About Us

Hennessy Electrical Hamilton HQ

Hennessy have forged a track record for success and maintained this for three decades.

Paul Hennessy founded the company in 1982 when it was called PT Hennessy Ltd.

Today Hennessy employs 28 full time staff, including 19 registered tradesmen electrical/project engineers, 2 office administrators, 3 apprentices, 1 electrical draftsman and 3 dedicated process software developers. We believe in developing and training our staff to see them grow both professionally and personally.

Hennessy’s use a number of Waikato subcontractors on a regular basis and tend to use local electrical contractors for projects further afield.

Braden Rassell and Glen Loft joined Paul as directors in 2005, cementing a substantial team and providing a winning combination of technical expertise and experience.

In 2016 Paul Hennessy resigned as a director, but remains with the company in the role of electrical project engineer.


Braden RassellBraden RassellReg. Elect, NZCE IMC
Managing Director

As the managing director of Hennessy Group Limited I acknowledge my responsibility to safeguard the company’s on going success. High on my agenda is to nurture a positive company culture, as it is in my view that this assures our common goal. 
As a provider of Electrical, control systems and automation services I will do my best to provide our customers with value through the efforts of individuals, or groups of employees within our company.

Skype ID: braden_rassell

Glen LoftGlen Loft, Reg. Elect, NZCE
Project Director

Glen is a registered electrician and is a registered electrical engineer. Glen has expertise in machine control systems, factory relocations and process instrumentation. He also has past experience as an independent business owner.

Skype ID: glen_loft