Top 50 E-Invoicing Leaders List Revealed – Now You Vote!

It’s great to see so many familiar faces on TaxTech500’s Top 50 E-Invoicing Leaders 2026 list. This is such a great community to be part of, and the collegiate spirit of collaboration in this market feels unique.

On the list we have the great Christiaan van der Valk, one of the forefathers of e-invoicing; Selin Küçük, General Manager for E-Invoicing at Medius, who is driving awareness of compliance; Alex Baulf, who has worked in compliance for years with Avalara and is such a reliable source of knowledge on e-invoicing; Ellen Leith, who set up the Purchase to Pay Network in 2008, has been running the UKeLab for several years and is incredibly supportive of the UK B2B mandate; Nazar Paradivskyy, a driving force in global compliance with a fierce understanding of what these mandates mean; Gustav Gnosspelius, Director of Compliance at Basware, who is so exact in his knowledge of e-invoicing and tax compliance; and Marcus Laube, who produces the billentis reports and others, and helps educate markets and governments on the net benefits of B2B mandates.

I also have to mention Claire Goad, who now runs Avalara’s e-invoicing organisation. I worked with Claire for eight years, and she is an exceptional human being.

They’re joined by Phil Bailey, Tea Sharp, Stanislava Filcheva, Patricia Rocha Jordan, and Sanna Koskinen. These are all excellent people I’ve had the pleasure of working with directly over the past few years.

There are, of course, many wonderful and truly deserving people who aren’t on this list, and I don’t doubt that will be remedied as the list matures.

I’d encourage you to vote and help build awareness of e-invoicing, especially in markets that are yet to introduce B2B mandates.

Here’s the list to help with the names:

https://www.taxtech500.com/top-50-e-invoicing-leaders-2026-voting