Apex Analytix, a provider of various software audit and performance software for Fortune 500 companies, is expanding its product offerings to include real estate lease audits.

Apex said the service was added at the request of clients, 30 of whom are among the Fortune 100.

The firm’s offerings include auditing services and software for contract compliance, sales and use taxes and escheatment review as well as software for preventing and capturing overpayments.

Apex Analytix: www.apexanalytix.com