Sam Ellis

Senior Commercial and Operational Leader in London, United Kingdom

Sam Ellis

Senior Commercial and Operational Leader in London, United Kingdom

COO of NatureSpace Partnership, a 70-person nature recovery business, driving commercial and operational transformation, working with the Board and strategic partners including 70+ Local Planning Authorities, Network Rail, National Highways and several water companies.

Previously…

Delivering projects on a fractional basis for several start-ups, scale-ups, and SMEs

Head of Growth, Flock Mobility

Co-founder & CEO @ Karfu

Trustee @ Fitzwygram Foundation

EMBA with Distinction from Imperial College Business School (ICBS)

CMO / Chief Marketing Officer @ Mywalit

Investor (Tails, Graze & Nature Metrics) & Director @ Ellis Parker

Start-up mentor (PwC:SCALE) & Consultant @ Samueljellis

Head of Innovation @ M&C Saatchi & LIDA

Integrated Marketing for Jaguar Land Rover, Virgin Holidays and Invesco @ M&C Saatchi & LIDA

Business Development @ Crayon & HS&P (now Accenture Song)

Corporate advisory & restructuring analyst @ Kroll (now Alix Partners)

To Founders looking for investment

Neither I nor Ellis Parker currently invest in new start-ups.

About me

Father to two wonderful boys. Erratic Spurs & Harlequins fan. Passionate about winter sports. Technology obsessed. Fascinated and worried by AI. Unrefined political views.

  • Work
    • Start-ups & Scale-ups
  • Education
    • Imperial College Business School (EMBA)
    • University of Southampton (MSc & BSc)
Testimonials
As a Board Observer and investor at Karfu, worked closely with Sam throughout the company's growth. He is a strong operator: commercially rigorous, execution-focused, and decisive. Sam consistently translated strategy into action across product, GTM, fundraising and team, delivering tangible progress under tight capital constraints.
Mark Cochrane - Board Member (Karfu)
Sam brought clarity to our growth strategy at Flock. He helped with our go-to-market, ICPs, targeting framework and accompanying prospect lists, and developed sharp sales materials that hit the right tone with our audience. He’s smart, grounded, and ready to roll up his sleeves. A great asset to any team.
Terry Yoell - Founder & CEO (Flock Mobility)