Power Invest

About Us



CJM Management Consultancy

is a United Arab Emirates registered company situated in Dubai. CJM brings 30+ years of knowledge and a powerhouse of cutting edge business solutions and networks to play in answering real business challenges through innovative thinking and in depth industry knowledge of the Energy and Power Sector.

Thomassen Group

was founded in 1998 and today invests in power plants and is an Operations & Maintenance (O&M) specialist. Thomassen has been responsible for the O&M of gas turbine based power plants in excess of 2,600 MW in the Middle East and Africa since the year 2000.

Power Invest as your IPP partner

PID offers creative solutions for your power requirements

- Develop thermal and renewable power projects
- LNG infrastructure development
- Providing in-house Operations & Maintenance

We Are Not Just a Team, We Are a Family


Cees-Jan de Maaker

Cees-Jan is the founder of CJM Management Consultancy and Director of Power Invest DMCC with over 30+ years track record developing projects in power generation, energy and the industrial sectors. He has been the executive lead for business development and growth for both Thomassen International and General Electric in the markets of Europe, Asia, Middle East and Africa. Prior to starting CJM and Power Invest he was a Senior Executive International Business Development for Engro Corporation in Pakistan.


Peter Hertog

Peter is the owner and CEO of the Thomassen Group of Companies, an Energy supporting business for the Africa, Australia, Middle East and Pakistan region. The Thomassen Group of companies employs a team of professionals and has power plant related investments and after sales service operations across the Middle East and Africa. Peter was a member of the Board of Directors, from the date of privatization in December 2005 till May 2009, of Karachi Electricity Supply Company (KESC) producing 2300MW of electrical power for Karachi, Pakistan. Peter was also involved in the privatization of the Nigerian power sector and positioned Thomassen as a technical partner for the 935MW Ughelli power plant.