About

Photography is the most complex medium in the art market. That’s why we started there.

Vintage prints, lifetime and posthumous prints, editions, negatives, estates — no medium asks more of a record. Solve it for photography, and it works for every work of art.

COLLEKTON launches at Paris Photo · 12–15 November 2026

COLLEKTON is where you register works, organise exhibitions and work with galleries, artists, collektors and institutions on the same source record for every work.

Why it works

Five questions every work should be able to answer.

  1. 01

    Who made it?

    The artist is the first fact attached to the work. Not a name typed three ways into three systems.

  2. 02

    When?

    Made, produced, changed hands. Dates drift unless someone records them while they are still known.

  3. 03

    Where has it been?

    Every exhibition, every loan, every wall. A work’s history belongs to the work.

  4. 04

    Which edition?

    Number, size, technique, signature. The details that make this work this work and no other.

  5. 05

    Make provenance visible and strengthen its significance.

1 question answered by the relevant experts, available to everyone.

Team

Who's behind it.

Built by people who know the art world from the inside.

Julian Sander

Julian Sander

Great-grandson of August Sander, second-generation gallerist and fourth-generation art dealer and photographer. He grew up in the trade and has worked in it professionally since 2009 — and has been a programmer since childhood. More than ten years ago, unhappy with the software available to galleries, he began building his own. Galerie Julian Sander in Cologne has been the live pilot ever since.

Ruediger Glatz

Ruediger Glatz

Lens-based artist and co-founder of MONTANA CANS, Ruediger has spent his career building a brand from scratch. He came to Julian with an idea for a database for artists. A gallerist and an artist — two sides of the market — decided to build something far bigger.

A platform developed by an internationally renowned gallerist and an established artist and businessman over a period of more than 10 years.

Imprint

Four weeks free. Then pay what fits your budget.