Trainline sustainability score: 60/100
Exceptional starts at 75. The highest score on SINK is 71.
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Trainline is a London-listed online platform for rail and coach tickets in the UK and Europe, selling through its apps and websites to travellers and businesses. It reported £452.7 million of revenue for the year to 28 February 2026, with about 986 employees.
Founded 2019Head office London, United KingdomStaff ~986 (2026)Revenue £452.7 million revenue (year ended 28 February 2026; 2025: £442.1 million)Website ↗
Trainline reports verified Scope 1, 2 and 3 emissions and SBTi-validated targets, and its total fell from 21,636 to 19,667 tCO2e in FY2026. But its Scope 1 and 2 are above its 2020 baseline after its London office moved off renewable power, most of its Scope 3 is estimated from spend, and it reports no nature assessment.
Trainline scores 60/100 (Leading practice) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified November 2026.
That places Trainline joint 13th of 1,118 companies scored, and 6th of 73 in SaaS / Digital Services.
What is Trainline doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Controversies & Red Flags (8/10, 8/10). Weakest on Energy Source and Nature & Biodiversity Impact (3/10, 3/10).
Where Trainline lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
What would raise this score
- How clean its energy isMove to a renewable energy tariff or make a major efficiency investment.
- Its effect on natureAssess its effect on nature and publish a basic environmental policy.
- How it uses materials and handles wasteReport measurable waste or recycling targets publicly.
Every question that lost points
- Emissions from its own operations8/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain7/10No full value-chain map or supplier engagement programme.
- Whether its emissions are falling6/10No consistent fall over several years across its operations and supply chain.
- How clean its energy is3/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature3/10No assessment of its effect on nature, and no basic environmental policy.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets7/10No validated long-term net zero target.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Trainline's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Trainline's score based on?
11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
27% of them were published by Trainline itself; the rest come from independent sources.
Trainline prints its FY2026 Scope 3 emissions category by category; the Scope 3 figure shown (19,202.78 tCO2e) is our sum of its own printed lines. The total shown (19,666.75 tCO2e) is Trainline's own printed figure.
“Trainline has used the main requirements of the Greenhouse Gas Protocol Corporate Standard to calculate our emissions”
“Total Emissions Scope 1 and 2 463.98 251.96”
“Total tCO2e Scope 1, 2 & 3 (location-based)”
“It will reduce absolute scope 1 and 2 greenhouse gas emissions 55.2% by 2030 from a 2020 base year”
“The Science Based Targets initiative ( SBTi ) has validated Trainline’s targets to reach net zero by 2040.”
“We therefore concluded that the claims that customers”
“Adverts for online train ticket retailer Trainline featuring claims about its prices were “misleading”, a watchdog has said.”
“including third party platforms such as Trainline”
“Trainline is encouraging people to shift to rail travel in order to meet the UK's net zero goals for 2050.”
“Calculations are based on CO2 / passenger km: comparing an average petrol car”
“Two ads for Trainline , promising that customers would not find cheaper train tickets elsewhere, were deemed to be misleading by the ASA.”
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How does Trainline compare with other saas / digital services companies?
Where Trainline sits among saas / digital services peers.
Among the 73 major saas / digital services brands we've scored, Trainline sits 6th of 73.
Who scores higher in SaaS / Digital Services?
The 3 companies in the sector scoring nearest above Trainline.
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