An industry journal said in 1909 "The clay products of this company have long been a standard for general excellence in Seattle and the entire northwest" and described its products: "Four great factories are operated by this big Seattle concern, one being devoted exclusively to the manufacture of sewer pipe, with a capacity of two miles of sewer pipe daily; one devoted exclusively to the manufacture of terra cotta; another, the Renton factory, manufactures paving brick of high quality, while the Taylor plant embraces the new sewer-pipe and hollow-ware, as well as the dry-press and fire-brick factories.

His son Orion O. Denny, who was the first baby boy born to the settlers of Seattle, became a vice-president of the company and president in 1899 when Arthur died.

[8] It merged with Renton Brick Works and was renamed Denny-Renton Clay and Coal Company.

The company was bought by Gladding, McBean in 1927 and ceased to exist as a separate operation.

[12][13] Pike Place Market, built in 1907, is paved with Denny Renton bricks.