Business and Charity Consultant that helps good people win.

You know something needs to change. We help you work out what, then help you do it, with you, not at you.

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Google reviews, five stars
Bloom accredited supplier
Social Value UK organisational member
UK Register of Learning Providers (UKRLP) registered
★★★★★
4.9 on Google, from 72 five-star reviews
What the work feels like from the other side
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Free Consultations Given Since 2019

23- 0 %

Growth Achieved by Underpin Clients in 2025

£ 0 m

Contracts Secured by Clients since 2019

Trying to change the world is hard work. Whether you’re running a business, leading a charity, or managing a public service, your passion is your greatest asset.

We channel that passion, and provide the strategic clarity and practical support you need to make a real, lasting impact. We’re not about jargon or empty promises. We’re here to help you solve problems, grow sustainably, and achieve your vision.

We provide clear strategies, project management, and revenue growth support that is tailored to your unique needs.

Our goal is to transform your strategy and revenue into a powerful engine for success, enabling you to grow confidently and deliver more for the people you serve.

Ready to build a better future?

Book Your Free, No-Obligation Consultation.

  • Lewis has been an amazing source of advice and support for us at It takes a City - challenging how we think and taking us on a journey to improve... read more

    Lis Silver Avatar Lis Silver

    I've used Lewis & Underpin Consultants as speakers at my networking events. Their marketing sessions are always very well received (that's why I've used them more than once!) and attendees... read more

    James O'Rawe Avatar James O'Rawe

    Lewis is highly recommended! Working with him and his team is a pleasure. He has assisted in newsletters, flyers and a website. If you are looking for someone professional, great... read more

    Amanda Wilson Avatar Amanda Wilson
  • Lewis brought clear insights and guidance I could immediately work with. His expertise cut through the noise, and gave me a clear sense of direction to help me grow my... read more

    Luke Tyler Avatar Luke Tyler

    After just one business analysis session with Lewis, it was immediately clear how professional and insightful he is. Unlike many business coaches or consultants, Lewis brings a truly holistic, bottom-up... read more

    Kris Avatar Kris

    The advice we have received from Lewis about marketing for our startup has been inspirational. He clearly has plenty of experience and expertise in the field and is very... read more

    Rebecca Kirk Avatar Rebecca Kirk
  • We all need someone who can take an idea, truly listen, and turn it into something even better than we imagined - and that’s exactly what Lewis did for us. It... read more

    Rachel Hales Avatar Rachel Hales

    Working with Lewis from Underpin has been an absolute pleasure. From the very beginning, his expertise, professionalism, and dedication to delivering exceptional results for his clients stood out. His insights... read more

    Emma Sandham Avatar Emma Sandham

    Lewis has been (and, I hope, will continue to be) a truly valuable sounding board and source of clear, practical advice for me in my charity work. He immediately understood... read more

    Nick Shaw Avatar Nick Shaw

For Those Who Want To grow sustainably

Flexible strategy, expert support, and innovative campaigns without the traditional agency model.

We provide expert support for public sector tenders, helping you articulate your social value to win competitive contracts.

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