📍 7113 Petaluma Dr, Fontana, CA, 92336
📞 909-820-5750
📍 9333 Fairway View Pl, Rancho Cucamonga, CA, 91730
📞 909-944-4985
📍 2386 W Calle Celeste Dr, Rialto, CA, 92377
📞 909-427-8950
📍 10970 Arrow Route Ste 104, Rancho Cucamonga, CA, 91730
📞 909-483-7882
🌐 laserlin.com
📍 4295 Jurupa St Ste 104, Ontario, CA, 91761
📞 909-981-2172
🌐 goadvanced.com
Updated Sep 2026
📍 3200 Inland Empire Blvd Ste 190, Ontario, CA, 91764
📞 909-476-0309
🌐 ricoh-usa.com
📍 3237 E Guasti Rd Ste 200, Ontario, CA, 91761
📞 909-390-7400
📍 Serving Your Area, Riverside, CA, 92501
📞 800-822-2979
📍 3570 14th St, Riverside, CA, 92501
📞 951-682-8800
🌐 www.reliable-os.com
Originally founded as Riverside Office Supply in 1903 in downtown Riverside, Jeff Eshelman purchased the company in 1984. Jeff immediately began enhancing the company’s office supplies, stationary products and office equipment. Reliable Office Solutions Group has continued to grow steadily and now has a dedicated staff of over 50 employees at four locations. We are authorized for factory direct buying for Ricoh/Lanier, Okidata, H. P., Muratec, Canon, and Brother. ROS maintains a large inventory of equipment and consumables which allows us to provide accelerated delivery to any location within the United States. Our service technicians are factory trained and certified for all equipment lines.