Cut risk. Build cultures that perform under pressure.

Stop leaving high performance to chance! Let’s build cultures and leaders who make clear decisions under pressure without sacrificing trust, energy or inclusion. 

We help you say NO to burnout, blame and ‘busy nonsense’ right now!

Explore our services

We have worked with senior leaders, teams and organisations across corporate, creative industries, FMCG, real estate and social impact sectors where the human cost of performance matters.

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What We Do

What organisations and leaders call us in to fix.

We are a boutique consultancy that breaks down outdated workplace norms and helps you strengthen your culture, so leaders & teams can excel through high performance, confident action and genuine collaboration.

  • 75% of managers feel overwhelmed by growing responsibilities

  • Only 36% of HR leaders believe their programmes adequately prepare leaders for future challenges

  • Organisations with highly engaged employees see 21% greater profitability compared to those with low engagement

    (Data source: Gartner)

The data does not lie:

Yet, do not fear! The gaps can be bridged by creating cultures where people feel seen, valued and empowered to innovate, share ideas and perform at their best.

We do this everyday and can guide you to achieve better engagement, which we know = better results.

Discover how we do it →

Your journey starts here!

Our Services

Culture

Reduce friction, clarify accountabilities and build operationally effective cultures for better execution.

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Coaching

For leaders & founders, who need to make high-stakes decisions with confidence and clarity.

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Speaking

Insight-led, actionable and practical sessions that reset teams’ focus + challenge assumptions.

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Learning

Equip teams with strategic skills that reduce performance risk and accelerate outcomes.

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Why High Fifteen? 

Our Difference


We are ‘outstanding’, ‘inspirational’, ‘amazing’, ‘instrumental’, ‘incredible’ etc. Our clients’ words, not ours. Yet, we agree ☺️.

We help organisations strengthen leadership behaviour, emotional maturity and ways of working so everyone can execute with clarity, confidence and consistency.

Our working principles are clear:

▪️ We are direct, warm and grounded

▪️ We focus on what actually changes behaviour

▪️ We balance emotional intelligence with commercial reality

▪️ We design work that leaders can apply immediately

We want you to feel:


✅ Empowered

✅ Assertive

✅ Inspired

✅ Challenged

We support our clients by:

  • Every partnership is built on deep listening, positive psychology-driven insights and a flexible approach that meets you where you are and takes you where you want to go.

  • We have worked with world-renowned brands, yet we approach every client relationship with the care and commitment they deserve to succeed.

  • High performance isn’t just about results: it’s about accountability and sustainability. We design strategies that don’t just work today but keep your teams thriving tomorrow.

  • Whether you are a micro business, a scaling business, a charity or a global organisation, we deliver tailored solutions that maintain integrity, engagement and long-term cultural impact.

+90%

of leaders report increased confidence and clarity in their role following working with us.

of participants rate our sessions’ insights as immediately applicable to their day-to-day work.

+8 in 10

+85%

of clients say we have enabled more open and constructive conversations within their teams.

Read more about us →

Data based on post-engagement feedback across coaching, workshops and leadership programmes.

Client Stories

Our work has inspired over 30,000 employees and senior leaders globally so far.

Levi Strauss and Co logo in black

Vanessa was invited to speak at Levi’s HQ in Belgium. She delivered a powerful keynote on career progression, networking and growth mindset to 120 senior women - earning a standing ovation and many fantastic feedback comments.

This led to an invitation to run a series of 3-hour workshops and serve as the host for their gender equity summit, 2 years in a row, shaping important and empowering conversations around gender equity and driving meaningful change.

Read more here

 

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Partnering with Sony Music, we supported the cultural development of multiple teams through workshop facilitation and coaching.

One team embarked on a full cultural transformation programme with us, progressing from ‘storming’ to ‘performing’ in just eight months. Using a blend of coaching and facilitation tools, we guided 15 highly skilled and passionate individuals to thrive while creating a compassionate team environment - unlocking their full potential as a high-performing team.

Read more here

Black and white minimalist logo for Gymshark featuring a line drawing of a shark head

For two years, we partnered with Gymshark to support their mission of fostering a community where everyone truly feels they belong. We supported the business with inclusive high performance training, consultancy to the HR team with the review of their employee life cycle, hosted cultural events and supported the brand team with some of their campaigns. The Chief Brand Officer described our role as a ‘guiding light’ in ensuring Gymshark showed up for its people in the right way, at the right time.

Read more here

See more clients' stories →

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