Eden McCallum

Consulting that works for you

Orion House (6th Floor), 5 Upper St Martin’s Lane, London, WC2H 9EA

Strategy Transformation Business Architecture

When we founded the firm in 2000, we sought to take the best of traditional strategy consulting and freelancing to create a new consulting model

Glass Door
Team Size 75 - 100
Established 2000

When we founded the firm in 2000, we sought to take the best of traditional strategy consulting and freelancing to create a new consulting model

Eden McCallum is redefining management consulting. We support clients to resolve their most pressing issues of strategy, operations and organisation. Working with a group of independent consultants of the highest calibre, we have pioneered an approach that delivers tangible impact, client ownership, and great value.

From traditional consulting, we took the calibre, professionalism, and intellectual rigour of the world’s top firms – and left behind the distractions of internal politics and the pressure to sell more work.

From freelance consulting, we took the benefits of years of experience in consulting and industry, commercial pragmatism, collaboration and flexibility – and left behind the unstructured and inconsistent world of conventional freelancing.

Eden McCallum’s pure consulting model frees everyone – consultants and clients – to focus on what really matters: delivering lasting impact.

What makes us unique is that all of our assignments are delivered by independent consultants. They are a group of outstanding individuals with whom we regularly work.

Our projects deliver great results across strategy, operations, transformation, and organisation. We have long-standing and close relationships with our clients, and they choose to work with us again and again.

Our 1500+ independent consultants are experienced, with backgrounds at the leading global consulting firms as well as track records in industry. Extraordinarily committed because they opt in to every project, our consultants focus on delivery, released from the internal demands of a traditional consulting business. Our in-house team scopes and oversees all of our projects: we listen and respond, providing constructive challenge, unrestricted to one methodology. Our structure enables us to shape teams with only the most relevant experience and fit. And, supported by our low cost base, we focus on delivering great value.

We are making consulting better for clients and for consultants.


From the beginning we designed Eden McCallum to be different. We work with independent consultants and have taken out the extraneous costs of a conventional firm in order to focus on delivering great projects. What does this mean for you as a client?

  • We start with the assumption that you know your business best, so we listen and respond to your needs.
  • We recognise that there are lots of ways to solve a problem, so work with you to design projects that reflect the way you want to approach it.
  • Our consultants are all independent, so we can choose to work with only the best – and select those who will work well with you.
  • Our consultants combine intellectual rigour with real-world experience, so you have answers grounded in reality.
  • Our consultants give you total commitment and objective challenge because their careers depend on doing great work, rather than selling the next project.
  • We have stripped down the overheads, so you are only paying for great people delivering outstanding results.

Founders & Leaders

Nick Brown Photo

Nick Brown

Managing Partner

Nick studied mathematics at Cambridge and began his career at Coopers & Lybrand (now PWC) in London, where he became a Chartered Accountant. After two years in New York he returned to London and joined McKinsey, serving clients primarily in financial services. As a Partner he moved back to the US to help develop McKinsey’s office in New Jersey. Since leaving McKinsey, Nick has built a strong track record in applying his financial, strategic and operational skills to help companies grow, including startups, businesses in transition, and established firms. He worked for most of this time in New York in asset management.

Liann Eden Photo

Liann Eden

Founding Partner

Liann was raised in upstate New York, but most of her career has been in Europe. Before founding Eden McCallum in 2000 with Dena, she was a consultant in McKinsey’s London office, worked for Unilever in European brand management, and in business to business marketing for OSRAM, the Siemens lighting business, based in Munich. Liann holds an MBA from INSEAD and BA from Smith College. Liann’s client work spans retail, travel and leisure, consumer goods and B2B services. She tries to hide the fact that she retains an unnatural level of interest in light bulbs and washing powder, but not that it was always her ambition to start a business.

Dena McCallum Photo

Dena McCallum

Founding Partner

Dena grew up in Toronto and joined McKinsey there following her MBA; she transferred to Frankfurt, then London, where she served clients in retail and financial services and co-led McKinsey’s global CRM practice. Dena joined Condé Nast International as Director of Strategy and Planning. She and Liann founded Eden McCallum in 2000. Dena works closely with clients in the retail, financial services, media and business to business services sectors. She holds an MBA from INSEAD, an MPA from the Woodrow Wilson School at Princeton, and a BA from the University of Toronto. Dena is an avid Boris Biker.

Buzz Bury Photo

Buzz Bury

Senior Manager

Buzz joined Eden McCallum in 2014 and is responsible for building our talent pool of consultants and shaping great teams. Before she joined Eden McCallum, Buzz spent 10 years at McKinsey, initially as a business analyst before returning after an MBA at Columbia Business School and time at NTL Interactive. Her work focused on strategy and performance transformation across a range of industries, predominantly healthcare, public sector and latterly in agriculture. Buzz has also worked for Technoserve in Kenya, Wildlife Conservation Society in New York and most recently as a strategy advisor to Farm Africa.

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