Growth consultancy · Premium service businesses

Growth,
engineered.

Proton Growth builds acquisition, retention and growth systems for clinics & healthcare, hospitality & dining, luxury retail, entertainment & adventure, software, and professional & financial services — powered by data, science, and execution.

100+ years of combined experience across growth hacking, digital marketing, revenue marketing, communications & PR, AI & digital transformation, and portfolio strategy — delivered with rigour and reliability.

Luxury Retail Entertainment ProfessionalServices Software Financial Hospitality Clinics and Healthcare

The industries in our orbit

Clinics & Healthcare Hospitality & Dining Luxury Retail & Brands Entertainment & Adventure Professional Services Financial & Advisory
I.

Data-driven decisions

Every recommendation traces back to your numbers — funnel data, cohort behaviour, unit economics. No taste-based marketing.

II.

Scientific approach

Hypothesis, test, measure, keep or kill. We treat growth as an experimental discipline, not a creative gamble.

III.

Execution that delivers

Strategy decks don’t grow revenue — shipped systems do. We build, launch and operate alongside your team.

The Proton Growth method

Connect. Activate. Accelerate. Grow.

Connect
Weeks 1–2

A full audit of your funnel: where customers come from, where revenue leaks, how you compare to your market.

Activate
Weeks 3–6

We build the system — targeting, CRM, automation, offers — and switch it on with your team.

Accelerate
Weeks 7–12

Live campaigns, nurture sequences and weekly optimisation. Wins get scaled; misses get killed fast.

Grow
Ongoing

Compounding: new segments, retention loops, and a dashboard that shows exactly what your growth costs and returns.

Strategy that ships. Every PROTON Growth engagement is delivered as a managed programme — plan, owners, dates and controls — led by our operations and delivery team, which has rolled out a national platform to more than 70,000 physicians and run a $20M international supply chain. Meet the leadership team →

Proven in the field

Results Growth Hacking clients bank on

Landmark, documented results — from Portugal, the UK and beyond — built on the same referral, loyalty and retention mechanics we engineer for premium service businesses. And the economics compound: Bain & Company research shows a 5% lift in retention raises profits by 25–95%.

Luxury — Portugal & UK
$4.2B
record GMV, up 33% in one year
Farfetch — the Portuguese-founded luxury platform
  • +98% growth vs two years prior
  • Revenue up 35% to $2.3B
  • Built from Porto to global category leader
Financial services — UK
40%
of sign-ups from one referral mechanic
Monzo — the “Golden Ticket” programme
  • 200,000+ on the launch waiting list
  • £1M crowdfunded in 96 seconds
  • 5 million customers by 2020 — at zero referral cost
Clinics & healthcare — Europe
450,000
health professionals on the platform
Doctolib — Europe’s clinic booking leader
  • 80 million patients across Europe
  • Patient no-shows cut by 60%
  • France’s most valuable tech company, at €5.8B
Hospitality & dining
3×
member spend vs non-members
Starbucks — Rewards programme
  • ≈57% of home-market revenue from members
  • 30M+ active members
  • Loyalty as the demand engine
Referral engineering
3,900%
user growth in 15 months
Dropbox — two-sided referral programme
  • From 100,000 to 4 million users
  • 2.8 million invites in a single month
  • No traditional ad spend
Clinic growth marketing
+250%
calls & appointment requests in 3 months
DentalWorks — multi-location dental group
  • Every call and booking tracked to its source
  • Sustained while ad budget scaled +174%
  • The playbook: measure, test, scale what converts
Track record

What leaders say about our work

Recommendations from executives who worked with our founder.

André da Silveira, founder of PROTON Growth
“In working with Andre, the critical characteristics that stood out were his leadership skills, integrity, customer obsession and a keen ability to translate product features into solutions-oriented value propositions. By far, one of GE Healthcare’s most successful funnel generation tactics was the Sales Plays that André both co-developed and led. […] Without reservation, I recommend Andre for any Marketing or Product leadership role.”
David SedaChief Marketing Officer — GE Healthcare Digital
“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. I really recommend him for taking your sales and marketing to the next level.”
Jack ChallisDirector, Analytics & Outcomes Portfolio — Elekta
“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 BainesVP & GM, Global Commercial Products, Kitchen & Bath Group — Kohler
“Andre is a dedicated […] member with a great work ethic. He is a self-starter […] I thoroughly enjoyed having Andre as part of […] and would recommend him […] based on his contribution.”
Andrew WilsonPresident, Oncology Informatics — Elekta
“Andre demonstrated proven strategic marketing expertise by spearheading the pre launch preparation work […] paving the way for our new MRI product launch in the UK. […] I am confident in Andre’s skills, making him a valuable asset to any organization.”
Faizal MansorGlobal Head of Marketing — Guerbet
“André is a professional business man with a good knowledge of the healthcare market in Portugal. He analyzes the market situation in great detail, defines the opportunities and is able to plan accordingly. […] a great asset for the company.”
Dirk KleppeSenior Sales Director Europe — Wolters Kluwer / UpToDate
Engagements

Clear scope. Clear structure. No lock-in.

Growth Starter

For single-location businesses building their first system
Lower CAPEX · higher OPEX
  • Customer audit & growth strategy
  • Two revenue channels optimised
  • Core automation set up
  • Monthly performance report
  • Email support
Start with an audit

Growth Enterprise

For multi-location groups and franchises
Custom
  • Everything in Accelerator
  • Multi-location rollout
  • Custom integrations
  • Dedicated team & 24/7 support
  • Advanced analytics & attribution
Talk to us
Free 30-minute growth audit

See what your growth is worth.

In one call we map your funnel, benchmark you against your market, and show you the two or three moves with the highest return. Keep the findings either way.

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We reply within 4 working hours.

Prefer to talk first? WhatsApp or ProtonGrowth@proton.me

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