SEI
Sustainable
Equestrian
Initiative
Membership & certification costs

Two costs, clearly separated

SEI operates with a transparent annual membership structure. Membership gives you the Standard, the reporting tool, the Community and the resources to prepare and improve. The independent Certification Body determines the audit cost and makes the certification decision.

Annual membership
€450
per year, excluding VAT
  • SEI Online Reporting Tool (SEI-ORT)
  • SEI Community
  • SEI resources and supporting materials
  • Core Mandatory Legal requirements (CML)
  • One Activity Module applicable to your activities
  • SEI Participant Logo upon registration
  • SEI Certified Logo upon certification
After registration the SEI Team identifies your applicable Modules, so you do not undertake unnecessary work or miss requirements.
Additional modules
€100
per additional module, per year
  • CML + 1 Activity Module = €450 / year
  • CML + 2 Activity Modules = €550 / year
  • CML + 3 Activity Modules = €650 / year
All prices exclude VAT. Dutch VAT is added for participants established in the Netherlands; eligible EU businesses with a valid EU VAT number are normally reverse-charged.
Audit & certification
Quoted
by the Certification Body
  • Depends on activities, size, locations, modules and scope
  • Quotation provided directly to the participant
  • The Body appoints the auditor and makes the decision
SEI does not determine the audit price and does not grant certification.
What membership includes

Everything you need to prepare

Membership provides the Standard, SEI-ORT, your applicable Modules, the Community and the resources to prepare and continually improve. Joining does not commit you to an audit date: you decide when your evidence is ready.

Sello SEI Participant
SEI ParticipantYours to use from the moment your organisation registers and its membership is active.
Sello SEI Certified
SEI CertifiedYours to use once an independent Certification Body has granted certification within your approved scope.

Start your SEI journey

Complete the registration form and the SEI Team will contact you to confirm your activities, identify the applicable Activity Modules and guide you through the next steps.

The future starts here

Stay connected with the future of equestrianism.

SEI Newsletter

SEI

SEI — Sustainable Equestrian Initiative. An evidence-based sustainability certification standard created for the equestrian world, with horse wellbeing at its centre. Established 2023, The Netherlands.

SEI | Sustainable Equestrian Initiative
Address: Nicolaes Maestraat 2, Office 213
1506 LB Zaandam, The Netherlands
Telephone: 0031-(0)85-301 0650
Dutch Chamber of Commerce: 67691951
EU VAT (VIES): NL857133147B01

© 2026 Sustainable Equestrian Initiative. All rights reserved.

Responsible equestrianism. Proven for the future.