All-In-Yachts — the boat, reinvented

Still haven't found the right boat?

One hull. Infinite talents.

Sporty or spacious. Open or enclosed. Dive, fish, family, party, work — the same boat, reconfigured in minutes. Everyday customizing — not a one-time choice the day you buy it. We didn't build another boat; we reinvented what a boat is.

Life changes — so does your boat.

Join the crew See how it works est. 2022 · Reichertshofen, DE
See it

One hull. Open or closed. Everything that clicks in.

AIY 42 closed — wheelhouse up, all-weather.
Closed — Cabin Cruiser.
AIY 42 open — roof back, doors wide.
Open — T-Top Day Boat.
BEACH CLUB SALOON / FLEX GALLEY / LOFT HELM
Connectors everywhere — where everything clicks in.
AIY 42 wrapped and fully loaded — jet ski, e-bike, SUP, dive tanks, grill, shower, screen and more.
Montage — one wrap, everything that clicks in: dive · bike · SUP · grill · screen…

Everyone else makes you choose: open day-boat or closed cabin cruiser. This is both — the same boat, switched in minutes.

What are the dots? Standardised connector points all across the boat. Click in whatever today needs — then change it tomorrow. Think apps, for your deck.

+ dining table + grill + dive rack + sun beds + rod holders + crane + shade … and the rest
In one breath

How you think about boats, reinvented in three moves.

01

One standard hull

No variants, no options list. Built identical every time — so it's affordable and bomb-proof.

02

Becomes any boat

Connectors plus click-in kits. Sporty, spacious, open, closed, dive, fish, family — in minutes.

03

A platform, not a product

An owner community plus purpose-built accessories that keep making it more. The App Store, afloat.

The problem

There was no one boat for every purpose. Now there is.

Sporty needs to be light. Spacious needs to be heavy. All-weather doubles every area inside and out. A million flybridge yachts solve this by looking great for three years, then dating. We stopped designing boats — and started building the future: a platform instead of a product.

The idea

Talents, not features.

A feature is fixed in a factory. A talent is a latent ability the owner unlocks. The AIY hull ships clean and identical, studded with standardised connectors. Click on what you need today — and only that. Tomorrow it's a different boat.

One standard boat means the lowest possible production cost and the most durable base. The differentiation doesn't live in the factory. It lives in your hands.

One standard hullNo variants. Equal parts. It rolls off the line the same way, every time.
EveryDayCustomizingFlex-connectors all over the boat. Reconfigure deck and interior in minutes, not at order time.
Fully open ↔ fully closedSliding doors and lifting roofs. A longer season — and every single day can run longer.
Hidden outboardsClean transom, shallow draft, owner-serviceable, hybrid- and electric-ready when the time comes.

It's the Swiss Army knife of the water — just better. And like the iPhone, the platform keeps getting more capable long after you buy it.

AIY 42 in anthracite — closed cabin cruiser at dusk
Anthracite · closed
AIY 42 in anthracite — roof back, open T-top day boat at dusk
Anthracite · open
AIY 42 in ocean-teal wrap — open T-top at dusk
Ocean teal · open

› one hull, every skin and every layout — the base is always white, every colour is a wrap, and the same boat goes from closed cabin to open T-top.

Form follows function

Designed, not styled.

Nautical, straight lines. A plumb bow. Hidden outboards. No gimmicks. The base hull is always white — colour comes via wrap. A boat built to age in dignity, not to look dated in three years.

Timeless outside, endlessly renewable inside — so it may be the last boat you ever have to buy.

AIY 42 multi-view technical drawing — top, side and end elevations.

› top · side · ends — the engineering intent, in one sheet.

No gimmicks

Every element has to earn its place twice.

GLASS

Forward-raked screen

The signature of pilots, fishermen and explorers — and not just a look. No glare in the glass at night, built-in shade by day, more light and headroom inside. For me, non-negotiable on any boat.

SHADE

Shade over the galley

The roof and the four sliding doors all converge at the galley block — casting natural shade exactly where you cook and eat. Where you always want it.

STRUCTURE

Open or closed, still structure

The convertible roof and doors aren't bolt-ons. They're weather, they're shade, and they help the boat hold its shape. Nothing aboard does only one job.

Buying a boat?

It always comes down to three questions.

Every honest boat forces a trade-off on each one. This one doesn't.

01

Where will you cruise?

North Sea, Baltic — or the South Seas? Most boats make you pick a climate. This one closes up warm and tight, or opens wide to the tropics. Any water, any season.

02

Who's your crew?

Normally this sizes your seats and berths — and locks you in for years. Here it falls away: the boat is as right for two as it is for twelve. Twelve aboard, twelve at the table, room to sleep — or just the two of you, with all that space to yourselves.

03

What will you do with it?

Everything. Dive, fish, host, cruise, work, stay the night — the one answer no normal boat can keep. And exactly what the talents below deliver.

Space & climate

North Sea. Baltic. South Seas.

Connectors flex the gear. The structure itself flexes the space — and the weather. That's the half most people miss: the same boat lives in three climates.

NORTH SEA
closed cabin · shoulder season
BALTIC
open or closed · all summer
SOUTH SEAS
fully open · pure tropics

Open it. Close it. Live in it.

Sliding doors and lifting roofs turn the cabin from a fully closed wheelhouse into a fully open T-top — and everything between. The season starts earlier and lasts longer, every day on the water can run later, and the very same hull sells into cold markets and hot ones alike.

Fully-opening structureClosed against wind and cold, open to the sky in the heat. More days, longer days, more regions — one boat.
Convertible space, both decksLiving areas, not fixed bedrooms. Both cabins switch between sleeping and seating — loft character, real communication zones.
Folding side balconies + beach platformDrop-down terraces fold out on both sides, and a swim platform opens up aft — the boat unfolds to the water and nearly doubles its living space at anchor.
Main facts

12 · 12 · 12 · 12 — on 12.

Twelve at one table. A crew aboard to sleep. On twelve metres — a combination you won't find anywhere else this size.

12
aboard
12
seats forward
12
at one table
12
places to sleep*
12m
length overall
Fully closed like a cabin · fully open like a T-top. ~8 t · 12.5 × 4 m · coastal-class · *10–12 in flex layouts

› twelve at one table is no trick either: a five-seat bench each side on connected benches, plus two head-of-table seats that fold up out of the bulwark. Cosy — but it works.

One deck · three modes

Same cockpit. Rearranged in minutes.

Aft sunpad, galley, the three helm seats behind the screen and the bow sunpad all stay put. Only the middle rearranges — drive it, dine twelve, or lounge. The orange dots mark the connectors each module clicks into.

Two more, in the back

Pop the tent. Sleep two more — or hand the kids a playground.

The aft canopy unfolds like a VW camper's — in seconds, by hand. At least two can sleep back there.

And here's the clever part: under way, the very same tent extends the saloon into a big, covered deck — a sheltered playground for the little ones, or simply more room to live. One piece of canvas, three jobs.

AIY 42 with the aft canopy deployed — a pop-up tent that sleeps two and extends the living space.

› canvas up — two berths, or a covered playground.

Where everyone sleeps

Six up top. Six below.

Up top · 6
  • Aft tent — 2
  • Forward tent — 2
  • Saloon benches convert — 2
Below · 6
  • Bow cabin — 2
  • Mid cabin — 4

Would you take twelve aboard for a two-week holiday? No. Would you all stay when the night in the bay runs long? Every time.

Below deck · seating ↔ sleep

Six berths, straight off the plan.

EveryDayCustomizing

Arm the talents you want today.

The same hull is a dive base, a fishing platform, a family weekender, a sundowner lounge, a chase boat. Tap a few — watch the boat change job.

0 talents armed › tap a talent
AIY 42 — one clean, constant hull with the forward-raked signature profile, ocean-blue wrap.

› same 12 metres, every time. The hull doesn't change — the job does.

› and the same logic runs below deck: shelves sized for standard Euro-boxes or textile inserts, bare walls that take click-in wood or printed panels — IKEA-simple, all from the catalogue.

And the rest of the brief

Flexible — but also fast, safe and fully equipped.

Flexibility is the headline, not the whole story. The same hull is a genuine performance boat, a safe family platform, and a comfortable place to stay.

Drive
  • Fast & agile hull
  • Hidden outboards
  • Joystick docking
  • Hybrid-/electric-ready
Safe
  • Solid, sea-kindly hull
  • Walk-around decks
  • High sides, heavy rails
  • Fail-safe multi-engine
Comfort
  • Galley & fridge
  • AC & heating
  • Hot water & deck shower
  • Quiet, closed cabin
Play
  • Beach club & balconies
  • Dive · fish · wake
  • Tender & toy garage
  • Sun beds & loft lounge
One more job

The perfect chase boat.

For a larger yacht, it's the ideal companion: move up to twelve guests in closed, weather-protected comfort — then flex to tender, dive boat, toy hauler or provisioning run. A sheltered cabin cruiser and an open day boat in one hull is exactly what a mothership wants.

AIY 42 in anthracite — closed and capable, the ideal chase boat for a larger yacht.

› anthracite · closed and capable — companion to a bigger yacht.

Join the crew

Built solo. Now looking for the crew.

This started as one person's concept — and a concept that the market has quietly proven right. It shouldn't be a solo project anymore. If any of this resonates, there's a seat for you.

Boaters & future ownersRegister interest. Help shape the first talents and the community.
Builders & production partnersYou build the hull. We bring the platform, the brand and the ecosystem.
Co-founders, makers & investorsDesign, engineering, software, go-to-market. The people to celebrate and curse with.

No spam, no fleet of newsletters. You'll hear from Oliver personally. Prefer email? oliver.sparks@all-in-yachts.com

Welcome aboard. Thanks — your message is noted. Oliver will be in touch personally.
The founder
"I went looking for the one boat that could do everything. It didn't exist — so I designed the system that could. Then the whole market quietly proved me right."
Oliver Sparksfounder · innovation & product

An innovation manager by trade, not a boat salesman by nature. I built the AIY concept, pitched it, and watched the industry move into exactly the space I'd described — without ever building the platform underneath it. When I started I had never even driven a boat. I have my licence now, and I've taken the helm. What I'm missing isn't conviction — it's a crew. If you've read this far, maybe that's you.