Commercial Tenant Services, Inc.
Since 1987, CTS the premier Lease Audit firm to Fortune 500 companies.
http://www.ctsaudits.com/
CRS "The Lease Specialists"
National Lease Audit/Lease Administration Services. CRS ensures lease compliance for office and retail tenants to reduce occupancy costs by recovering lease related operating expense overcharges.
http://www.crslease.com