International Irrigation Systems, Inc.
Custom-build and order irrigation systems using the Irrigro online store. Design systems for small gardens and landscaping to large commercial grower installations.
http://www.irrigro.com/

Sadot Irrigation Systems
Makes and supplies irrigation and fertiliser application systems for glasshouse systems.
http://www.sadot-irrigation.com

RAESA (Irrigation systems)
Manufactures and distributes sprinkling irrigation systems and aluminum profiles. Production in Spain and Argentina. [Spanish/English/French]
http://www.raesa.com/

Ocmis Irrigation (UK) Ltd
Welcome to OCMIS for fountain water features, irrigation schemes, screenings, sewage & waste water treatment.
http://www.ocmis.com/

IDROFOGLIA Irrigation Systems
Manufacturer of irrigation machines and systems and motor pump sets.
http://www.idrofoglia.it/

B.B. Hobbs Company
Wholesale distributor of irrigation equipment. Designs and installs large irrigation systems.
http://www.bbhobbs.com/

Water Rite Products
Drip irrigation systems and parts. Includes online ordering, drip irrigation FAQ, and books.
http://www.waterrite.com/

Akland Pump & Irrigation Co Inc.
Pump distribution and repair with focus on irrigation and sprinkler systems. US based.
http://www.aklandpump.com/

Certified Irrigation Designs
The website of Danny C. Kruse, CID, CLIA. Private irrigation design contractor for engineers and landscape designers.
http://www.certifiedirrigationdesigns.com/

Sprinkler.com
Online sprinkler and irrigation store. Sprinklers, valves, controllers, pipe, fittings and other sprinkler system parts.
http://www.sprinkler.com