About Us

For over 35 years Hennessy Group has delivered robust, proven electrical and process engineering solutions for industry leaders across New Zealand and beyond.

At Hennessy we work closely with our clients to understand their distinct and challenging requirements: providing design, installation, expert service and effective maintenance to meet their business needs.

Hennessy provide three core areas of service:

  • 24/7 Industrial Electrical maintenance and breakdown service
  • Process/Machine controls and Safety System design, assembly and installation
  • Electrical Engineering, AutoCAD, SCADA, HMI automation.

Our reputation is built on our belief that our client’s success ensures our success.  We focus on understanding our client’s individual business requirements to deliver technical solutions which are innovative, practical and affordable. 

From appliance testing to plant control system design and lightning surge protection, you can trust Hennessy to deliver a robust result.


As a client of Hennessy Electrical Engineering we want you to know you have the right to expect the following standards from us.

  • We believe totally that your perception of our performance is always the reality.
  • We will always be honest, upfront and act with integrity in everything we do for you.
  • We will unconditionally respect the confidentiality of our working relationship and honour our commitments to you.
  • We will always promote the best solution for your needs, not the most expensive or the quickest.
  • We will provide fast response to breakdowns and callouts.
  • You will always be respected and not taken for granted.
  • We only use parts and materials from leading world class manufacturers.
  • We will provide friendly, reliable and courteous staff, who put our client’s needs first.
  • We will meet deadlines we set with you, or we will advise you in advance of our inability to do so for reasons outside of our control.
  • We will maintain our knowledge base at the leading edge of technology and keep training to meet future trends.
  • Your feedback is critical to our continuing to innovate and improve. We will always look forward to hearing your ideas, your comments and your suggestions.

Hennessy Electrical Solutions

 Company Profile

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"The strength of the team is each individual member. The strength of each member is the team."

Company Directors

Glen Loft of Hennessy Group Ltd

Glen Loft

Reg. Elect, NZCE
Project Director & Safety Officer

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.

Email Glen Loft
Braden Rassell of Hennessy Group Ltd

Braden Rassell

Reg. 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.

Email Braden Rassell
Hennessy Group 24/7 Maintenance Service
0800 243 243
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