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Business development training

Move from technical practitioner to trusted advisor

Practical training for professionals who want stronger client relationships, more referrals and a reliable flow of work — without becoming someone they're not.

Three ways to work with me

Choose the format that fits you: self-paced learning, a live workshop, or a multi-month programme for your firm.

On-demand Course

Work through the Trusted Advisor OS at your own pace. Build the habits, language and confidence that turn technical expertise into trusted relationships.

In-person Workshops

Book me for talks, workshops and away-days that give your people practical skills they can use immediately.

Structured Programmes

A multi-month business development programme for firms that want lasting change, not a one-off event.

Robert Cooper, founder of Trusted Advisor OS

Who's behind this?

Hi, I'm Robert Cooper. An ex-corporate financier, with over two decades of experience, I've raised eight-figure venture capital, built and led businesses, and operated at c-suite level in a private equity-backed tech company. I've sourced and delivered £millions in fee income - from high-growth startups to £bn listed entities.

Recognising the need for those in professional services to build their networks and win clients but seeing a lack of suitable market offerings, I went about developing a solution. After three years of refining and reverse-engineering my own proven strategies, I created the Trusted Advisor Operating System.

Organisations I have worked with

Ward Hadaway logoHay & Kilner logoICAEW - Institute of Chartered Accountants in England and Wales logoMercia logoPricewaterhouseCoopers logoUNW logo

Stronger relationships. More referrals. Better work.

The Trusted Advisor OS is built around the practical behaviours that create trust before a transaction is ever discussed. That trust becomes the source of introductions, repeat work and long-term clients.

  • 1A clear plan for becoming visible and valuable to the right people
  • 2Simple systems for networking, referrals and nurturing relationships
  • 3Confidence in starting conversations without sounding salesy
The best business developers don't chase transactions. They build trust, and the work follows.

What the professional community says about me

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What the business community says about me

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Ready to become a trusted advisor?

Start with the online course, or get in touch to discuss a talk, workshop or programme for your firm.