Thom Johnston
Partner, Founder and CEO
Thom brings 30+ years of industry and consulting experience helping organisations, from global tech leaders to nonprofits, plan and execute complex, cross-functional transformations.
Clarity in complexity. Integrity in action.
Where progress meets purpose
We help organisations navigate complexity with clarity, integrity and a deep commitment to the people who bring strategy to life. Our work blends human-centred insight with disciplined execution, so leaders can build businesses that are not only high-performing, but built to last.
About DOAS Advisors
Leadership grounded in truth. Results grounded in action.
Five principles shape everything we do.
Humanity first
We start with people. Every system, process and profit model must ultimately serve human potential.
Integrity always
We tell the truth, even when it’s inconvenient. Trust is the foundation of every enduring relationship.
Sustainable progress
Growth matters only when it lasts. We balance performance with stewardship for people, communities and the planet.
Curiosity & collaboration
We co-create, not dictate. Respect for diverse perspectives fuels better solutions.
Purpose over profit
Profit sustains a business; purpose sustains its legacy. We help clients pursue both with clarity.
How we help
The challenges we take on with you
Together, we address the challenges that limit progress and create the conditions for human-centred, sustainable growth.
Human-centred strategy & transformation
Redesigning organisational strategy to align profit with purpose.
Workforce, culture & change
Building human-centred change management programmes that actually stick.
Customer, sales & service transformation
Reinventing sales and service operations around customer trust, not just transactions.
Operational excellence with integrity
Improving process, governance and decision-making without bureaucratic bloat.
Purpose-driven growth & innovation
Helping organisations innovate responsibly, balancing ambition with impact.
M&A, partnerships & divestitures
Supporting acquisitions and divestitures with a people-first integration approach.
Ethical & sustainable business design
Embedding ESG principles into strategy without performative greenwashing.
Governance, transparency & trust-building
Establishing integrity-centred decision frameworks for executives and boards.
Our approach
Clarity in complexity. Impact that endures.
Our work begins with a simple premise: business is human. Strategy, culture and innovation only endure when they honour the people who bring them to life.
01
Discover with curiosity
We listen deeply before we advise. Through research, workshops and dialogue, we uncover the human and structural dynamics shaping each client’s reality. Understanding context lets us see opportunity where others see complexity.
02
Design with purpose
We translate insights into actionable strategies, aligning mission, culture and operations to drive sustainable growth. Our process is collaborative, transparent and anchored in measurable impact.
03
Deliver with integrity
We stay engaged beyond the strategy deck. Implementation is where trust is tested, and we stand beside our clients to make sure decisions create value for people, planet and performance alike.
Why DOAS
Cut through complexity. Elevate what matters. Deliver what counts.
We connect purpose with performance.
We don’t treat purpose as branding; we make it a strategic lever. Our work aligns mission, culture and operations so organisations grow stronger, more efficient and more resilient.
We deliver human-centred transformation that sticks.
Most change efforts fail because they overlook people. We design transformation around human behaviour, trust and culture, so adoption, momentum and results last.
We turn complexity into clarity, and clarity into action.
Leaders come to DOAS when they’re navigating high-stakes ambiguity. We cut through noise, surface the real issues, and build practical pathways that accelerate alignment and execution.
We bring senior expertise without the bureaucracy.
Clients work directly with experienced strategists who have led major transformations, without the layers, overhead or templated solutions of traditional firms. Every engagement is tailored, transparent and grounded in measurable impact.
Client work
Real challenges. Human solutions. Lasting impact.
Global technology
Reclaiming Purpose to Unlock Performance
How DOAS Advisors helped a $30B technology company redefine efficiency, and grow.
+14%operating profit
Healthcare services
Revitalising Customer Engagement and Growth for a Fortune 500 Healthcare Company
A healthcare company with 8 million members saw engagement collapse after automating service. We rebuilt it around human connection.
82% → 91%member retention
Financial technology
Scaling an AI-Driven FinTech Through Operational Discipline
A Series B FinTech had tripled headcount in 18 months. We built the operating discipline to make it investor-ready.
+54%annual recurring revenue
Leadership
The people behind the work
Valerie Johnston
Partner, Chief Architect
Valerie is a global business and technology strategist with nearly 30 years leading complex transformations across Fortune Global 2000 and Fortune 500 organisations.