Klaxon.AI
Klaxon.AI is a UK-based martech company that uses AI text-to-speech and audience targeting to produce and broadcast radio and podcast adverts for SMEs, agencies, and recruitment firms via a DIY self-serve tool and a fully managed campaign service.
- Company typePrivate
- Founded2024
- HeadquartersPeterborough, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Klaxon.AI does
Klaxon.AI (legal entity: Klaxon AI Ltd) is a UK-based marketing technology company founded in 2024 by former journalists and headquartered in Peterborough. The company operates an AI-powered audio advertising platform that creates professional radio and podcast adverts from text input without recording studios or voice talent, supporting more than 50 synthetic voices and 20+ languages. Its core technology combines text-to-speech generation, integrated licensed music selection, and an audience-targeting system covering location, demographics, behaviour, device, and status dimensions across 100+ options, paired with media-buying relationships that enable broadcast placement on UK radio stations, connected devices, and podcasts.
Klaxon runs a dual go-to-market: a self-serve DIY product at portal.klaxon.ai that allows users to create and download finished adverts for £49+VAT, and a fully managed end-to-end service priced from £99+VAT for creation plus a £1,200+VAT minimum broadcast budget. The managed offering is packaged into tiered campaign products — BOOST (£2,099+VAT), AMPLIFY (£5,099+VAT), DOMINATE (£10,099+VAT), and a BESPOKE custom tier — with guaranteed audience reach and broadcast across radio, podcasts, and connected devices, supplemented by a host-read podcast sponsorship option. Customers include SMEs, location-based businesses, recruitment companies, marketing agencies (offered via reseller and white-label partnerships), and B2B service providers. Named clients to date include Crooton Recruitment, Practice Plus Group, and Soop Marketing.
The company is privately held, funded to date by an Innovate UK Creative Catalyst grant (amount undisclosed) with no disclosed external VC/PE rounds, and led by CEO Arup Biswas, COO Mark Woodward, CTO Justin Donnelly, and Board Advisor Chris Chandler. Recognitions include Innovate UK backing, a UK representation slot at SXSW, and a 2025 East of England 21toWatch listing.
Klaxon.AI firmographics
Firmographics- Name
- Klaxon.AI
- Legal name
- Klaxon AI Ltd
- Website
- https://klaxon.ai
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Klaxon.AI is a UK-based martech company that uses AI text-to-speech and audience targeting to produce and broadcast radio and podcast adverts for SMEs, agencies, and recruitment firms via a DIY self-serve tool and a fully managed campaign service.
- Ownership category
- akta.pro rank
Klaxon.AI industry classification
Industry- Product category
- Audio Advertising Technology
- NAICS
- Media Representatives (541840), Other Sound Recording Industries (512290), Software Publishers (513210)
- SIC
- Services-Advertising (7310), Services-Advertising Agencies (7311)
- akta.pro primary industry
- Ad Insertion & Monetization (SCTE-35, DAI/SSAI) (MPAHAKAH)
- akta.pro secondary industry
- Voice Assistants & Voice UI (VUI) (HDAAAFAD)
Keywords
Where Klaxon.AI is headquartered
LocationHeadquarters
- HQ city
- Peterborough
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Klaxon.AI business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- DIY Audio Ad Download: Self-serve platform allows users to create adverts for free (25 free credits/month) with a £49+VAT download fee for completed adverts. No ongoing licence fees or restrictions on use of downloaded adverts.
- Fully Managed Ad Creation: Klaxon creates bespoke audio adverts for £99+VAT, including scriptwriting, voice selection, and music licensing. Customer retains full approval rights over ad content.
- Managed Broadcast Campaign: Customer sets advertising budget from £1,200+VAT minimum. Klaxon arranges and manages the broadcast of adverts across radio, podcasts, and connected devices with guaranteed audience delivery, consolidating production and media buying into one managed fee.
- Host-Read Podcast Sponsorship: Premium placement option where podcast hosts read advert messages, enabling sponsorship of high-profile podcasts with UK or international reach. Pricing negotiated separately based on podcast selection.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | DIY self-serve: free to create, £49+VAT to download |
| Hybrid | Pay-as-you-go | Fully managed service: £99+VAT creation + from £1,200+VAT broadcast budget |
| Unit Pricing | Pay-as-you-go | BOOST: £2,099+VAT — 33,000 guaranteed reach, 100,000 plays, 4-week campaign |
| Unit Pricing | Pay-as-you-go | AMPLIFY: £5,099+VAT — 83,000 guaranteed reach, 250,000 plays, 10-week campaign |
| Unit Pricing | Pay-as-you-go | DOMINATE: £10,099+VAT — 166,000 guaranteed reach, 500,000 plays, 20-week campaign |
| Outcome Based/ Performance | Pay-as-you-go | BESPOKE: Custom number of listeners, custom duration, radio/podcast/connected devices |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels6 records
Klaxon.AI product offering
Product offeringCore offering
Klaxon.AI operates an AI-powered audio advertising platform that enables SMEs and marketing agencies to create, target, and broadcast radio and podcast adverts. It combines a self-serve DIY advert creation tool (portal.klaxon.ai) with a fully managed end-to-end campaign service covering scriptwriting, voice production, music licensing, media buying, and broadcast across UK radio, podcasts, and connected devices.
Product overview
Klaxon.AI operates as a unified audio advertising platform consisting of two core service modes: a Fully Managed Service where the company handles end-to-end campaign creation and broadcast for £99 + VAT (with minimum £1,200 + VAT ad budget), and a DIY Self-Service Tool at portal.klaxon.ai where users create and download adverts for £49 + VAT. Pre-configured campaign tiers (BOOST, AMPLIFY, DOMINATE, BESPOKE) offer progressively larger guaranteed audience reach at fixed prices. An add-on Host-Read Podcast Sponsorship service provides premium presenter-delivered advertising. The platform utilises AI for speech synthesis (50+ voices, 20+ languages) and script generation, with targeting across 100+ behavioural options.
Differentiator
Problem solved
Functional benefit
Products and services
- Fully Managed Audio Advertising Service End-to-end audio campaign management service in which Klaxon creates the advert (from £99+VAT), arranges broadcast permissions, and manages the campaign. Covers scriptwriting, voice and music selection, and distribution across UK radio, connected devices, and podcasts. Includes pre-configured campaign tiers (BOOST, AMPLIFY, DOMINATE) and a custom BESPOKE tier, with a minimum advertising budget of £1,200+VAT.
- DIY Audio Advert Creation Tool Self-service AI-powered advert creation tool at portal.klaxon.ai enabling users to create professional radio or podcast adverts in minutes. Users generate or write scripts, select from 50+ AI voices and licensed music tracks, translate into 20+ languages, and download completed adverts for £49+VAT with no ongoing licence fees. Free account creation with 25 monthly credits.
- Host-Read Podcast Advert Sponsorship Premium podcast advertising option where business promotions are read by podcast hosts. Includes premium placement (e.g., at the beginning of podcast episodes) and potential sponsorship of high-profile podcasts with hundreds of thousands of engaged listeners. Available for UK-only or international markets; pricing negotiated separately based on podcast selection.
Quantifiable outcome
- Every £1 spent delivers £7.70 ROI (industry benchmark cited by Klaxon)
- +2 more outcomes
Companies that use Klaxon.AI
Customer profileNamed customers3 records
Segments5 records
Ideal customer profiles4 records
Klaxon.AI technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability5 records
Feature3 records
Klaxon.AI partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Marketing AgenciescoreKlaxon enables marketing agencies to add scalable audio advertising to their client service offering without investing in studios, voice talent, or specialist production teams. Agencies can offer audio ads to SME clients, bundle audio into campaign packages, and increase margins without increasing headcount. Reseller and white-label partnerships available for agencies to brand the service under their own name.
- MarTech PlatformscoreMarTech platforms can embed Klaxon's audio advert creation capabilities into their platform ecosystem, expanding channel capabilities, increasing customer retention and engagement, and enhancing their value proposition to SME customers through integrated campaign workflows.
- Media and Audio NetworkscoreMedia networks and audio broadcasters partner with Klaxon to reduce advertiser friction, increase inventory utilisation, and enable smaller businesses to participate in audio advertising. Klaxon helps advertisers create ads quickly, increasing fill rates and accelerating campaign activation.
Scale indicators8 records
Recent moves6 records
Expansion highlights5 records
Klaxon.AI competitors and assessment
Company assessmentBroad incumbents
- Acast: Global podcast advertising platform with marketplace and self-serve tools connecting advertisers to podcast hosts. Overlaps with Klaxon on podcast campaign distribution and audience targeting for advertisers and agencies.
- Spotify Ad Studio: Self-serve audio ad creation and placement platform from Spotify for advertisers across music and podcast inventory. Comparable to Klaxon's self-serve DIY model with broader reach but less hands-on managed service for SMEs.
- AdsWizz: Audio advertising technology platform (owned by SiriusXM) serving radio, podcast, and streaming audio with programmatic and direct ad serving. Competes with Klaxon on the broadcast/media-buying layer for audio ad inventory.
Emerging players
- ElevenLabs: Leading AI voice synthesis platform with multilingual support and voice cloning. Provides underlying TTS capability that Klaxon-style ad platforms could leverage, and could expand into vertical ad-creation products.
- Murf AI: AI voice generation platform offering a library of synthetic voices for content creation including ads, podcasts, and e-learning. Overlaps with Klaxon's TTS voice stack and could expand into ad creation workflows.
- Podcastle: AI-powered audio content creation suite including text-to-speech, voice cloning, and podcast editing tools. Comparable to Klaxon's DIY advert creation tool for individual creators and small businesses producing audio content.
Others
- Marketcast: Advertising research and media measurement firm covering radio, podcast, and cross-channel effectiveness. Adjacent to Klaxon as a measurement/analytics counterpart in the audio advertising value chain.
- Sounds Profitable: Podcast advertising research, advisory, and events company serving the podcast audio ad ecosystem. Adjacent peer that shapes advertiser behaviour and benchmarks Klaxon's target market for audio and podcast advertising.
Direct peers
- Audioboom: Podcast hosting and advertising platform with dynamic ad insertion and audience targeting capabilities. Comparable to Klaxon's podcast sponsorship and managed broadcast offerings for advertisers seeking targeted podcast reach.
- Wondercraft AI: AI-powered audio ad creation platform that turns text into studio-quality audio ads using synthetic voices. Closest direct competitor to Klaxon's DIY advert creation tool, targeting similar creator and agency use cases.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Klaxon.AI social profiles
Digital presenceKlaxon.AI financial estimates
Financial estimateRevenue estimate
Valuation estimate
Klaxon.AI leadership team
Management profileNumber of profiles
Profiles4 records
Klaxon.AI funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Klaxon.AI M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Klaxon.AI
What does Klaxon.AI do?
Klaxon.AI operates an AI-powered audio advertising platform that enables SMEs and marketing agencies to create, target, and broadcast radio and podcast adverts. It combines a self-serve DIY advert creation tool (portal.klaxon.ai) with a fully managed end-to-end campaign service covering scriptwriting, voice production, music licensing, media buying, and broadcast across UK radio, podcasts, and connected devices.
Is Klaxon.AI a public or private company?
Klaxon.AI is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Klaxon.AI founded?
Klaxon.AI was founded in 2024. It employs 1 to 10 people.
Where is Klaxon.AI based?
Klaxon.AI is headquartered in Peterborough, United Kingdom, in the Europe region.
How does Klaxon.AI make money?
Four revenue lines are on record. DIY Audio Ad Download is the primary driver. The others are fully Managed Ad Creation, managed Broadcast Campaign and host-Read Podcast Sponsorship.
Who are Klaxon.AI's main competitors?
Broad incumbents on record are Acast, Spotify Ad Studio and AdsWizz. Emerging players are ElevenLabs, Murf AI and Podcastle. Others are Marketcast and Sounds Profitable. Direct peers are Audioboom and Wondercraft AI.
Does Klaxon.AI have an API?
No public API is recorded for Klaxon.AI.
What industry is Klaxon.AI in?
Klaxon.AI's product category is Audio Advertising Technology. Its primary akta.pro industry code is MPAHAKAH, Ad Insertion & Monetization (SCTE-35, DAI/SSAI), with a secondary code of HDAAAFAD, Voice Assistants & Voice UI (VUI). Its NAICS code is 541840 and its SIC code is 7310.