Skip to main content

Dr Hayley Lewis

  • Overview



    Hayley is an award winning registered occupational psychologist, with 25 years’ experience in the field. She specialises in leadership and management behaviour and how this impacts the culture and performance of teams and organisations. Her doctoral research focused on the psychological factors that enable female entrepreneurs to succeed in the start-up phase of establishing a first business.

    Together, Hayley and Clare Mulligan-Foster manage the first part of the innovative Professional Doctorate in Occupational Psychology. Part one is the MRes in Professional Practice in Occupational Psychology which is designed to engage practitioners in evidence-based practice and supervised practice-led research across the field. Both parts of the professional doctorate are dual accredited by both the British Psychological Society (BPS) and the Health and Care Professions Council (HCPC) and represent the first alternative routes to chartership and registration within the occupational psychology profession.

    Hayley and Clare also each run their own consultancies. Hayley’s consultancy work sees her supporting organisations with all aspects of leadership and management development, along with culture change and performance improvement. She has become well-known for her use of social media to communicate and educate around all things to do with occupational psychology.


    Office hours

    Hayley works part-time in a job-share arrangement with Dr Clare Mulligan-Foster. Please use the address for all BBK related matters and either Hayley or Clare will respond. 


    • Professional Doctorate in Occupational Psychology, University of London, 2021

    Web profiles

    Administrative responsibilities

    • Admissions for MRes, Professional Practice (Part 1 of Professional Doctorate in Occupational Psychology)

    Visiting posts

    Professional memberships

    • - Full Chartered member (Occupational) of the British Psychological Society

      - Associate Fellow, British Psychological Society

      - Registered Practitioner Psychologist (Occupational) with the Health and Care Professions Council (Licence no. PYL16129)

      - Certified Principal Business Psychology with the Association of Business Psychology

      - Fellow of the Royal Society of Arts, Manufacturing and Commerce (RSA)

    Honours and awards

    • HR Most Influential Thinker (no.13), HR Magazine, February 2022
    • HR Most Influential Thinker (no.21), HR Magazine, February 2021
    • Public Figure of the Year (no.8), Digital Leaders 100, February 2015
    • Practitioner of the Year (Organisational Change), Division of Occupational Psychology. BPS, February 2009
    • HR Transformation Award, PPMA, February 2009
  • Research


    Research interests

    • Leadership and management behaviour
    • Organisational culture
    • Team performance
    • Female entrepreneurship
  • Supervision and teaching

    Supervision and teaching


    Hayley and Clare are professional practice supervisors for Part 1 of the Professional Doctorate. Part 1 is the MRes Professional Practice in Occupational Psychology. As professional practice supervisors, we support trainee psychologists in developing their evidence-based practice, working towards registered status with the HCPC and chartered status with the BPS.


    Clare Mulligan-Foster and I teach across the MRes in Professional Practice in Occupational Psycholog. We also deliver lectures on evidence-based practice, and ad-hoc lectures related to our research interests on the MSc Organisational Psychology.

  • Business and community

    Business and community


    I am happy to receive enquiries from the media on the following topics:

    • Leadership and management
    • Conflict at work
    • Female entrepreneurship
    • Resilience
    • Wellbeing at work
    • Psychological safety at work
    • Hybrid working


      Hayley is a frequent contributor to media, both on radio (BBC) and in press (recent include HR Magazine). She has also become sought after for podcasts focused on all things to do with the world of work.


      • External directorships

        Hayley is the Managing Director of HALO Psychology

      • Consultancies and expert advice

        In her work at HALO Psychology, Hayley provides consultancy and expert advice to a range of clients in the public, private and third sector.  Her work is a mix of executive coaching, business coaching, designing and delivering leadership and management development interventions, and supporting organisations with strategy development and culture change.