Quick facts
  • Year established:
  • Website:
  • Contact
    • O'Neill & Brennan Group, Metropolitan House, 3 Darkes Lane, Potters Bar, Hertfordshire, United Kingdom, EN6 1AG
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About O'Neill & Brennan Construction Ltd

O'Neill & Brennan has firmly cemented its position as the preferred supplier of staff to many of the largest construction contractors in the UK and Ireland.

O'Neill & Brennan is a family business that has successfully grown over the last 30 years due to the success of their employees. The owners have created an environment where employees can grow and succeed in their careers and promote career development from day one of their employment.

Their commitment as a business is to provide a career path and sustainable future for all staff by achieving controlled growth with careful attention to margins, client selection and cash management.

They like to create a happy and friendly place to work, where people have the opportunity to have autonomy and progress and develop their careers. When teams do well, they are taken out for drinks or dinner, or even have lunch brought in. People's successes are also shared on Workplace so that other teams can see what is being achieved by others.

Not only are construction and recruitment industries on the rise, but the dynamic fast-paced environment, varied work and financial rewards, make O'Neill & Brennan an inspired career choice.

What is it like to work for O'Neill & Brennan Construction Ltd

On a day to day basis, the owners who are based at their head office make an effort to walk around the office and say hello to people, often stopping to have conversations to find out how things are at work and in their personal lives.
Giving Something Back
Giving Something Back
O'Neill & Brennan encourage employees to participate in charity events to raise money for various charities they support, as well as charities that clients support.
My Company
My Company
O'Neill & Brennan give new employees a welcome box which is delivered to their desk in time for their first day. The welcome box contains a branded notebook, coffee cup, water bottle, USB, pen, company handbook and welcome postcard.  

Learn more about the 8 factors of workplace engagement here


  • Gym

    Companies offering either free gym/ sports facilities or subsidised gym membership for all employees

  • Health Insurance
    Health Insurance

    Companies offering private health insurance for all employees

  • Development

    Companies that provide support for non-work related training to all staff

  • Family Friendly
    Family Friendly

    School hours contracts offered to all staff

Company Statistics

  • Staff:


  • UK sites:


  • Staff Turnover:


  • Average Age:


  • Earning £35,000+:


  • Male : Female:

    62% / 38%


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