AI-first · Global event marketing specialists
We fill events.
We sell tickets. We fill trade show floors. We've done it 500+ times across every event type imaginable.
Trusted by SXSW, Diversified, Melbourne Motor Show, Art Central Hong Kong and 500+ events worldwide.
Trusted by leading event organisers worldwide
Recognition
Best Digital Marketing
Silver Award Winner
Best Team Supplier
Award Winner
For more than 13 years they've felt like an extension of our internal team — consistently helping us hit ticket sales targets across Sydney Contemporary, Good Food & Wine Shows and more.
Jo Duncan
CEO, Sydney Contemporary & Aotearoa Art Fair
Why HED
What Makes Half Eaten Donut Different
Event Mastery
13+ years, 500+ events, and proven systems built to drive attendance, ticket sales, and exhibitor outcomes.
Senior Led
Experienced strategists on every account. No layers. No hand-offs. No surprises.
Clear ROI
Reporting built around registrations, revenue, and outcomes, not vanity metrics.
Who we work with
Two audiences. One performance team.
For event organisers
We fill your event
Ticket sales, exhibitor recruitment, sponsor activation. End-to-end campaign delivery for organisers running consumer events, trade shows, conferences and festivals.
See our event services →For brands and exhibitors
We generate your leads
Performance marketing for B2B, fintech, crypto and consumer brands. Plus targeted lead-gen campaigns for exhibitors and sponsors at major events.
See how we work with brands →Our Mission
The DONUT methodology
DATA
You know what converts before you spend.
OPTIMISE
Every dollar works harder over time.
NAVIGATE
Platform complexity handled. For you.
UNDERSTAND
Deep category knowledge, every event type.
TARGET
Right message. Right person. Right moment.
Case Studies
So far, we've worked on
500+ successful campaigns
INTERNATIONAL ART FAIR
Tokyo Gendai
Campaign live in 24hrs
Japan
CONSUMER EVENT
SXSW Sydney
345,000 attendance · +15%
Australia
MOTOR SHOW
Melbourne Motor Show
Over 100,000 attendees
Australia
TRADE SHOW / EXHIBITOR
EXA
1,012% ROAS · 55 leads
Australia
EXPO
AusFitness Expo
Results available on request
Australia
OUTDOOR & LIFESTYLE
National 4x4
Results available on request
Australia
Free Tools
Free tools for event marketers
Built from 10+ years of campaign data. Enter your numbers, get an instant answer.
Testimonials
What our clients say
"For more than 13 years they've felt like an extension of our internal team — consistently helping us hit ticket sales targets across Sydney Contemporary, Good Food & Wine Shows and more."
Jo Duncan
CEO, Sydney Contemporary & Aotearoa Art Fair
"The Museum of Contemporary Art Australia and Half Eaten Donut have worked together year-round for several years, including six major international campaigns. We value their deep understanding of the arts, ticketed events, and digital marketing. The team are always able to work through complex projects with flexibility and strategic thinking to deliver the best results for the Museum."
Claire Johnson
Marketing Manager, Museum of Contemporary Art
"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
"They were proactive and responsive and know the event space extremely well. The results from the digital campaign were great and we exceeded our ticket target."
Electra Foley
Marketing Manager, Sydney Contemporary
"The results they achieved in one campaign far exceeded our expectations. They introduced us to new marketing channels that will be important for future campaigns."
Rita Nehme
Marketing Manager, Terrapinn
"They smashed the targets and we are excited to work with them on future projects."
David Weisz
Director, Reservoir Partners
FAQ
Frequently asked questions
Ready to sell out your next event?
Or drop us a line at robin@halfeatendonut.com