Carbon reports for concerts and corporate events, built from ticket data
TL;DR Carbonstub measures the carbon footprint of a live event, mostly from data the organiser already holds, like ticket postcodes, caterer orders and generator logs. It hands back a reduction plan and a report that can stand up to questions. Listed companies that host events and big promoters pay. Offsets are not part of the product.
India's live entertainment business crossed ₹12,000 crore in 2024[1], and live events grew another 44% in 2025[2]. Crowds now travel to shows. At one global rock band's two Ahmedabad nights, about 222,000 fans came from more than 500 cities, and 86% travelled in[1]. That event published its waste figures, 34,000 kg diverted from landfill, but no carbon number.
Why the gap? It's practical. Most of an event's emissions sit outside the venue. A study of 17 European festivals found audience travel averaged 41% of the footprint, ranging from 18% to 76%, with food and drink next at about 34%[3]. Organisers have no simple way to count either.
What it does, in regulatory terms: emissions measurement and reporting only. Carbonstub does not sell carbon credits or certify anything as "carbon neutral". Any public claim built on its numbers falls under the CCPA's 2024 greenwashing guidelines[4], so reports carry their method and their gaps in plain view.
The tool asks the ticketing platform for anonymised origin cities and travel-mode survey answers, then pulls diesel logs from the production company and menu volumes from caterers. It returns a footprint per attendee, split by source, with a ranked list of changes - a shuttle from the railway station, a smaller meat share, grid power instead of generators.
The seed paired measurement with certified offsetting, and I'd drop the offsets without a second thought. Selling credits to label an event neutral is exactly the claim regulators and journalists now probe, and it puts the startup's credibility on someone else's project. Organisers can still buy offsets, but Carbonstub reports them separately.
The person filling in data is an event manager. The payer is usually the sustainability or ESG team at a listed company that runs conferences, dealer meets and award nights, because those emissions feed its own disclosures. Large promoters are a second buyer, especially when a touring artist or sponsor asks for numbers. There's no public price for an event carbon report in India. Expect to discover pricing in the first pilots.
SEBI's BRSR Core circular of July 2023 set out assurance and value-chain ESG disclosures for listed companies[5], so their vendors get asked for data. The CCPA greenwashing guidelines from October 2024 raise the cost of vague green claims[4]. Live events grew 44% in 2025[2], so the volume is there.
No public figure exists for event sustainability services in India. The adjacent figure is the live entertainment sector, past ₹12,000 crore in 2024[1]. Treat that as context, since Carbonstub would earn a small fee per event on a slice of it, mostly corporate and large ticketed shows.
One UK sustainability body certifies festivals and publishes footprint studies[3], which shows that organisers will pay for a credible third party. Global event-management suites have added carbon calculators, and that band's own tour reports waste and band reuse figures[1]. In India we found no dedicated vendor that measures event footprints from ticket data. The gap is a tool sized for Indian events, with Indian grid and travel factors.
| Difficulty | Moderate (36/100) |
| Starting capital | ₹45–80 L |
| Time to launch | 6–9 months |
The software is not the hard part, getting clean data out of ticketing platforms, caterers and production firms is. Each event is a small consulting job until the data pipes are standard. Your emission factors also need a method that an assurance provider will accept.
No licence is needed to measure and report emissions. The rules that bite are about the claims made with your numbers.
Building this outside India? The categories above usually have a local equivalent, so check with your own regulator.
Don't let AI produce a final number that goes into a client's disclosure or a public claim without a human checking the method and the data. One wrong headline figure is a greenwashing problem with your name on it.
Want to work out the AI layer for Carbonstub? Talk to Yash →
I'd back this for a founder from sustainability consulting or event production who likes careful work. If you're hoping for a carbon-credit trading margin then it's a poor fit. Prove first that three listed companies will pay for a report on an event they already run, and that one ticketing platform will hand over origin data.
Plan for roughly ₹45–80 L, mostly the measurement tool, emission-factor work and early pilot events that run like consulting jobs.
No licence while you only measure and report. Your reports must stay within the CCPA's greenwashing guidelines, and selling or retiring credits would change that.
Yes, and in some places buyers already ask for it. Green-claims rules and disclosure standards differ, so check your local regulator before you sell.
The free Carbonstub validation kit has the line-by-line capital breakdown, the effort scoring, the disclosure and consumer-claims checklist, a 14-day validation sprint with pass/fail targets, a 90-day launch plan, 10 interview questions for event and ESG teams, and 5 assumptions to test. Download the kit →
Thinking about building Carbonstub or something close to it? The make-or-break work is getting ticketing and catering data out of partners who have no reason to share it yet. If you need a hand, you know where to find me. Talk to Yash →
For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.