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Contact Us

Open Aggregates is operated by Greycoat Software.

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Looking for a phone number for a company, pit or quarry?
Try our beta app to lookup contact phone numbers and product availability at

Need to reach us?
Contact Greycoat Software
by phone (519) 746-6666
or e-mail

Office Address:
7-12 Dupont St. W.
Waterloo ON, Canada
N2L 2X6
(43.466116°N, -80.523287°W)

Mailing Address:
P.O. Box 42041
550 King St. North
Waterloo, ON
N2L 6K5

You can also find us on the following social media platforms:

Twitter:@OpenAggregates and @GreycoatSW