPT)Retainers from £3,500/monthhigh
Rise at SevenOfficedata-led creative campaigns; AI-visibility PR (partial — 'AI Visibility & GEO' service; content for 'SEO, Social, PR, AI and LLM search')not publichigh

Analytics, CRO & RevOps

full category roster →
ProviderPresenceTypePublic pricingEvidence
Conversion (conversion.com)HQCRO — UK HQ, US-serving (verified NA operations via Widerfunnel merger + NA contact line)not publichigh
SpeeroHQCRO / experimentationnot publichigh

SEO agencies (B2B)

full category roster →
ProviderPresenceTypePublic pricingEvidence
DelanteOfficeinternational SEO/SEM agency exporting Polish search talent to Western markets; AI+SEO ('AISO') service linenot publicmedium-high
EmbarqueHQproductized SEO agency for SaaS/startups (content + links + LLM SEO)public tiers: Lean $1,500/mohigh
EskimozOfficeEuropean 'Global Search' acquisition agency — France's market-leading SEO firm, GEO pioneer, expanding across Europe via acquisition roll-upnot publichigh
ImpressionOfficeindependent full-funnel search/digital agency with named GEO service line; B Corpnot publichigh
MADX DigitalHQSaaS SEO specialist (SEO + GEO, revenue-first)public tiers: individual pillars (SEO optimisation / content / links) $2,500/mo each on annual billing ($3,500/mo monthly)high
NUOPTIMAHQAI-native SEO/GEO growth agency (SEO + GEO + paid + outbound; MSP and B2B verticals)not publicmedium-high
StudioHawkOfficeSEO-only specialist agency (AI search line added)not publichigh

GEO / AEO agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
Directive (Directive Consulting)OfficeB2B performance/SEO agency with named GEO service line (plus AEO)not publichigh
Exposure NinjaOfficedigital marketing agency with named GEO + AI Search Optimisation service linesnot publichigh
GrizzleHQcontent agency with GEO line (integrated, not standalone SKU)digital PR sprints from $10,000medium
JellyfishHQglobal digital/media agency with first-to-market AI-visibility product (Share of Model™)not publicmedium
POLARISHQspecialist SEO agency with dedicated AI Search / GEO practice (15+ years organic search extended into GEO)not publicmedium-high

Shopify & Webflow agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
DomaineOfficeShopify Plus agency (Shopify Platinum tier; Shopify-exclusive practice)not publichigh
We Make WebsitesHQShopify Plus agency (brand of BORN / Tech Mahindra; Platinum tier via consolidated BORN directory listing)not publicmedium-high

Video & creative studios

full category roster →
ProviderPresenceTypePublic pricingEvidence
FameHQB2B podcast agency — productized monthly subscription ('Fame OS')monthly subscription $4,000-$10,000/mo depending on concurrent campaigns (founder/third-party interviewsmedium

Development & design studios

full category roster →
ProviderPresenceTypePublic pricingEvidence
GeekyAntsOfficeproduct engineering studio with major open-source footprintnot publichigh
KotoHQB2B brand & web design studio (tech/SaaS brand identity systems, built to live inside product UI)not on own sitehigh
MonksHQAI-led digital/creative/production and technology services company (S4Capital's unitary operating brand)not publicmedium-high
TheodoOfficetech consultancy / digital product development group (Theodo Group, holding M33) with specialist entities for web, mobile, data, fintechnot publichigh
ustwoHQdigital product design and development studio; majority employee-owned (EOT since 2022); B Corpnot publichigh

SDR & outbound agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
memoryBlueOfficeoutsourced sales development firm for high-tech; also runs hire-out/recruiting model (SDR 'Academy')not published on own site (ROI calculator instead)high
ProviderPresenceTypePublic pricingEvidence
Momentum ITSMAHQaccount-based growth consultancy; ITSMA is widely credited as the originator of ABM as a formal practice; runs research, advisory, training/certificationnot publicmedium
Pretzl (formerly Agent3)HQABM pioneer (1:1, 1:few, 1:many programs + consulting); now part of Next Fifteen-owned Pretzlnot publichigh

Email & retention agencies

full category roster →
ProviderPresenceTypePublic pricingEvidence
Underground EcomHQKlaviyo retention agency — Elite Master partner; Klaviyo Agency/Partner of the Year 2025not publichigh