Construction audit
It is a review of various aspects of a project to ensure they are performing appropriately and in keeping with the contract. Activities may include an analysis of the contracts granted to contractors, prices paid, overhead costs allowed for reimbursement, change orders, and the timeliness of completion. Since construction projects typically involve several entities performing a number of concurrent tasks, a construction audit is a crucial tool for keeping everything on track and under budget.

Financial audit
It is an independent, objective evaluation of an organization’s financial reports and financial reporting processes. In other words it is an analysis of the fairness of the information contained within an entity's financial statements. It gives regulators, investors, directors and managers reasonable assurance that financial statements are accurate and complete.

Information systems audit
It is an examination of the controls within an entity’s information technology infrastructure. This involves a review of the controls over software development, data processing, and access to computer systems. The intent is to spot any issues that could impair the ability of IT systems to provide accurate information to users, as well as to ensure that unauthorized parties do not have access to the data and data integrity is maintained

Investigative / Forensic audit
It is sought for to uncover fraud, missing money, negligence, and/or malfeasance. It is an investigation of a specific area or individual when there is a suspicion of inappropriate or fraudulent activity. The intent is to locate and remedy control breaches, as well as to collect evidence in case charges are to be brought against someone.

Operational audit
It is a future-oriented, systematic and independent evaluation of organizational activities which reviews the effectiveness, efficiency and economy of operations. The objective is to provide senior management of the organization with a detailed understanding of the responsibilities and risks faced by the organization and recommending ways for improving control.

Internal Audit
An internal audit is the examination, monitoring and analysis of activities related to a company's operations, including its business structure, employee behaviour and information systems.A daily, weekly, monthly or annual internal audit assesses the effectiveness of a company’s internal control system and helps uncover evidence of fraud, waste or abuse.