About Millar Cameron
Finding the people who shape the future
Built on a belief in people, a commitment to partnership, and the resilience to operate in complex environments, we help organisations identify leaders who deliver lasting impact
Our story
Millar Cameron's journey began in 2007, shaped by a deep commitment to people and the belief that leadership can transform organisations and communities.
Founded by Conor O'Callaghan, the firm began it's work across African markets with a focus on understanding not just roles, but the environments, motivations, and cultures in which leaders operate.
From the outset, we learned that effective recruitment requires more than matching skills, it requires insight, curiosity, and a disciplined approach. These early foundations guide us today. Over time, we have built trusted partnerships and developed a deep understanding of talent landscapes across complex and emerging markets.
As our clients' needs have evolved, so has our reach. We have expanded across sectors and geographies, strengthening our capability in senior leadership and executive search for organisations operating on a global stage.
Through every stage of our growth, one belief has remained constant, when leadership is chosen with care, insight, and integrity, it has the power to shape the future.
I am proud of what we continue to achieve at Millar Cameron. Every successful appointment creates value not only for our clients but also for the people, businesses and communities they serve. Knowing that our work contributes to both organisational success and broader societal progress is what makes it so rewarding.
Our values - we care
The way we work reflects what we believe about leadership. The decisions we support matter, and our values guide how we partner with clients and candidates, bringing care, judgement, and accountability to every search.
Collaboration
We work in partnership, with clients, candidates, and each other. Combining insight and experience to achieve better outcomes together.
Accountability
We take responsibility for the advice we give and the work we deliver, building trusted partnerships based on consistency and follow-through.
Respect
We treat every individual and organisation with fairness and consideration, recognising the importance of every decision we help shape.
Excellence
We bring rigour, curiosity, and persistence to every search, continually striving to improve the quality of our work and the outcomes we deliver.
These values shape how we work everyday, guiding the way we support clients, engage with candidates and deliver lasting outcomes.
Global reach
Our work reflects the environments we operate in. From our origins in Africa to a broader international presence, we support organisations and leaders across diverse and complex markets.
1700+
placements
136
nationalities
94
countries
41
African countries
Meet the leadership team
Tom Jeffes
Senior Partner
- tom.jeffes@millarcameron.com
- Phone
- +44 2038 000 304
- Tom Jeffes
Tom is a Senior Partner at Millar Cameron, leading international executive search mandates across the food and agriculture, natural resources, climate, development finance and impact investing sectors. He works globally with multinational corporations, private equity firms, development finance institutions, family-owned businesses and industrial companies to appoint senior executives and board members.
He has over a decade of experience in executive search and leadership recruitment, advising clients on retained search assignments, board appointments, succession planning and confidential strategic hires. His work is focused at Executive Committee and Board level, with particular experience in CEO, Managing Director, CFO, COO and investment leadership appointments, as well as board and non-executive roles.T
om has completed searches across more than 40 countries and has particularly deep networks in Europe, Asia and Africa, alongside significant experience across North and South America. His work spans both growth-oriented and established organisations operating in complex international markets. He holds a degree in History from the University of Reading.
"I feel truly privileged to play a role where I can have a real and positive impact partnering with clients to find solutions to their critical leadership problems."
Marta Koczorowska
Senior Partner
- marta@millarcameron.com
- Phone
- +44 2038 000 218
- Marta Koczorowska
Marta has been working within Executive Search and recruitment for over a decade, culminating in leading the European Executive Search function of a multinational talent brand. She has partnered numerous organisations to resolve strategic resource planning issues and discovering, engaging and hiring critical talent across the EMEA region. Marta is an advocate of change and focuses her attention to ensure a culture of continuous improvement pervades across her team. She is passionate about learning, advocating for, and sharing best practices on recruitment's role in advancing diversity, inclusion, and equity.Privately, she is interested in social science, culture and design. Marta holds a BA in Cultural Studies from the University of Warsaw.
"I believe recruitment positively impacts both individuals and the wider society. At Millar Cameron, I co-create a successful and purposeful organisation that ensures we contribute to this. Thanks to the passion, commitment and professionalism of our team, we continue to make a positive difference."
Conor O'Callaghan
Managing Partner and Founder
- conor@millarcameron.com
- Phone
- +44 1865 657060
- Conor O'Callaghan
Conor O’Callaghan is the Managing Partner and founder of Millar Cameron. He has specialised in recruiting executive and senior level professionals into emerging markets for over 22 years, focusing for the last 12 years on Africa leadership recruitment.His diverse experience includes C level and Director level appointments in private equity, agriculture, consumer, forestry, international development and technology. He holds a BA in Spanish and Latin American Studies from the University of Portsmouth and University of Mariano Galvez, Guatemala. Conor is a Trustee of The Merchant Taylors' Oxfordshire Academy Trust and sits on the Walter Bigg Foundation, a body that supports youth in his local community. He is a strong advocate in offender rehabilitation and has spent the last 15 years providing guidance at many prisons.
"I feel an enormous sense of pride and gratitude when I look back on the impact of the people who have been placed by Millar Cameron since its inception and working with a team who are passionate about positively contributing to the development of Africa."
Rachael Richardson
Partner, Operations
- rachael.richardson@millarcameron.com
- Phone
- +44 1865 657 064
- Rachael Richardson
Rachael joined Millar Cameron in 2013 and manages the company's finance, human resources and administration. She is also a member of Millar Cameron’s leadership team. She has a background in accounting and audit across multiple sectors including agriculture, charity, education and financial services. Rachael began her career in recruitment introducing environmental and sustainability experts. She holds a BEng in Environmental Engineering from the University of Southampton.
"Working with and supporting a close-knit team who are passionate about providing exceptional service to their clients and candidates and knowing we have a real and positive impact is incredibly rewarding."
Shaping leadership with insight, integrity, and care
If you'd like to learn more about how we work or discuss your leadership needs, we would be delighted to talk to you.