Below are a list of software  providers that can be used to Monitor, Report or Verify Emissions

Airlines.

https://www.aviaso.com/

https://www.etsaviation.com/

https://www.aviaso.com/

Openairlines

Aviaso EU-ETS Aviaso Inc.

Aviation Footprinter™ETS Aviation Ltd

OSyS’ ETS MRV solution O-sys, LLC

eMission Airpas Aviation AG

FuelPlus ONE EMISSIONS Fuel Plus Software GmbH

SkyBreathe registered trademark of NEXTOPS.

Sabena Flight Academy SFA Consulting

Aircraft Emissions Manager SITA

Shipping.

Your marine industry partner for asset, operations and commercial shipping management

https://www.martek-marine.com/evolution-emstm-marine-engine-emissions-monitoring
Combination Hardware and Software

http://explicit.dk/

Compliance monitoring hardware and software solution

http://www.ecomarinepower.com/en/aquarius-mas