Online manufacturing business ideas for the US
21 ideas
These 21 ideas let you serve manufacturers and industrial buyers through a website instead of a factory floor or storefront. Some are resale models, like an online screw and fastener supplier or an online bearing reseller.
Online copper sheet and offcuts shop
Sell cut-to-size copper sheet, tube, wire and offcuts online to makers, hobbyists and small shops.
- $3k-15k
- Side hustle
- Online
Online bearing reseller
Sell ball, roller and plain bearings online to repair shops and small factories, shipped straight from your suppliers.
- $1k-5k
- Side hustle
- Online
Small-batch watch microbrand
Design your own watch, build small batches from sourced parts and sell directly to collectors online.
- $3k-15k
- Side hustle
- Online
Online metal offcuts and cut-to-size shop
Sell small cut pieces and remnants of steel, aluminum and brass to makers and small shops online.
- $3k-15k
- Side hustle
- Online
Online screw and fastener supplier
Sell screws and fasteners in bulk packs online to contractors, shops and small manufacturers.
- $1.5k-8k
- Side hustle
- Online
Online molding supplies reseller
Sell mold release, casting resins, silicone and inserts online to small shops and prototype makers.
- $1.5k-7.5k
- Side hustle
- Online
Online print-to-order service
Take print orders through a simple website and ship business cards, flyers and posters to customers.
- $500-4k
- Side hustle
- Online
Online metal seller for makers and small shops
Sell cut-to-size sheet, bar and tube online to hobbyists and small shops, shipped from a larger supplier or your own space.
- $2k-10k
- Side hustle
- Online
Online rubber sheet, seal and hose reseller
Sell rubber sheets, gaskets, seals and hoses online to trade buyers, with orders shipped by your wholesale supplier.
- $1k-5k
- Side hustle
- Online
Online plastic sheeting store
Sell poly sheeting rolls online to contractors and farmers, shipped straight from a supplier.
- $500-3k
- Side hustle
- Online
Online paper bag reseller for small businesses
Sell plain and custom-printed paper bags to local shops, cafes and event planners, with a supplier shipping the orders.
- $800-4k
- Side hustle
- Online
Online spring supplier for repairs and small makers
Stock or source standard springs and sell them online to repair shops, hobbyists and small manufacturers.
- $2k-10k
- Side hustle
- Online
Mold design and tooling project service
Design molds on your computer and manage outside machine shops to build them for product companies.
- $2k-8k
- Side hustle
- Online
Online industrial vacuum and filter reseller
Sell industrial vacuums, filters and accessories online to shops and cleaning contractors, shipped from suppliers.
- $1.5k-7.5k
- Side hustle
- Online
Online aluminum reseller for small orders
Sell aluminum sheet, bar and shapes in small quantities online, with orders shipped from a bigger supplier.
- $1.5k-8k
- Side hustle
- Online
Online custom print service
Sell custom stickers, labels or invitations online and fulfill them with your own printer or a wholesale partner.
- $500-4k
- Side hustle
- Online
Used food equipment reseller
Buy, refurbish and resell used mixers, slicers and packaging machines to small food makers.
- $3k-15k
- Side hustle
- Online
Mail-in vintage watch and clock restoration
Restore vintage watches and antique clocks for collectors across the country, sent to you by mail.
- $3k-12k
- Part-time
- Online
Custom-branded leather goods supplier
Supply logo-stamped or private label leather wallets, belts and bags to small brands, companies and gift sellers.
- $1.5k-7.5k
- Side hustle
- Online
Online cut-to-size foam shop
Buy foam in bulk, cut it to custom sizes in your garage or small space, and ship it to DIYers, crafters and small upholstery shops.
- $2k-10k
- Side hustle
- Online
Online industrial tools reseller
Sell industrial tools and shop supplies to small workshops online, with orders shipped straight from distributors.
- $1k-5k
- Side hustle
- Online
About these ideas
Others add a light production step, such as an online cut-to-size foam shop. They suit people with some knowledge of materials, parts or trade customers, and who are comfortable handling orders, shipping and detailed product listings. Before you choose, think about who your buyers are, whether you will hold stock or have suppliers ship directly, and how you will handle returns and wrong-size orders. Check what margins look like after freight, since heavy or bulky items can change the economics quickly. Start with a narrow product range you can describe accurately.
Questions
Do I need a factory or workshop to start an online manufacturing business?
Not always. Many ideas here are resale or drop-ship models where suppliers hold the stock. Others, like cutting foam to size, need a small workspace and tools. Check which model fits your space, budget and skills before committing.
What should I check about selling industrial products online in the US?
Check whether your products need safety labeling, material certifications or specific standards, and whether your state requires a seller's permit or sales tax collection. Ask your suppliers for documentation, and consider speaking to a local adviser or your state agency.
How do I handle shipping for heavy or bulky items?
Compare carrier rates for your typical order size, and ask suppliers whether they can ship directly to customers. Check packaging costs, freight options for pallets and how returns will work. Build shipping into your pricing so margins hold up on larger orders.