Direct-response ad operations for brands scaling on TikTok and paid social.
McCarthyKing is a performance advertising agency. We operate TikTok and paid-social campaigns for direct-to-consumer and lead-generation brands, spanning multiple business centers and international markets on behalf of our clients.
About
McCarthyKing was founded by Shayne McCarthy and specializes in direct-response paid-social operations for e-commerce and B2B lead-generation brands. Our focus is building and running high-volume campaigns for clients with a strong emphasis on server-side attribution, first-party audience construction, and automated rules-based optimization. Every client ad account we operate is instrumented with end-to-end tracking from click to conversion — so budget decisions are driven by measured revenue, not platform-reported proxies.
What we do
Campaign operations
Launch, pacing, pause, and budget scaling across client business centers and ad accounts. Rules-based automation keeps hundreds of ad groups honest.
Server-side attribution
UTM and click-ID based matching from the order webhook back to the originating ad group — so revenue per creative is a real number, not a guess.
Audience construction
Hashed first-party converter lists uploaded as custom audiences, with lookalike expansion for prospecting. All identifiers stay inside our infrastructure except for the SHA-256 digests sent to platforms.
Reporting & dashboards
Live client-facing dashboard aggregating spend, ROAS, cost-per-result, attribution confidence, and per-business-center performance.
Who we work with
We currently manage paid-social operations for brands ranging from DTC e-commerce to subscription commerce to B2B lead generation, across European, North American and APAC markets. Full case studies are available under NDA following an introductory call.
How we engage
Monthly retainer plus a performance-aligned percentage of managed ad spend. Minimum three-month engagement. Clients receive direct access to our live reporting dashboard for the duration of the engagement, with weekly review calls and fortnightly written performance reports.
Markets
Clients served across the following markets:
Work with us
To request a proposal, book a discovery call, or discuss an engagement, please get in touch: