Walter A. McDermott Telephone Auditing Service
  • Home
  • FAQs
  • Testimonials
  • Client List
  • Contact Us
(201) 445-3901
Close-up Of Shaking Hands

Walter A. McDermott Telephone Auditing Service’s Client List

Browse Walter A. McDermott Telephone Auditing Service’s client list in the New York Metropolitan Area today to discover the different businesses that have benefited from our telecom audit expertise. From businesses and schools to hotels, nonprofits, healthcare organizations, and financial firms, our diverse clientele spans a wide range of companies across different industries seeking billing accuracy and savings.

Some of Our Clients

Airline Stationery Atlantic Mutual Insurance Bank of Austria Creditanstalt Bank of Nova Scotia Bar Review-Barbri Barneys New York Bergdorf Goodman Beth Israel Medical Center Betsey Johnson Bill Blass Bozell True North Chase H&Q Chubb & Sons Circle Line Sightseeing CIT Group Congregation B'nai Jeshrun Costello Shea & Gaffney County of Ulster, NY Covenant House
Crohns & Colitis Foundation Dalton School District Council 1707-AFSME Economist Newspaper Group First American Title Insurance Gabelli Asset Management Gramercy Park Hotel Grand Hyatt Hotel Hebrew National Foods Helen Keller International Henry Street Settlement Horizon Healthcare of NY Insurance Information Institute International Rescue CommitteeKelley Drye Warren Kenneth Cole Productions Langdon P. Cook SecuritiesMetropolitan Opera Association Milbank Tweed Hadley & McCloy Moore Capital
Multex.com Museum of Natural History NY Hotel & Motel Trades Council NY Cruise Lines NY Law School NY Shipping Association Odyssey House Paragon Cable Paul Weiss Rifkin Wharton Planned Parenthood NYC Playbill Proskauer Rose Goetz & Mendelsohn Red & Tan Lines - Coach USA Refco Group Robb Peck McCooey S&P Comstock Sakura Capital Samuel A. Ramirez Sanofi San Carlos Hotel
Sheraton Hotels Shiseido Cosmetics Showboat Casino Hotel SONY Music South Street Museum St. Regis Hotel T&G Bridals Ticketmaster Time Out NY Trinity School Turkish Mission to the UN UNITE! United Cerebral Palsy United Federation of Teachers Visiting Nurse Assoc. of Brooklyn Westin Hotel White & Case Workmen's Circle Zabar’s
Walter A. McDermott Telephone Auditing Service
Home FAQs Testimonials Client List Contact Us
© 2026 Walter A. McDermott Telephone Auditing Service. All rights reserved. Website by Network Solutions.

We use cookies to enable essential functionality on our website and analyze website traffic. For more information, read our Cookies and Privacy Policy.

Your Cookie Settings

We use cookies to enable essential functionality on our website and analyze website traffic. For more information, read our Cookies and Privacy Policy.

Cookie Categories
Essential

These cookies are strictly necessary to provide you with services available through our websites.

Analytics

These cookies collect information that is used in aggregate and in an anonymized form to help us understand how our website is being used and how effectively our site is performing.