Fresh From The Sea,
Straight To Your Table
Premium sustainable seafood sourced daily from Scottish and Cornish day boats. From oysters to lobster, we bring the ocean's finest to your kitchen.
Today's Finest
Our fishmongers have curated the very best of today's catch, just for you.
Explore Our Waters
Ready in 2 Hours,
No Delivery Wait
Order online, we'll prepare your selection fresh, and you pick it up at your convenience. No delivery charges, no waiting around.
Mon–Sat 7am – 6pm · Sun 8am – 4pm
Three Generations of Passion
for the Sea
It started in 1987 when Thomas Harper — our grandfather — converted a narrow shop front on Harbour Lane into Whitby's most beloved fishmonger. With just a market stall, a borrowed van, and an uncompromising relationship with the day boats coming in each dawn, he built something remarkable.
Today, FishOS is still family-run, still sourcing from the same trusted skippers, still waking before sunrise to select the finest catch. We know every boat captain by name, every fishing ground by heart. When you buy from us, you're buying a story — of tides and seasons, of craft and care.
We believe in fishing that gives back. Every species we sell meets strict sustainability criteria. We champion British fishermen, celebrate our rich coastal heritage, and refuse to compromise on quality.
Why Choose FishOS?
Unrivalled Freshness
Fish sourced daily from trusted day boats and fishermen we know by name.
Sustainability First
MSC certified where possible. We only sell what our seas can replenish.
Full Traceability
Every fish traced from sea to your door. QR codes coming soon.
Expert Knowledge
Three generations of fishmongers. We'll guide you to the perfect fish.
Hi! I'd like to order 2x Cod Loin and some King Prawns 🦐
14:23Perfect! Your order is confirmed. Ready for collection at 4pm ✅
14:25Amazing, thank you! See you at 4 🙌
14:26Order Fresh Fish
on WhatsApp
Prefer a personal touch? Just send us a WhatsApp. Our fishmongers will confirm availability, suggest alternatives, and have your order ready in no time.
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