We measure the biology behind how leaders perform
Capacity is the real constraint.
Senior roles rarely break on strategy. They break on capacity, and usually somebody at home notices first. We measure what the role takes out of you, in your blood, your sleep and your nervous system, then build what sits underneath.
Thirty minutes with Rachel. No slides, no preparation.
Founder-led · Measured in biology, not guessed · Five advisory seats a year
The capacity wheel
Capacity isn’t a trait. It’s a wheel, and the spin is the thing.
Your biology shapes your leadership. Your leadership drives your behaviour. Your behaviour builds your environment, and your environment feeds straight back into your biology. Turned one way the wheel builds you. Turned the other, it empties you, faster the harder you push. Two of the four you cannot grab hold of. Biology and leadership are outcomes. Behaviour and environment are the handles, and that is where the work goes.
Where to start
One method. One path, lightest to deepest.
Everything we do measures and builds the same thing. Most people start with the Executive Capacity Audit. Here’s the full path, from a free three-minute read to a full year together.
The Capacity Wheel
A three-minute read on which of the four factors is driving your spin right now. The free front door to everything below.
Metabolic Audit
A continuous glucose monitor, your own wearable and a focused questionnaire, read by a practitioner. The measured first step, without the full diagnostic commitment.
Executive Capacity Audit
Ten weeks. Genetics, bloods, glucose and your own wearable, read personally by both founders and written up as a blueprint of your three quickest wins. Where most people start.
The Private Advisory
The flagship. Twelve months with both of us, built from your full diagnostic picture and recalibrated as your year unfolds. Five seats, once a year.
ExecOS runs across the paid engagements, from the Metabolic Audit up through the Executive Capacity Audit, with its most powerful options reserved for Private Advisory. It reads all four factors of the wheel and turns them into one clear directive each morning. We also run event consultancy for offsites and board days, and Rachel is writing Beacon, the thinking behind all of it.
“Insightful, energising and a must-do for anyone investing in their long-term health.”
How we work
We don’t guess. We measure.
Not a clinic, and not coaching on its own. A clinic waits until something is already wrong. Coaching works from what you can already see about yourself. We do the advisory and the coaching, with your own measurements underneath both. We measure capacity through biology, then build it through behaviour and environment.
Every engagement starts with data. Genetics, blood chemistry, glucose dynamics, sleep and recovery from your own wearable. Rachel reads it through biology, Luke through performance, and together they turn it into a plan you can actually run inside a heavy role.
Nothing is templated and nothing is delegated. Five advisory seats a year means both of us are across every data point, every readout and every recalibration. That access is the point.
See the results →“Luke and Rachel bring science and structure to performance. They are the catalyst for change most leaders don’t know they’ve been looking for.”
Who you work with
Two scientists, two lenses.
Every programme is built by both founders. Two scientists on the same problem, Rachel through biology, Luke through performance. Your programme never leaves their hands.
Rachel Taylor
Chief Executive Officer · Co-founderGeneticist and biochemist, with a career in multinational C-suite governance and a past life as a national-level gymnast. Rachel builds the scientific architecture behind every programme, and is writing Beacon, a book about what actually decides whether leaders last.
Luke Taylor
Chief Performance Officer · Co-founderFifteen years inside the performance biology of founders and executives. Luke built a specialist performance clinic of fifteen practitioners, scaled it and exited. A former national-level triathlete, he runs the diagnostics and builds the programmes.
Next step
Start with a conversation.
Thirty minutes with Rachel. You’ll leave with a clear read on whether this is for you, and where to start.