
Our Story
After building and selling his own consultancy, Marc Jantzen started advising other consultancy leaders on how to grow stronger, more valuable businesses. He’d learned a huge amount the hard way and believed other consultancy leaders should be able to benefit from those lessons, grow faster, make more informed decisions and enjoy the journey more. He also recognised that his experience reflected a single journey.
So, in 2019, he founded The Consultancy Growth Network: a community built to give consultancy leaders access to the advice, experience, data and practical support they need to grow with confidence, underpinned by a panel of Growth Experts. Along with Ali El Moghraby, Dom Moorhouse, Peter Czapp and George Berrington, Marc established The Consultancy Growth Network as the place for ambitious consultancy leaders to have their challenges, needs and opportunities truly understood.
The basis of the Network is simple. We’re all works in progress. No matter how successful a consultancy leader and their firm becomes, there’s always more to learn, improve and build upon.
That belief shapes everything we do today. What started as a way to share hard-won lessons has become a much broader support system for over 350 boutique consultancy leaders: a network of experienced founders, Growth Experts, specialist partners and peers who understand the realities of growing a consulting business.
Together, we give members a place where their challenges are properly understood, their performance can be benchmarked against firms like theirs, and the advice they receive is grounded in real experience. Through Consultancy BenchPress, the Consultancy Maturity Roadmap, Growth Hub, Capability sprints, expert-led events and practical member support, we help leaders make better decisions and build more valuable businesses.
Whether you’re building a forever business or preparing for a future exit, our purpose is to help you grow a successful consulting business.
Network timeline
From a single idea to a thriving community. Explore the key milestones that have shaped the Network.
June 2015
Marc exits his consultancy for £10m+

May 2019
Marc and Ali meet and agree the vision for TCGN

October 2019
TCGN is incorporated and a heavyweight board appointed – Dom Moorhouse and Peter Czapp

November 2019
George joins the team, and we host 3 launch events

January 2020
TCGN goes live with a whopping 6 members!

February 2020
First in-person event, a huge success

March 2020
COVID19 lockdown and proposition pivots to online

October 2020
First Consultancy BenchPress report published

January 2021
Growth Hub (exclusive member area) launched

June 2021
The Network reaches 100 members

July 2022
The Network reaches 200 members

October 2022
First Annual Consultancy Summit

June 2023
The Consultancy Training Academy launched

September 2023
The Network reaches 300 members

August 2024
Consultancy Maturity Roadmap introduced with 11 Maturity Assessments

February 2025
Consultancy BenchPress passes 1,000 participants

June 2025
Capability sprints introduced

February 2026
Growth Hub v.3 and AI Board Advisor launched

June 2026
Deal Finder platform launched

Our journey
continues…

Compare your key performance metrics with your highest-performing peers
Specialist providers
Specialist providers are niche consulting industry advisors who answer questions on the online forum, attend conferences and share insights through webinars / talks.
It was immediately clear that Caroline [from New Minds] understood our challenges and what we needed. She had an extremely structured way of identifying the kind of individual we were looking for and how to go about getting them. I’ve been very impressed.
Al Catto, member and founder of Beyond
The Consultancy Growth Network Team

Bianca Misajon
Bianca is our Partnership Manager. With nearly a decade of experience in business development and sales in the business process outsourcing industry, she developed a sharp understanding of client needs and how to turn them into meaningful action. She now brings that to The Consultancy Growth Network, helping consultancy leaders find real value in the community, whether that’s navigating the day-to-day challenges of running their business, connecting with the right peers and expert advisors, or achieving their growth ambitions.

Luke Badiali
Luke is our Sales Director. He collaborates closely with consulting owners both within and outside our community who are keen to connect with the network. His 10+ years’ experience in partnerships and sales means he brings lots of ideas to help us attract and retain members and partners. If you have any questions about joining the network as a member, or are looking for further information about getting involved as a strategic partner, please reach out to Luke.

Marc Jantzen
Marc is the founder of The Consultancy Growth Network. He has a background in leading performance improvement programmes with some of the world’s leading brands, including Virgin, O2 and Barclays. Marc is a business growth specialist who previously built and sold his own consultancy business and now mentors consultancy business owners, enabling them to achieve their growth objectives.
Marc’s underlying belief is that we are all work in progress and no matter how successful you are there is always so much more to learn.

Oli Hoade
Oli is our Account Manager. Coming from a background in financial services, he has a good understanding of the transactional process, as well as experience of working with clients across a wide range of specialisms and sectors. He loves learning about new and exciting businesses, and will be working to onboard new members to the network, as well as managing member relationships.

Peter Czapp
Having spent 7 years building The Agency Collective, Peter brings a wealth of knowledge and experience to The Consultancy Growth Network team on how to grow a vibrant community that delivers huge value to its members. As well as helping us run our consultancy benchmark survey, Consultancy BenchPress, Peter shares insight and best practice on the subjects of cash flow, profitability, and sustainable growth via his accountancy firm, The Wow Company.

Dorota Rubazewicz
Dorota supports consultancy leaders on their journey through the Network, helping them tap into the right opportunities, connections and resources to accelerate growth. With a strong background in stakeholder management and client engagement, she brings a relationship-first approach to member success. Dorota has built communities and nurtured executive networks across consulting, flexible workspace and expert insight industries- always with a focus on delivering outcomes, not just conversations.

James Hurman
James is our Digital Marketing Manager. He has previously worked in marketing for an industry leading online retailer and the world’s largest events company. He enjoys bringing creativity and strategy to marketing campaigns, to convey the unique value of The Consultancy Growth Network. He is also committed to optimising the member experience, whether they’re browsing the website or attending an event.

Ali El Moghraby
Ali is Head of Marketing. She has 16 years’ strategic marketing experience in professional services, including at a Big Four accounting firm, a £200m global consulting business and a young and rapidly growing digital and business transformation consultancy.
Ali believes that critical to the success of professional services businesses is thoughtful, directional and relevant communication.

Dom Moorhouse
Having codified his learning from growing a successful consulting business, Dom is a major contributor to the network’s content strategy. He also helps us design and deliver the insights the network shares with our members and the broader independent consultancy community, playing active roles in our events as well as on our WhatsApp group. Dom also brings a wealth of coaching, mentoring and NED experience to the network and its members.
The Consultancy Growth Network Values
Our values are expected of our members and ourselves.
Abundance Mentality
There is plenty of work to go around. This means our members openly share experiences and ideas.
Collective Ambition
We challenge each other with curiosity and compassion. We are proactive in our endeavours to create opportunity for all members through partnerships and other means.
Mutual Trust
The community thrives because members feel safe and fellow members have their best interests at heart.





