Meet Tertium Invest

Tertium Invest B.V., privatly owned,  is the major shareholder of the KCI group of companies, 4P Communications GmbH, mediamixx GmbH and Resolute Research. We have offices in Canada, Germany, The Netherlands and China.

Tertium’s primary and long term goal is to support our operating companies and invest in activities to the mutual benefit of our stakeholders around the world. It is our mission to develop new initiatives designed to keep our companies at the forefront of the media and information business.

We focus on the B2B market using a crossmedial concept with online, printed, event media and research.


KCI is an independent global media and information group with advanced products and a world-leading position within selected areas in the process industry. KCI is market leader in processing and delivering world-wide technical information with high added value for the global flow control and high alloy industry.  KCI Publishing has offices in the Netherlands, Germany, China and Canada. Famous brands Valve World, Stainless Steel World, Pump Engineer, Hose&Coupling World, Duplex World and Managing Ageing Plants.


mediamixx is a full service PR Agency with strong focus on content. Key competence is cross border communication Germany – The Netherlands and vice versa. Services provided: content marketing, translations, event organisation, press meetings and trips, graphical services, consultancy services.


Resolute Research BV is an industrial market research specialist. We provide clients with high-quality market intelligence, including complete development of market drivers, suppliers, distribution channels, growth opportunities, trends, threats, and other market dynamics. What makes Resolute Research unique? The aspect that makes Resolute Research  unique in what we do is the focus on carefully chosen markets. Resolute Research  does not conduct research in all markets but on a set of determined markets. These markets are all linked to the process industries and contain the pump market, valve market (coming soon), and more to develop later.


4P Communications GmbH based in Germany is a full service marketing & advertising company focus in the process industry and leisure market.Broad service package. Marketing, PR, film, event and online/social media.


We are a reliable, flexible, long-term and multi-cultural partner, supplying multi-media information and contacts with high added value on a high service level. We are socially engaged, focusing on environmental issues, with the clear goal to offer our staff, partners and stakeholders every opportunity to evolve both personally and professionally.


We are a leading knowledge, communication and information group connecting business-to-business professionals by building and sustaining global communities, solving their information needs and helping them to develop their professional lives and friendships.


  • Ambition
  • Creativity
  • Solidarity
  • Communicable
  • Authenticity
  • Perseverance
  • Targeted
  • Fair Play