Planning process for engaging stakeholders
Engaging stakeholders in strategic planning


Celtar Advisers, led by principal consultant Billy Linehan, is a consultancy firm based in Dublin, Ireland. With over 20 years of experience, Celtar Advisers specialises in providing strategic guidance to businesses, charities, and voluntary organisations. The firm is dedicated to helping clients navigate the complexities of strategic planning, organisational reviews, and business growth, ensuring they achieve their long-term goals.

Services of Celtar Advisers

  1. Strategic Planning and Implementation
    • Comprehensive strategic reviews
    • Tailored strategy development
    • Business planning and execution
    • Performance evaluations and improvements
  2. Business Mentoring and Coaching
    • Mentoring for business owners and start-ups
    • Leadership coaching for senior executives
    • Industry and subject matter expertise
  3. Community and Non-Profit Support
    • Strategic guidance for community projects
    • Organisational reviews for non-profits
    • Mentoring leaders of voluntary organizations
  4. Event Organisation and Facilitation
    • Co-founder and organizer of StartUp Ballymun
    • Facilitator for enterprise support initiatives
  5. Digital Marketing Amplification
    • Utilizing Twitter, Facebook, LinkedIn, and blogs to promote services and events. Successful campaigns include StartUp Ballymun, Climate action training for Global Action Plan Ireland, SFA Skillnet training for the Small Firms Association, and Open Source Ventilator promotion during the pandemic (#OSVentilator)

Recent Projects

  • Cultural and Creativity Mapping Study: Conducted for Strawberry Beds RA, funded by Fingal Council/Creative Ireland,
  • Community Project Mentorship: Guided leaders of various community projects, fostering sustainable development and community engagement.
  • Neighbourhood Centre Business Plan: Developed a comprehensive business plan for a local neighbourhood centre, ensuring long-term viability.
  • City Farm Business Plan Evaluation: Evaluated the business plan for an urban farming initiative, offering strategic advice for growth and sustainability.
  • Business Strategy and Planning: Advised numerous business owners on strategic planning and implementation, helping them achieve operational excellence.
  • StartUp Ballymun presents ‘Rise Up; Innovation Unleashed’ – project management of annual start-up event in Ballymun, Dublin

Commitment to Excellence

Celtar Advisers is committed to delivering high-quality consultancy services that drive growth, efficiency, and success. Billy Linehan’s approach is collaborative, leveraging deep industry knowledge and client insights to create innovative solutions tailored to each client’s unique challenges and opportunities. The firm’s dedication to continuous professional development ensures that clients receive up-to-date and relevant advice.

Client Testimonials for Celtar Advisers

Clients consistently commend Celtar Advisers for their strategic mindset, business acumen, and dedication to fostering long-term success. Billy Linehan is recognized for his active listening, ethical integrity, and ability to build strong personal connections with clients, making him a trusted advisor and mentor.

And a little about Billy Linehan

Billy Linehan is a highly experienced professional with extensive expertise in providing strategic guidance to the leaders of businesses, charities, and voluntary organisations. With a career spanning the UK and Ireland, he has successfully assisted leaders in navigating the complexities of strategic planning and organisational reviews. His foundational qualifications include a Certified Management Consultant CMC accreditation, a Postgraduate Diploma in Marketing, and an Honours BA in History and Politics.

Billy’s community involvement as a member of his local Tidy Towns, Bat Conservation Ireland and other interests, underscores his dedication to social impact and heritage conservation. Additionally, he supports start-up ecosystems in Dublin, serving as a judge at several start-up events and hackathons, and is a regular contributor to Irish Tech News. His role as a Dublin Rural LEADER evaluation committee member for seven years further highlights his commitment to fostering community development. Partnering with Billy ensures access to innovative strategies and a clear roadmap for achieving organisational growth and effective strategy implementation.

Contact Information

Celtar Advisers is open to exploring new opportunities and projects. For collaboration inquiries or to learn more about our services, please get in touch.