Together, their revenues are expected to total more than $15 billion in 2013.
But the two giants, Telus Corp. and B.C. Hydro, are fighting it out in Kamloops small claims court over $4,000.
B.C. Hydro, a Crown corporation, is suing Telus over low-hanging wires brought down by a machine operator working at Paska Lake, southwest of Kamloops.
A statement of claim filed by B.C. Hydro states that it owns the poles, while Telus owns the wires.
The two entered into a joint agreement in 1971 regarding co-operative use of poles to hang power and communication lines.
The Crown corporation claims Telus did not properly maintain the lines, ensure they were the correct height and also failed to notify motorists. It has filed a claim for $4,000 in damages from the incident.
The wires were knocked down on April 29 on Meadow Creek Road by a skid-steer loader owned by Greenstone Forestry Service Ltd.
B.C. Hydro did not respond to a request for comment.
Telus spokesman Shawn Hall said the corporation just received the documentation, filed in small claims court Tuesday.
"We have a good working relationship with B.C. Hydro and are confident we can resolve the matter," Hall said.
"It does seem to be a small amount."