It appears there is a discrepancy in the information provided. The EIN mentioned in the query (953030658) does not match any of the search results. However, based on the available information, it seems the Institute of Internal Auditors you are referring to might not be the main organization but possibly a specific chapter or related entity. Here is an article based on the information available for the Institute of Internal Auditors generally and the Los Angeles chapter:

Institute of Internal Auditors (IIA) and Local Chapters

Overview of The Institute of Internal Auditors

The Institute of Internal Auditors (IIA) is a professional organization that supports the internal audit profession worldwide. It is designated as a 501(c)(6) organization, which classifies it as a business league created for the improvement of business conditions. The main IIA organization is headquartered in Lake Mary, Florida, and it provides leadership, resources, and professional development opportunities for internal auditors globally.

Mission and Activities

The IIA's mission is to advance the internal audit profession by advocating for and promoting its value to stakeholders. It achieves this through various activities, including setting professional standards for internal auditing, offering certification programs like the Certified Internal Auditor (CIA) designation, and providing training and networking opportunities for its members.

Local Chapters

The IIA has numerous local chapters around the world, including in the United States. These chapters organize events, conferences, and training sessions tailored to the needs of their regional members. For instance, the Los Angeles Chapter, established in 1943, serves the Greater Los Angeles area by offering educational seminars, professional meetings, and networking opportunities.

Services and Benefits

Membership with any IIA chapter, including the Los Angeles Chapter, offers access to various resources, including professional guidance, networking opportunities, and savings on training and certifications. Members are primarily from industries such as government, banking, financial services, healthcare, education, and entertainment.

However, without specific details matching the EIN (953030658), it's challenging to provide detailed information unique to that entity.