This is the heavier end of the catalogue: full-time businesses that usually need premises, staff and real capital — a unit, equipment, stock, the first payroll. Every entry states its startup cost, its margins, a step-by-step launch plan, the risks, and a calculator you fill with your own figures instead of ours.
Here is what similar lists rarely admit. The biggest line item is often not the machinery or the rent, but the months when fixed costs are already running and revenue is not. If you do not have a reserve for half a year of operation, and you would rather avoid employees, permits and opening hours, you will be happier in online business or hands-on services.
235 ideas in this theme

Running darkness retreats — the client spends several days in total darkness without stimuli for a deep mental reset, with expert guidance and screening.

And 525+ more ideas waiting inside
Unlock the full databaseUsually the one where you already have a trade, contacts or industry experience — those shorten the time to first revenue more than any trend does. Compare each idea's startup cost against its margin and payback period in the catalogue, and choose on your own numbers rather than on popularity.
It ranges by orders of magnitude: some ideas need a van and tools, others a full fit-out. Each entry breaks the startup cost into items. Add a reserve covering fixed costs until revenue arrives — that reserve is usually the largest and most underestimated part of the budget.
Mostly not, in this category. Opening hours, staff and deadline-bound contracts sit badly next to fixed employment. If you are keeping your job for now, ideas from online business or hands-on services let you schedule the work around it far more realistically.
Renting a private wellness zone with a sauna and hot tub exclusively for one couple or group — booking by blocks, no strangers, online and without a queue.

Renting experiential rides in retro and cult cars — Trabant, Beetle, classics and US icons by time, as an experience, a gift and an attraction for tourists.

Running a salt cave with salt walls and aerosol — relaxation and breathing support, with entries, memberships and packages for families and companies.

Teaching horse riding and rides into nature — regular lessons, memberships and experiential packages for beginner and advanced riders.

Running floating accommodation on a lake — an experiential stay on the water with fishing and a boat included, rented via own website and booking platforms.

Classes in relaxing and sensual massage for couples — wellness and relationship growth where partners learn touch techniques and mutual care.

A restaurant runs cooking classes of its speciality outside opening hours — using the empty kitchen as extra income and marketing for new guests.

Creating outdoor cipher games for groups — players solve clues and hunt for treasure in a park, forest or city, as a kit and corporate teambuilding.

Production and sale of a carbonated clear protein drink from clear whey — tastes like a soft drink, no lactose, sugar or fat, for fitness and everyday thirst.

Operating floatation tanks with salt water for deep relaxation and recovery — the client floats weightless, isolated from light and sound.

Production of natural cleaning products from safe ingredients without harsh chemistry — a ready home cleaning range for families with children and allergy sufferers.

Branding and sale of compostable phone cases from biodegradable materials with custom design — eco alternative to plastic covers.

Regular pickup of used coffee grounds from cafes and conversion into soaps, scrubs and compost with a certificate for the cafe's sustainability marketing.

Make-up artist and hairstylist arrive in the morning of the wedding at the bride, treat her and her bridesmaids and stay on for touch-ups all day.

B2B service for British restaurants and boutiques — rents lights, installs the display, maintains it through the season and clears everything in January.

App connecting small farmers and growers in the nearby area with consumers seeking quality local food at a fraction of typical supermarket prices.

Exercise exclusively for mothers 6 weeks - 2 years post-partum, with kids' corner, nursing break and pelvic floor recovery programme.

Weekly offline retreats without electronics specifically designed for burned-out founders, with meditation programme and expert facilitation.

Network of restaurants sharing reusable containers, customer pays deposit, returns container at any partner venue and deposit is refunded.

Full-service vegan bistro with spacious seating, lunch/dinner menu, brunch, premium tasting events plus B2B corporate plant-based catering.

Vintage Piaggio Ape espresso bar with rotation between tourist hotspots (summer), festivals and Christmas markets (winter) — established-operator-style multi-channel.

Vintage Piaggio Ape converted to mobile prosecco bar — wedding planners, corporate events and garden parties on a turnkey basis.

Wooden and polyurethane training tools for rock climbers — hangboards, pinch blocks, campus boards, custom holds for B2C and B2B climbing gyms.