Visitor Services staff provide public historic tours of the Capitol, as well as educating school-aged children about state government and Colorado's history

Information Technology Staff provide information and technology services and support to all legislators and legislative staff and support and maintain the General Assembly's computers, printers, networking equipment, servers, storage systems, and wireless network.  Staff also manage services pertaining to a centralized file storage system, website support, and the development and maintenance of various custom software applications used by legislative staff and legislators.

The IT staff is organized under the following teams:

Economics Staff prepare General Fund and cash fund revenue forecasts and other forecasts used in the state budgeting process.

Fiscal Notes Staff prepare fiscal analyses of all bills and concurrent resolutions considered by the General Assembly.

The State Auditor and three Deputy State Auditors compose the OSA’s executive management team, known as CSALT (Colorado State Auditor Leadership Team). CSALT is responsible for providing strategic and operational direction for the OSA's performance, financial, and IT auditing activities, including maintaining accountability for all in-house and contract audits, staffing assignments, matters of OSA policy, legislative and agency concerns, personnel issues, and organization-wide initiatives.

Research & Committee Analysts prepare research requested by members of the General Assembly and provide staff support to standing and interim committees.  Additional duties include researching and preparing written documents on topics of interest to state legislators, including researching and writing portions of the "Blue Book" voter guide on statewide election issues.

The purpose of the OSA's Fraud Hotline is to receive reports about occupational fraud, a situation in which a state employee or contracted individual (i.e., individual acting under a contract, purchase order, or other similar agreement for the procurement of goods and services with a state agency) may be using their position or access as an employee or contractor to commit fraud against the State or others.

In most states, the executive branch initiates the main appropriation bill for the ongoing operations of state government. Colorado, however, has a strong legislative budget process. The General Assembly's permanent fiscal and budget review agency, the Joint Budget Committee (JBC), sponsors the annual appropriations bill (called the "Long Bill") for the operations of state government.