About Wildbox
Adventure Vehicles
Camper van builders who do it properly.
Wildbox design and build bespoke camper vans with an engineering-first approach. We also provide professional repairs, servicing, and upgrades for camper vans and motorhomes. Based in West Sussex, we've spent 25+ years in specialist vehicle engineering—working with defence, blue-light, and commercial fleets where safety and reliability are non-negotiable.
What this means for you
Less faff, more range, safer miles
A build that holds its value
Designed to feel like a home on wheels—tactile, quiet, warm and built to last
Our Story
Wildbox started with a simple idea: camper vans should be built properly. Not just to look good, but to work reliably, stay legal, and last.
We cut our teeth in demanding sectors—defence, blue-light and commercial fleets—where safety, compliance and uptime are non-negotiable. That background shapes everything we do, whether we're designing a full custom build or diagnosing an electrical fault on someone else's conversion. We treat every job as a proper engineering project.
What matters to us (and our customers)
Weight discipline under 3.5t
Without losing the kit you actually need
Reliability and safety
Engineered like critical equipment—not a hobby project
ULEZ/MOT compliance
Clean documentation for peace of mind
True off-grid capability
Smart power, water and thermal management
Resale confidence
Thanks to serviceable systems and traceable engineering
Security built-in
Multi-layer protection for gear and peace of mind
The Wildbox Standard
Do it the right way
Proper engineering, proper documentation, no shortcuts.
Created with conscience
Weight-smart choices that reduce waste and fuel burn.
Driven by curiosity
We prototype, test, iterate—the wild doesn't care about theory.
Built to last
Serviceable systems, crash-aware mounting, fix-in-the-field thinking.
Engineered for the future
Power and integration that can evolve with your needs.
Triple-Lock Design Guarantee
Full refund if you're unhappy, you keep the drawings, and the design fee is credited to your build when you proceed.
Who you'll be working with
Mark Cropley
Founder & Lead Engineer
25+ years building and integrating specialist vehicles for blue-chip fleets, defence and emergency services. Mark translates expedition needs into safe, efficient, legal builds.
What this means for you: pragmatic decisions that protect range, payload and resale.
Danny Harrocks
Operations & Build Lead
Hands-on lead for fit-out and systems integration. Danny ensures designs are executed precisely, wiring is immaculate, and every fastener has a reason.
What this means for you: a quieter, tighter, more reliable vehicle.
Martin Crowley
Designer & Materials Specialist
Our resident designer and materials expert. Martin helps design interiors that feel like home—warm, quiet, durable—while staying within weight and safety limits.
What this means for you: refined finishes that look great after 50,000 miles.
Richard Callaghan
Master Carpenter
Expert craftsman specializing in precision joinery and custom cabinetry. Richard brings decades of carpentry mastery to create functional, beautiful interiors built to withstand adventure.
What this means for you: flawless joinery and storage solutions that last.
Backed by experience
Wildbox is backed by investors and advisors with deep experience in engineering, vehicle systems, and adventure travel. Their input keeps us honest: every decision needs to make practical sense, not just look good on paper.
What to expect as a client
Design Pack
Clear brief, layout drawings, 3D visuals, weight & power modelling, and materials schedule.
Build
Transparent milestones, photo/video updates, documented installs.
Handover
Training, spares list, wiring and plumbing schematics.
Aftercare
Responsive support and upgrade paths as your trips evolve.
Thinking about a camper van?
Whether you're planning a full build, need help with an existing van, or just want honest advice before you commit—get in touch.