A sustaining member is an individual, partnership, corporation, association, or other entity which although not an owner or operator of underground facilities and thereby eligible to become a General or Associate Member of this Corporation, nevertheless wishes to promote the purpose of this Corporation as specified in Article Second of the Articles of Incorporation of this Corporation. 

Oklahoma One-Call System, Inc does not endorse any company listed below. Part of the benefit of being a sustaining member is exposure on our website.

Private Underground Utility Locating Services


These companies provide services to assist your company with marking the approximate location of your underground facilities in advance of planned excavation.

Outside Plant Damage Investigation and Recovery Services



A solid Outside Plant Damage program will reduce the number of future damages incurred by seeking all damage recoveries, becoming involved with state agencies and in the 811 community, and helping to educate contractors along the way.

Member Services
[email protected]
1(800) 522-6544 or (405) 840-9955 ext. 7125
Fax: (405) 605-1629