Mastering complexity

Private yachts, utility craft, refits, newbuilds, ultramodern superyachts – no two special vessel projects are alike. Our services are straightforward and effective. As one of the yacht and utility craft industry’s leading project managers, Koelln-Jacoby owner and operator Jens Meyer has earned a reputation for mastering the unique complexities and challenges of custom shipbuilding.

Our strong track record is your guarantee of expert and effective project management. In more than 15 years of experience representing both owners and shipyards in refit and newbuild projects, he has developed a deep understanding of what owners want – and how to support shipyards in making those individual wishes come true.


We are member of the “Verband für Schiffbau und Meerestechnik e.V.“ 


We are member of the „International Superyacht Society“


We are member of “Deutsche Yachten – Superyacht Germany“ 


We hold the IAPM certified senior project management certificate

We hold the DNV-GL Quality Management System Certificate DIN ISO 9001:2015 


We hold the DNV-GL Certificate Internal Auditor for ISM and ISO 9001:2015 



We hold the AVPQ Certificate 


We hold the IAPM certified international project management certificate


On board winter 2020

The search for transparancy in yacht construction.

Jens Meyer about the need for professional project management in today´s yacht building industry

Our History

The company’s beginnings go back to 1923, when engineer Friedrich Koelln went into business designing ships. With fellow engineer Werner Jacoby as co-director from 1957 on, the company offered an expanded scope of ship design services to the German civilian and military shipbuilding industries.

Following acquisition by Gerhard Stockdreher in 1968, the company entered the global marketplace, specializing in refits and independent project management.

Jens Meyer assumed sole ownership of Koelln-Jacoby in 2010. His greatest assets: deep knowledge, independence and trust.