Quick facts
  • What we do:
    Construction Recruitment
  • Year established:
  • Website:
  • Contact
    • Metropolitan House, 3 Darkes Lane, Potters Bar, Hertfordshire, EN6 1AG

About O'Neill & Brennan Construction Ltd

O’Neill & Brennan are a dedicated recruitment solutions business who have firmly cemented a position as the preferred supplier of staff to many of the largest construction contractors in the UK and Ireland.

Established in 1990, the company possesses the industry knowledge and experience to deliver a full logistics and recruitment solution for projects of significant size and scale, as well as smaller projects in remote locations. Over the years, they have accumulated numerous industry accreditations, awards and certifications that demonstrate the quality of their work.

O’Neill & Brennan offer services for a number of sectors, including labour & trades, professional & technical, civils, energy & power, building services & facilities management, and IMWL & white collar. They can point to years of experience and success working within each of these industries.

The firm has delivered construction solutions on projects in locations such as East Village, Canary Wharf, GCHQ and Bristol Airport, and they continue to be a trusted name in construction recruitment.

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

Company managers are constantly working to improve staff engagement, advance the company’s sustainability efforts, and deliver on the organisation’s values. The owners and directors will always make time to speak to staff about professional and personal matters.
My Company
My Company
Company updates are sent out once a year and to give employees an indication of how the business is performing, with quarterly newsletters covering success stories and staff news. A dedicated and experience HR Manager was also recently brought in to look after staff welfare and find new ways to engage the team.
Fair Deal
Fair Deal
After completing their probation period, client-facing employees receive a company-branded Barbour jacket, and when teams do well they are taken out for drinks or dinner. Additionally, annual leave allowances were recently increased, and more fun charity events and opportunities for staff to socialise away from their desks are being devised.

Learn more about the 8 factors of workplace engagement here


  • Gym

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

  • Health Insurance
    Health Insurance

    Companies offering private health insurance for all employees

  • Development

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

  • Family Friendly
    Family Friendly

    School hours contracts offered to all staff

Company Statistics

  • UK sites:


  • Staff:


  • Staff Turnover:


  • Average Age:


  • Earning £35,000+:


  • Male : Female:

    63% / 37%


Want to get on the list or be accredited?

Start your engagement journey today and find out what you need to do to earn a Best Companies accreditation or a place on the Best Companies lists.