Good software feels obvious — because the engineering is hidden.
Brantum's Lead Architect
Lead Solutions Architect
We Build.
We Market.
We Market.
You Grow.
We build human-centred software and data-driven marketing that transforms pipelines, accelerates acquisition,
and compounds growth across every stage of your software journey.
About Us
Human-Centered Software,
Built for Production
Built for Production
Our Mission
Based in London, UK, we build software and marketing that work together. Our mission is to eliminate the agency handoff problem — where dev and marketing never align — by being the single team accountable for both. We unite engineering, design, and performance marketing to deliver scalable, production-grade solutions that generate measurable ROI from day one.
Trusted by 50+
fast-growing brands
Core Values
Guided by Principles
Truth Over Comfort
We tell clients what they need to hear, not what they want to hear. If an idea won't work, we say so before the budget is spent — then propose a better path forward. Honesty compounds over time.
Ownership Mentality
We don't deliver projects. We take ownership of outcomes. Your revenue targets are our targets. We succeed when you do — which is why 94% of our clients stay with us year on year.
Systems Over Heroics
We build repeatable systems — in code and in marketing — so growth isn't dependent on any one campaign or individual. Compounding beats one-off wins every time, and systems beat talent at scale.
Speed With Precision
Agile doesn't mean chaotic. We ship fast and maintain the quality bar that Series B clients expect. Weekly demos, no surprises, always on roadmap — velocity without the mess.
Tools
We Work With
Powerful Tech Stacks
Powerful Tech Stacks
We design, build, and scale with a modern full-stack — React, Node.js, Python, AWS, HubSpot,
and best-in-class AI tools — so your product is fast, reliable, and market-ready.
and best-in-class AI tools — so your product is fast, reliable, and market-ready.
Statistic
Software That
Builds. Marketing
That Grows.
Builds. Marketing
That Grows.
Awards
Best Software & Marketing Agency
B2B SaaS PLG Execution
/ 2025
Top Performance Marketing Agency
Google Ads Excellence Award
/ 2025
Clutch Top Agency UK
Custom Software Development
/ 2024
Google Premier Partner
Search & Performance Excellence
/ 2024
Testimonials
What Our
Clients Say
Clients Say
Brantum is the only agency we've found that truly understands both sides. Our engineers love working with them because they speak tech. Our CMO loves them because they drive results.
Sarah K.
CTO, Series A SaaS Startup
We hired three agencies before Brantum. What took six months of back-and-forth between dev and marketing now gets done in six weeks by one team who actually communicates.
James T.
Founder, B2B Platform
Page 5 to position 1 for our core keywords in 4 months. Even more impressive — they shipped our entire v2 product at the same time. One team doing both is a genuine superpower.
Alex R.
CEO, FinTech Startup
FAQs
Frequently Asked
Questions
Questions
Most agencies do either software or marketing. Brantum does both under one roof, with one team and one shared roadmap. That means your software is built with growth mechanics from sprint one — analytics, attribution, and PLG loops — not bolted on later by a separate agency that doesn't understand your codebase.
We're based in London, UK and work with clients across the UK, Europe, and North America. The majority of our engagements are remote-first, with optional on-site sprint kick-offs and quarterly business reviews for retainer clients.
We work primarily with software companies — B2B SaaS, FinTech, PropTech, HealthTech, and EdTech. Around 60% of our clients are funded startups (Seed to Series B); the rest are established scale-ups modernising their tech stack or launching new product lines.
The best first step is a free 30-minute strategy call. We'll review your current software stack, growth challenges, and goals — then tell you honestly what we'd recommend and what it would cost. No commitment required. Book directly from our contact page.
Contact
Let's Build
Something That Grows
Something That Grows
E-mail address
Phone number
+44 (0) 20 7946 0958