Dark Horizon Corporation
- Manufacturer of custom-designed lightweight titanium hammers For Tippmann, Kingman, and Brass Eagle markers also sells markers with hammers preinstalled.
- http://www.darkhorizoncorp.com/

Aim Paintball Inc.
- Manufacturer of paintball markers, barrels, and accessories features product listings and pictures.
- http://www.aimpaintball.com

A+ Anodizing and P8ntball Products Inc.
- Manufacturers of upgrade parts for markers offer air systems, accessories, masks, media, and paint.
- http://www.aplusp8ntball.com/

Real Action Paintball
- Manufacturer of firearm replica RAP5 and SR16 series of markers also sell paintballs, tactical gear, and accessories. Provides forum, event listing, dealer listing, and wholesale info.
- http://www.rap4.com/

Campsall Enterprises
- Retailer of military replica paintball markers, grenades, landmines, mortars, grenade launchers, and ghillie suits.
- http://www.addictedtopaintball.com/

Palmer's Pursuit Shop
- Sacramento, California maker of custom built markers including the Blazer, Typhoon, and Stroker also offers components and upgrade services. Publishes extensive technical articles and videos, safety tips, links, news, and pictures.
- http://www.palmer-pursuit.com/

Belsales Performance
- Manufactures custom markers including the Evolution, Predator, Terminator and Inferno, and accessories. Also sells Worr Game Products markers.
- http://www.belsales.co.uk/

Airgun Designs
- Creators of the Automag, Minimag, E-Mag, and others. Product listings, price lists, technical information, gallery and a listing of teams using their markers.
- http://www.airgun.com/