Knowledge and experience behind the certification

The certification are managed by Greentime, but it's the external auditors who
review and approve the certifications and give you the right to use the logos.

Requirements for the auditors

The auditors we hire have extensive experience of working professionally with sustainability issues but also extensive experience of the event industry. Thus, the auditors are well acquainted with the challenges you face. The requirements for becoming an auditor are at least one year of studies in the area of sustainability and experience of several different types of events in the industry.

To become an approved auditor and hold the rights to issue Greentime's certification, the auditor must have undergone auditing training at Greentime. Thereafter, the aspirant must practically participate in an audit with an already approved auditor before they are approved.


Peter Reelfs, Northflash

Peter's main competence is to support destinations and companies in the hospitality industry as well as event organizers to gain strength in their sustainability work. It can be about achieving a certification or being a continuous support. Peter is, among other things, a certified public accountant for Green Destinations and Sustainable Events. In addition, Peter trains in sustainable tourism, in sustainability at events and has expertise in sustainable business management and product development. 

Valérie Hasler, Trossa AB

Valerie Hasler works as a sustainability consultant at Trossa. She carries out consulting assignments within materiality analyzes, sustainability strategies and sustainability reporting, as well as projects with a focus on responsible purchasing, supplier follow-ups / due diligence or sustainable events. Valerie also has many years of experience in developing, implementing and auditing corporate processes in multinational companies from various industries, including the event industry. Valerie holds an MBA in Sustainability Management from Leuphana University of Lüneburg (Germany). In her previous work, she has been an advisor and organizer for festivals and catering in Switzerland and also has a degree in hotel management.

Sofie Ullström, Swedish Icons

Sofie has many years of experience in the sustainable hospitality industry. It started in 2009 at Lund University where she wrote a master's thesis on Costa Rica's national certification for sustainable tourism. Among other things, she has run a sustainability network in Gävle municipality for companies and through the network has supported several events and conferences to achieve environmental certification. 2018 - 2019 Sofie worked as a sub-project manager for U23EM in Athletics in Gävle. There she was responsible for leading the sustainability work and certifying the entire event. Today, Sofie works to help others environmentally certify their business.