From scattered event data to an audit-ready footprint.
Four steps. Your first event baseline can be in place within two weeks.
- 7
- Event emissions categories measured
- Scope 1–3
- Greenhouse gas accounting coverage
- 2× a year
- Emissions factors refreshed
- GHG Protocol & ISO 14064-1
- Aligned methodology
How event data becomes a number you can defend
Bring in the data you already collect
Enter data directly, upload it in bulk, or have suppliers submit their own figures through the portal. On Enterprise plans, registration data connects from Cvent, EventsAir or your own platform via API.
Data is structured, not guessed
Every record is matched to an emissions factor and a category. Where a figure is estimated, the record says so and shows the method used.
Read the footprint by event or portfolio
One event view for the delivery team, one consolidated view for the program. Same categories, same legend, same numbers.
Export audit-ready reports
Reporting aligned with the GHG Protocol and ISO 14064-1, with the evidence trail attached to each figure.
Works with the tools you already run events on
EventZero sits above your event stack and pulls in the data you already collect.
Your event platform
Open API access connects EventZero to the system where you already manage registrations and attendees like Cvent or EventsAir.
CSV upload
Bring travel, accommodation and logistics data in bulk on a standard template.
Supplier portal
Venues and vendors submit their own data against your event.
Manual entry
Fill any gaps directly in EventZero, with estimates flagged as estimates.
Onboarding
What your first two weeks look like
A first event baseline can be in place within two weeks. The free trial covers the core platform: direct data entry, automated calculations and your event dashboard.
Day 1
Set up your event
Create your event profile, including event type, scale and the emissions categories that apply. No lengthy configuration.
Days 2 and 3
Add your data
Enter your event data directly across the seven emissions categories. Loading last year's completed event gives you a baseline to measure against. On paid plans, suppliers submit their own figures through the portal, and larger data sets upload in bulk.
Week 1
See your first baseline
EventZero applies current international emissions factors and returns a structured Scope 1, 2 and 3 baseline for your event, with estimates flagged as estimates.
Week 2
Review your results
Your event dashboard shows which categories drive your footprint. On Professional and above, AI insights flag your highest-impact reduction opportunities, and you can export a PDF sustainability report.
After the trial
Scale across your program
Choose the plan that fits your program. Paid plans add supplier collaboration, bulk uploads and, on Enterprise, platform integrations. Apply the same method to every event, so your footprint stays comparable year over year.
Why not a generic carbon tool or a spreadsheet?
Generic carbon tools and spreadsheets weren't built for events. EventZero was.
Event-specific emissions factors
- EventZero
- Generic carbon tools
- Spreadsheets
Automated data collection from event platforms
- EventZero
- Generic carbon tools
- Spreadsheets
AI-generated reduction recommendations
- EventZero
- Generic carbon tools
- Spreadsheets
Aligned with GHG Protocol and ISO 14064-1
- EventZero
- Generic carbon tools
- Partial
- Spreadsheets
Supplier collaboration portal
- EventZero
- Generic carbon tools
- Spreadsheets
Portfolio-level benchmarking
- EventZero
- Generic carbon tools
- Partial
- Spreadsheets
Stakeholder-ready report generation
- EventZero
- Generic carbon tools
- Partial
- Spreadsheets
Emissions factors updated twice per year
- EventZero
- Generic carbon tools
- Varies
- Spreadsheets
| Capability | EventZero | Generic Carbon Tools | Spreadsheets |
|---|---|---|---|
| Event-specific emissions factors | |||
| Automated data collection from event platforms | |||
| AI-generated reduction recommendations | |||
| Aligned with GHG Protocol and ISO 14064-1 | Partial | ||
| Supplier collaboration portal | |||
| Portfolio-level benchmarking | Partial | ||
| Stakeholder-ready report generation | Partial | ||
| Emissions factors updated twice per year | Varies |
FAQ
Common questions
Ready to lead on sustainability?
See how EventZero turns your event data into structured sustainability intelligence — in 14 days, no credit card required.
No credit card required.