Growth Hacking in the UK
Growth hacking is growth through disciplined experimentation: hypotheses, fast tests and data — not opinions. PROTON Growth brings this method to premium businesses across the United Kingdom, with the rigour and reliability of two decades growing global brands.
What is growth hacking?
If the question that brought you here was “how do I grow my business?”, the honest answer is: not with more advertising, nor with more luck — with method. That method is exactly what growth hacking offers.
Growth hacking is a growth discipline that replaces one-off campaigns with rapid experimentation cycles: identify the biggest bottleneck in the funnel, form hypotheses, test with minimal spend, measure — and scale only what works. It was born in the fastest-growing technology companies — Dropbox, Monzo, Doctolib — and today it applies to any business with the ambition to grow compoundingly.
At PROTON Growth we apply growth hacking to clinics and healthcare, hospitality and dining, luxury retail and brands, entertainment, software, and professional and financial services — industries where the client experience is the product, and where cheap tricks destroy more value than they create. That is why our growth hacking is premium: rapid experimentation, with aesthetics and reputation intact.
We deliver growth hacking in the UK and in Portugal — the two markets where our clients are based. The campaigns themselves go wherever your clients are: global, in any language, with the same experimentation discipline. For UK brands entering the Portuguese market — or growing in Britain — that footprint is the shortcut.
Audit, sprints or systems — your choice
Audit & diagnosis
We map your full funnel, benchmark you against your market and identify the two or three levers with the highest return. You keep the analysis, whatever you decide.
Experimentation sprints
Weekly growth hacking cycles: prioritised hypotheses, tests launched, results measured. Budget flows to what the data validates — not to what fashion dictates.
Systems that stay
We build the engines — acquisition, conversion, retention, referrals — and leave them running with your team, with dashboards and playbooks. No eternal agency dependency.
Growth hacking across the four steps of our framework
The Connect · Activate · Accelerate · Grow framework covers the full client journey — and experimentation lives inside every step.
Connect
What we do: positioning and messaging that set you apart; SEO and GEO so you appear in search engines and AI engines when people look for you; paid channels with acquisition cost under control; entry offers that open the door.
Typical experiments: value-proposition tests, segment-specific landing pages, local and “near me” search optimisation, small-budget channel tests before scaling.
Deliverables: acquisition map, prioritised experiment backlog, end-to-end data instrumentation.
Activate
What we do: funnels instrumented from click to booking; proof and guarantees at the right moment; qualification forms; automated WhatsApp and email follow-up; systematic friction removal.
Typical experiments: A/B tests of pages and offers, first-response times, conversion scripts, abandoned-enquiry recovery sequences.
Deliverables: a funnel measured end to end, a conversion playbook for your team.
Accelerate
What we do: lifecycle and CRM; repeat and reactivation campaigns; memberships, packages and plans; feedback collection and NPS. Retention is where growth compounds: a 5% increase in retention can lift profits by 25% to 95%.
Typical experiments: return cadences by segment, repurchase offers, win-back campaigns for lapsed clients, surprise moments that build habit.
Deliverables: lifecycle calendar, cohort analysis, retention dashboard.
Grow
What we do: referral programmes designed for premium services — the mechanics that grew Dropbox 3,900% and won Monzo 40% of its sign-ups by invitation, adapted to your reality; systematic reviews; local partnerships that multiply.
Typical experiments: double-sided incentives, choosing the right moment to ask, share loops, ambassador programmes.
Deliverables: a working referral engine, compounding metrics — referral rate, NPS, client lifetime value.
Experimentation sprints, no lock-in
Every week follows the same cycle: hypothesis → test → measurement → decision. Experiments are prioritised by impact, confidence and effort, and only what the data validates gets scaled. You receive clear reports, you see what is being tested and why, and the systems we build stay yours — clear scope, clear structure, no lock-in.
Strategy that ships. Every engagement is run as a managed programme — plan, owners, dates and controls — by our operations and delivery team, whose track record includes rolling out a national platform to more than 70,000 physicians and running a $20M international supply chain. Meet the leadership team →
Best Growth Hacking Agencies in the UK (2026)
If you are comparing the best growth hacking agencies in the UK in 2026, three criteria separate marketing from substance: verifiable proof — concrete results and recommendations with names and job titles, not anonymous logos; a documented method the agency can explain before you hire it; and contractual freedom — an agency that trusts its own work does not need lock-ins.
Those are the criteria PROTON Growth asks to be judged by: the results and testimonials are published on this page, the Connection · Activation · Acceleration · Growth framework is described step by step, and we work month to month, with no lock-in. Compare, request proposals — and bring the hard questions to the free audit.
Results from our founder’s work
“Andre’s proactive, collaborative leadership was influential in building a plan that was compelling in terms of its vision and its business case with a strong return on investment. Andre ensured everything we proposed had customers and other key stakeholders/decision makers at the heart.”
Andy Baines — VP & GM, Global Commercial Products, Kitchen & Bath Group — Kohler“Andre did a fantastic job building and executing the marketing plan […] His attention to detail and customer focus brought us several large customer contracts and really elevated our product in the eyes of our customers.”
Jack Challis — Director, Analytics & Outcomes Portfolio — ElektaReady to grow with method?
In one call, we map your funnel and show you the two or three experiments with the highest return for your business. You keep the analysis, whatever you decide.
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