The team that takes FuelEU compliance off your desk

What we do

Ahti Pool is the FuelEU Maritime pooling service of Ahti Climate Ab. Vessels with a compliance deficit join the pool to meet their requirements, and vessels with a surplus contribute it. We manage the pool balance, bookkeeping, reporting and verification support throughout the compliance year, and document the source of every compliance unit. We also support biofuel procurement, charterparty questions, internal pools and EU ETS and UK ETS compliance.

How it started

Ahti was founded in 2022 in response to the FuelEU Maritime regulation. As the industry tried to make sense of the new rules and their economics, we built the first Ahti Calculator to model compliance costs across fuel scenarios. That work led to the Ahti Pool, one of the first commercial FuelEU pools used by multiple fleets.

Why the name "Ahti"?

In the Finnish epic Kalevala, Ahti is the god of the sea: a guardian of the waters whom seafarers asked for safe passage. Our Ahti helps ships find a safe and efficient way through emissions regulation.

About Ahti

Ahti Climate Ab is a Finland-based maritime emission compliance company. We run the Ahti Pool, an all-inclusive FuelEU Maritime pooling service, and extend our support to the wider decarbonisation schemes shipowners face, including biofuel procurement, EU ETS and UK ETS.

Legal name Ahti Climate Ab

Business ID 3301972-8

Founded 2022

Founder and CEO Risto-Juhani Kariranta

Headquarters Hermannin rantatie 8, 00580 Helsinki, Finland

Industry Maritime emissions compliance (FuelEU Maritime pooling and compliance services)

Team 10–20 people, with 100+ years of combined maritime, regulatory experience

FuelEU Maritime pool size Hundreds of vessels

Contact us at info@ahticlimate.com

News and insights FuelEU Maritime guidance and insights here.


Ahti Climate Ab is a Finland-based maritime emission compliance company. We run the Ahti Pool, an all-inclusive FuelEU Maritime pooling service, and extend our support to the wider decarbonisation schemes shipowners face, including biofuel procurement, EU ETS and UK ETS.

Legal name Ahti Climate Ab

Business ID 3301972-8

Founded 2022

Founder and CEO Risto-Juhani Kariranta

Headquarters Hermannin rantatie 8, 00580 Helsinki, Finland

Industry Maritime emissions compliance (FuelEU Maritime pooling and compliance services)

Team 10–20 people, with 100+ years of combined maritime, regulatory experience

FuelEU Maritime pool size Hundreds of vessels

Contact us at info@ahticlimate.com

News and insights FuelEU Maritime guidance and insights here.


Ahti Vessel LNG Carrier

Full-service maritime emission compliance

Why ship operators choose Ahti

Ahti connects emission compliance management across different decarbonisation schemes with the operational decisions that make your fleet resilient.

  • Guaranteed surplus supply

    We guarantee the compliance surplus your fleet needs, in the volumes and timing that suit you.

  • All-inclusive service

    We handle the pool balance, bookkeeping and reporting, so compliance is one less thing for your team to run.

  • Audit-trailed surplus

    Every FuelEU compliance unit has a documented source, reported to you, so your compliance position can be verified.

  • Expert-led

    100+ years of combined maritime experience across fuel, regulation and contracts.

  • Flexible from day one

    Join whether your compliance balance is final or still moving. Buy units monthly as you go, or in bulk, whichever suits your fleet.

  • Vetted pool members

    Every pool member’s vessels and owners are sanctions-screened before joining and monitored while in the pool, so every counterparty is known.

  • Guaranteed surplus supply

    We guarantee the compliance surplus your fleet needs, in the volumes and timing that suit you.

  • All-inclusive service

    We handle the pool balance, bookkeeping and reporting, so compliance is one less thing for your team to run.

  • Audit-trailed surplus

    Every FuelEU compliance unit has a documented source, reported to you, so your compliance position can be verified.

  • Expert-led

    100+ years of combined maritime experience across fuel, regulation and contracts.

  • Flexible from day one

    Join whether your compliance balance is final or still moving. Buy units monthly as you go, or in bulk, whichever suits your fleet.

  • Vetted pool members

    Every pool member’s vessels and owners are sanctions-screened before joining and monitored while in the pool, so every counterparty is known.

Ahti personnel looking at a ship in the horizon

Get in touch

Interested in Ahti?
Send us an email.

Email us at: info@ahticlimate.com