Companies Using Acast in London: 84 Active Firms (2026)
London companies running podcast technology on their websites publish, embed or measure audio content for local and international audiences.
Podcast-hosting, embedding and audio-measurement tools usually sit with marketing, editorial, communications or membership teams rather than central IT. Adoption signals a company that treats audio as part of its owned-media operation: publishing interviews, commentary, client education or event follow-up, then measuring listener behaviour through the same website estate used for campaigns and lead capture. The London users in scope tend to be lean operators, often serving both UK and international audiences, with enough digital marketing maturity to connect audio pages to analytics, advertising tags and content-management workflows.
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London has 84 actively trading companies running this podcast technology on their public websites. The adoption base is small enough to inspect manually, but broad enough to include media publishers, wealth managers, marketing agencies, consultancies and SaaS firms. Reported employment is visible for 27 firms, covering 272 staff in total, so the footprint is weighted towards small teams rather than large corporate estates. Only 4 companies have reported turnover above £5M, while 9 were incorporated since 2022, pointing to a cohort split between established content-led businesses and younger firms testing audio as part of their digital channel mix.
Audio publishing brings ordinary website compliance into contact with media and marketing practice. Companies running this stack need clear consent handling where listening behaviour is tied to analytics, retargeting or newsletter capture, particularly under GDPR and ICO expectations around cookies and comparable tracking. The wider website stack also points to campaign use: tag-management scripts appear on 54.8% of the cohort, content-management systems on 45.2%, CDN services on 40.5%, web analytics on 33.3%, video embeds on 32.1%, bot checks on 29.8% and professional-network advertising tags on 28.6%. Procurement is therefore less about standalone audio hosting and more about how publishing, attribution and audience development sit together.
Adoption appears tied to whether audio remains a regular editorial habit rather than a campaign experiment. Media and publishing users have the clearest reason to keep dedicated podcast infrastructure, while wealth managers, agencies and consultancies tend to use it when thought-leadership formats can be repurposed across newsletters, events and sales follow-up. Budget pressure may push some smaller teams towards bundled website and marketing suites, especially where measurement needs are basic. The more durable users are likely to be those with repeat publishing schedules, clear compliance ownership and an audience-development workflow that already spans web, email and social channels.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of Acast rises with company size across the trading companies in this cohort. 0% of the 532,485 companies with under 10 employees run Acast (55 detected). 0.2% of the 15,364 companies with 10–50 employees run Acast (26 detected). 0.1% of the 1,763 companies with over 50 employees run Acast (1 detected). That is a 0.1% gap between the over 50 employees and under 10 employees bands.
84
Active firms
2026
4
Above £5M turnover
Trading firms
6
Median headcount
Filed accounts
191
Verified directors
Across this cohort
Top companies using Acast in London
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Operates a podcast hosting, distribution and monetization platform. Provides tools for creators to manage and publish podcasts, distribute to listening apps, insert advertising, offer subscriptions,…
Targets independent podcasters, professional creators, publishers and media networks looking to monetise and grow shows, alongside brands and agencies buying podcast advertising to reach engaged…
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsPublishes online news, analysis and reports covering the global travel retail and duty‑free industry, including airports, airlines, brands and retailers, and produces digital magazines, newsletters,…
Serves B2B audiences in travel retail and airport commercial sectors, including brands, airport landlords, retailers, airlines, cruise and ferry operators, food and beverage providers, and duty-free…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
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Computed from 5 filingsProduces television programmes, podcasts and branded video content, and operates digital and social media channels. Manages and distributes online video through a YouTube multi‑channel network and…
Serves broadcasters, streaming and digital platforms, consumer brands, podcast talent and digital channel owners seeking content partnerships across TV, audio, social and online channels.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsProduces investigative journalism and analytical reporting published online and through podcasts and audio series. Operates a digital media platform featuring long‑form articles, documentary-style…
Serves individual subscribers, readers, listeners and viewers interested in investigative journalism, current affairs, culture and long-form audio, alongside audiences attending journalism-led events.
Financial Health
WeakWeak
Location
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Computed from 3 filingsOperates an online radio station producing and broadcasting live music and talk shows via internet streaming. Provides scheduled DJ sets, interviews, and cultural programming across multiple…
Serves consumers worldwide who listen to online independent radio, targeting music, DJ, arts and culture audiences interested in Soho, New York and club-scene programming.
Financial Health
DistressedDistressed · -19% CAGR over 2y
Location
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Computed from 5 filingsOperates an online country music media platform publishing news, interviews, articles, podcasts, radio streams and music videos. Produces and distributes the CountryLine TV show and related digital…
Serves consumers who are country music fans, including listeners and viewers seeking online radio, TV shows, interviews, news, podcasts and live-session content, with emphasis on UK and European tour…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
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Computed from 5 filingsProduces and promotes live comedy shows, podcast series and comedy festivals. Organises tours and live events for comedians, records and distributes podcasts, and sells tickets and related…
Serves comedy audiences and podcast listeners, mainly consumers buying tickets for live shows, tours and festivals across the UK and Ireland, plus fans subscribing to podcasts and event updates.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsPublishes Prospect, a monthly current affairs magazine covering politics, economics, culture and ideas. Produces long-form journalism, opinion columns and analysis online and in print, alongside…
Serves individual readers and subscribers interested in UK and international politics, policy, ideas and culture, plus organisations seeking policy insight reports, events or commercial opportunities…
Financial Health
StrongStrong · Hiring · 8% CAGR over 4y
Location
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Computed from 5 filingsProduces speech radio programmes and podcasts for broadcasters, media organisations and brands. Provides audio production, editorial development and digital podcast creation for platforms including…
Serves B2B clients including broadcasters, podcast platforms, publishers and brands, with named customers such as the BBC, Audible, Spotify, Politico, The Telegraph, DeepMind and the National Trust.
Financial Health
WeakWeak · Hiring · 3% CAGR over 5y
Location
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Computed from 4 filingsPublishes Disegno, a quarterly magazine covering architecture, design and fashion, featuring long‑form reporting, interviews and criticism. Produces related digital content including articles and…
Serves design-conscious consumers and industry professionals interested in architecture, design and fashion, including designers, brands, craftspeople and academics.
Financial Health
WeakWeak · 0% CAGR over 3y
Location
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Computed from 4 filingsProduces parenting-focused media content including podcasts, online articles and videos, and hosts virtual and live events featuring discussions with guests and experts about pregnancy, birth, mental…
Serves a consumer audience of expectant, new and experienced parents seeking relatable parenthood content, peer community, podcasts and live-event discussions.
Financial Health
StrongStrong · Hiring · 43% CAGR over 3y
Location
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Computed from 5 filingsDevelops a mobile publishing platform used by media companies to create and manage iOS, Android and web apps. The software supports digital editions, live content, podcasts and video, and provides…
Serves B2B publishers and media brands, including newspapers, magazines and digital-first news organisations, targeting product, audience, subscription and editorial teams that manage reader…
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 4y
Location
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Computed from 5 filingsProvides podcast development and production services for brands and organisations, including concept development, storytelling, recording and editing, and distribution support, and produces original…
Serves UK businesses and organisations commissioning podcasts, especially brand, marketing and content teams seeking entertainment or purpose-driven audio storytelling.
Financial Health
WeakWeak · -7% CAGR over 4y
Location
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Computed from 5 filingsOperates an online media and membership platform publishing articles, podcasts and commentary focused on the experiences of Black British and mixed‑race women, and offering community events,…
Serves a B2C audience of Black and mixed-race British women seeking lifestyle, culture, wellness, relationships and current affairs content, plus community membership, events and related perks.
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides career development training, learning programmes and resources for individuals and organisations, including workshops, toolkits, newsletters, books and the Squiggly Careers podcast focused…
Serves a mix of individual professionals seeking career development and employers, especially HR and learning teams, looking to support employees’ growth and retention.
Financial Health
StrongStrong · Growing, Hiring · 37% CAGR over 4y
Location
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Computed from 5 filingsRepresents voiceover artists including actors, comedians, broadcasters and DJs. Operates a voiceover talent agency providing casting and booking services, with a searchable roster of voices by…
Serves casting directors, producers, broadcasters and advertising agencies seeking UK and international voice talent for media, entertainment and commercial projects.
Financial Health
StableStable · -67% CAGR over 4y
Location
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Computed from 5 filingsOperates an online community and media platform for Christian women, producing podcasts, blog interviews and a print magazine, and organising events and discussions focused on faith, careers, culture…
Serves ambitious Christian women seeking community, events and media around faith, careers, culture and mainstream industries, alongside supporters and collaborators aligned with its mission.
Financial Health
WeakWeak · Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsProvides audio production and music publishing services for advertising, film, TV and digital content. Offers sound design, voice‑over recording, ADR, mixing, music composition, sonic branding,…
Serves B2B customers including SMEs and global brands, advertising and media agencies, film and TV studios, publishers, and audio platforms commissioning branded, entertainment, podcast and audiobook…
Financial Health
WeakWeak · 2% CAGR over 4y
Location
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Computed from 5 filingsPublishes travel trade media for travel agents and industry professionals, including news, analysis, features and business advice via its TTG website, newsletters and print titles. Also produces…
Sells to B2B travel trade professionals, especially travel agents and advisors in the UK and Ireland, as well as travel agency leaders, luxury agents, cruise specialists and other travel industry…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 3 filingsOperates an online publication covering advertising and marketing creativity, featuring campaign showcases, industry news, interviews, and commentary. Publishes analysis of brand marketing, agency…
Serves B2B audiences in the advertising and marketing sector, including brand marketers, creative agencies, media agencies and industry leaders interested in commercial creativity and campaign work.
Financial Health
StrongStrong
Location
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Produces television and digital media content including entertainment, factual entertainment and children’s programmes. Develops and produces TV series, branded content, short films and podcasts for…
Serves broadcasters, digital platforms and brand clients commissioning entertainment, factual entertainment and children’s content, as well as podcast and branded-content buyers.
Financial Health
N/AN/A
Location
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Computed from 3 filingsOperates digital media networks and entertainment websites, producing and distributing online content across multiple platforms. Provides creator management, influencer marketing, advertising…
Serves brands and advertisers, digital creators, producers and broadcasters in the entertainment and media sectors, targeting organisations seeking digital audiences across online platforms.
Financial Health
StableStable · Hiring · 5% CAGR over 2y
Location
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Computed from 3 filingsPublishes an online news and media platform covering politics, current affairs, entertainment, lifestyle, health, parenting and shopping. Produces articles, opinion pieces, explainers and multimedia…
Sells to UK consumers seeking online news, opinion and lifestyle content, including readers interested in politics, world affairs, entertainment, health, parenting, shopping and LGBTQ+ topics.
Financial Health
DistressedDistressed · -34% CAGR over 2y
Location
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Computed from 5 filingsRepresents and manages comedy performers, presenters, actors, writers, composers, directors, producers and broadcasters. Provides talent management and booking for live performances, podcasts,…
Serves comedy performers, presenters, actors, writers, composers, directors, producers and broadcasters, alongside media and live entertainment buyers seeking represented talent.
Financial Health
StableStable · 2% CAGR over 4y
Location
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Develops an AI content creation platform for producing videos, podcasts, and audio. Provides tools for text‑to‑speech, voice cloning, script‑to‑video generation, AI avatars, and editing workflows,…
Serves enterprise creative, L&D and training teams, publishers, individual creators and developers seeking API access for AI video, podcast and audio production workflows.
Financial Health
N/AN/A
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Develops and sells a personal productivity and goal‑setting mobile application that helps users define long‑term goals, break them into weekly tasks, prioritise activities, and plan schedules. Also…
Sells to individual consumers, especially busy, overwhelmed people who have tried planners before and want structure for personal goals, priorities and life planning.
Financial Health
N/AN/A
Location
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Provides a demand-side platform for programmatic digital advertising, enabling marketers to buy and manage campaigns across channels including connected TV, mobile, display, audio and digital…
Serves B2B advertisers, brand and performance marketing teams, agencies and programmatic media buyers across channels including CTV, audio, mobile, display, native, video and digital out-of-home.
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133 more companies and their verified directors are in the file
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Key facts
About 4% of the trading cohort reports turnover above £5M (4 of 84 firms) — the rest sits below that revenue band.
10% of the cohort was incorporated since 2022 (9 firms), so a sizeable share is in its first few filing cycles.
A tag-management layer appears on 54.8% of sites in the cohort, with analytics tooling detected on 33.3%.
Content management is a visible part of the stack: 45.2% run an open-source publishing system alongside the podcast technology.
Media & Publishing is the largest sector tag at 21.4%, followed by Wealth Management at 20.2%; tags overlap, so this is not a single-industry cohort.
Marketing Agency and Management Consulting account for 16.7% and 9.5%, pointing to use in client work and advisory content as well as editorial publishing.
Site infrastructure varies: 40.5% run a web security and delivery layer, and 29.8% use bot-checking technology.
What else do Acast users run?
Share of the 84 Acast-running UK companies where each technology was also detected. As of June 2026.
Who runs Acast in the UK?
By sector
Sectors overlap, so shares need not sum to 100%.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£744.6K
Median UK turnover
4.8%
Above £5M turnover
9
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 160 companies, alongside financials and websites, in one Excel + CSV file.
How Acast usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
Acast is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
Acast elsewhere
Frequently asked questions
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