A seamless network that works for you.


What does OCA stand for

We believe that the best way to navigate the digital transformation of the congress, conference and meetings industry is with a cooperative of experts from various core industries, working together.

The aims of OCA at a glance

  • Transparent standards for data exchange of all types of digital congress resources

  • Seamless, secure and free data exchange in real time between all cooperating partners

  • Completely open interfaces for new applications and innovative solutions, tailored to the customer’s requirements

  • Decisions on data sovereignty are made exclusively by the customer

Capture. Manage. Deliver.

A revolution in the congress, conference and meetings industry

The members of the “Open Congress Alliance” are team-players and specialists, dedicated to the conference and meetings industry. Our specialised digital solutions work together “hand-in-hand” to create a flexible and modular set of tools that can be modified at any time. For you.

This alliance is your innovative and reliable full-range partner in the ramified world of conference technology

Conferences and customers of OCA members are

UEG Week, Mondial Congress, K.I.T., ECCO, KENES, CIRSE, EAN, CPO Hanser Service, MCI, ESMRMB, IROS, EASL, DOG, ICCBH, ESR – European Society of Radiology, ESVS, ESP, ESMO, ESGAR ,ESHRE, IAS – International AIDS Society, ECTRIMS/MS, ECNP, DGPPN, BASHH, British Transplantation Society and many more…

Members of the Open Congress Alliance are

meta-fusion, ESTENSIS, Documedias


Intelligent Webcast
Next-Generation digital experiences
for large congresses and events

At a glanceWebsite


The Conference Buddies,
Conference Technology.
Hassle free. Since 1996.

At a glance —  Website  —  Twitter  —  Instagram


From submission to publication.
Abstract Management System
and conference app.
At a glance  — Website


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