Event Marketing Agency
Elevate your event's success.
Half Eaten Donut is a specialist event marketing agency. We've delivered 500+ campaigns, sold 2M+ tickets and filled trade show floors worldwide. Data-led. AI-first. Results you can report upward.
Trusted by SXSW, Diversified, Melbourne Motor Show, Art Central Hong Kong and 500+ events worldwide.
500+
Events Delivered
2M+
Tickets Sold
13+
Years Experience
400+
Clients Worldwide
What we do
Unleash the full potential of your event
Ticket Sales Campaigns
Data-led campaigns across Meta, Google, YouTube and TikTok designed to sell tickets faster and at a lower cost-per-acquisition than your current approach.
Exhibitor Recruitment
Targeted lead-gen campaigns that fill your trade show floor with qualified exhibitor and sponsor prospects — not just enquiries.
Visitor Promotion
Consumer event promotion built on 13+ years of audience data across every event category — expos, festivals, art fairs, motor shows and more.
International Campaigns
We've run campaigns in Japan, Hong Kong, Singapore, New Zealand and across Europe. Cross-market campaigns, local audience knowledge.
AI-First Delivery
Senior strategy with AI-accelerated execution. Campaigns built in hours, not weeks. Reporting that writes itself. The output of a large agency team at half the overhead.
Real-Time Reporting
Weekly performance reporting that tells you what's working, what isn't and what we're changing — before your deadline arrives.
Why Half Eaten Donut
Achieve event success with expert digital marketing
We built our reputation in event marketing — the most measurable, time-bound, high-stakes form of performance there is. When you have a deadline and a target, there's no hiding behind vanity metrics. That discipline is what we bring to every campaign.
- 13+ years of event benchmark data across every category
- AI-first delivery — the work of a 15-person agency, with a team of six
- Campaigns live in 5 days. Urgent? 24 hours
- No lock-in contracts — we earn the renewal every month
- Full attribution — you see what every dollar produced
- KPIs your board, CEO and sponsors actually care about
Their track record in event marketing, combined with a data-led, audience-first approach, made them the right fit to help drive both awareness and ticket sales for SXSW Sydney.
Sam Saunders
Head of Marketing, SXSW Sydney
FAQ
Frequently asked questions
Ready to fill your next event?
Or drop us a line at robin@halfeatendonut.com