国际辅助语协会(International Auxiliary Language Association、IALA)成立于1924年，旨在"促进广泛的研究、讨论，和创建一个涉及国际辅助语之所有相关问题的宣传。并且结合研究和实验，如此可以以智能和稳定基础的方式加速创建国际辅助语的发展"。

虽然协会的创建是为了确定那些众多竞争者所发表的"辅助语"何者是最适合国际交流，但是它最终确定那些众多的竞争者却没有一个是能够胜任语言的工作负荷、及进一步发展自己的语言国际语。直到1954年IALA持续的在国际语组织上发表相关的数据，然而它的研究数据却被新的"科学服务(Society for Science and the Public)国际语部门"所采用。

The International Auxiliary Language Association (IALA) was founded in 1924 to "promote widespread study, discussion and publicity of all questions involved in the establishment of an auxiliary language, together with research and experiment that may hasten such establishment in an intelligent manner and on stable foundations." Although it was created to determine which auxiliary language of a wide field of contenders was best suited for international communication, it eventually determined that none of them was up to the task and developed its own language, Interlingua. The IALA continued to publish materials in and about Interlingua until 1954, when its activities were taken up by the new Interlingua Division of Science Service.