There are many types of assurance services and what you need To know about them before you choose one The most common types of assurance services are audits, reviews, and inspections. Here is a brief overview of each:
Audits: Audits are conducted to ensure that an organization is complying with generally accepted accounting principles (GAAP). Audits can be performed by a third-party auditor, such as an independent registered public accounting firm (IRP), or by the organization's own internal audit staff. You can also look for auditing and assurance servicing through various online sources.
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Reviews: Reviews are conducted to assess whether an organization is meeting its contractual obligations, customer needs, and applicable standards. Reviews can be conducted by an independent reviewer, such as an independent evaluation consultant (IEC), or by the organization's own internal review staff.