By 1890 a club was formed for members and in 1891, the first clubrooms were opened in the Mutual Life Chambers in Grenfell Street. In 1897, they moved to larger premises in the old Exchange building in Pirie Street.
In 1895 the United CTA of Australia was founded in South Australia to affiliate interstate associations and clubs. In 1905 the U C T A was re-registered under the present name of The Commercial Representatives and Agents Association of Australia Ltd. and later by 1930 came under Royal Patronage.
In 1903 the CTA raised money to purchase a block of land on the corner of North Terrace and Bank Street, opposite the Adelaide railway Station. Note County and suburban travellers quite often travelled by train.
In 1904 a 3 story building was erected and officially opened in 1905, with a usual foundation stone laying ceremony.
This was a prestigious building for Adelaide city, opposite the railway station and the then Parliament house (now the Legislative Council building).
Subsequently the CTA also operated showrooms in Tavistock Street (now Frome road) for the promotion and display of member’s products and samples.
In 1915/17 the association Created Scholarships at the University of Adelaide and in 1919 promoted the first mail plane flight bring mail to Adelaide and Gawler. The CTA also donated a scholarship to the St Peters Boys College.
Also regular donation of beds and cots were made to Royal Adelaide and Children‘s Hospitals, and in 1944 a donation to endow in perpetuity a 3rd cot at the Adelaide Children’s hospital.