Celeste Gardner

Human Performance Strategist · Speaker · Coach

Performance is only sustainable when people are.

Celeste helps high-stakes organisations turn wellbeing into a measurable performance advantage, building the systems that protect capacity and lift output at global scale.

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About Celeste

Celeste helps leaders perform at their best, sustainably.

For six years she’s worked with senior teams in some of the most demanding environments in business, in private equity, banking, and high-growth companies, helping them stay sharp, energised, and effective under real pressure.

Her background sits across performance science, mental health, and elite sport, and she holds an MSc in the Science of Mental Health and Human Performance. Everything she does runs on one belief: people perform at their best when they are genuinely well, and that is a system you can build, measure, and sustain.

Wellbeing and performance are not a trade-off.

The two are mutually reinforcing. Protect a leader’s capacity and you sharpen their judgement, their decisions, and their output, as the engine of performance rather than a cost against it.

Most organisational wellbeing work fails because it sits to one side of the business. It stays a programme rather than an operating principle, measured in attendance rather than impact. Celeste’s work refuses that split. It treats sustainable capacity as a performance lever, holds to the rigour of elite sport, and speaks the language of the boardroom.

200+ leaders coached · 6+ years of science-led practice · 25% sharper focus and clarity in a quarter · 18% reduction in absence rates

How Organisations Work With Celeste

Celeste guides organisations through a structured, evidence-led journey using the ECCG Method™, Energy, Clarity, Connection, Growth. Each partnership follows a clear pathway that creates rapid insight, measurable ROI, and long-term behavioural change. Every engagement begins with The ECCG Blueprint™ Assessment, the diagnostic that turns performance into something you can measure, track, and improve.

There are three ways to work together:

The Performance Code Keynote:

Celeste’s signature talk. It reframes high performance as a question of capacity, not motivation, and introduces the ECCG Method to build shared language across a team or audience. Best for leadership offsites, conferences, all-staff resets.

The Flagship Performance Sprint:

A structured cohort programme combining diagnostic, intensive workshop, and 1:1 coaching, embedded into how teams actually operate. Best for senior teams and leadership cohorts.

1-1 Executive Coaching:

Intensive individual coaching for senior leaders and C-suite, the deep, personal work on capacity, clarity, and sustained performance under pressure. Best for founders, executives, senior leaders.

  • Working with Celeste was like having a coffee with a friend who understands where you're coming from, without being in the same line of work. She held up a mirror without ever making it feel like therapy, naming things about how I lead that I hadn't seen myself. She's practical, gives you frameworks you can actually implement, and keeps you accountable without it ever feeling like an interrogation.
    Helét Hathorn, Tax Director, Coller Capital

Contact me

Schedule a Discovery Call or find me on LinkedIn

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