Clients
.
GSG personnel have provided services to:
  1. ABN AMRO
  2. Accenture
  3. Alcan Inc
  4. Allied Barton Security Services
  5. Alpha & Omega Services Inc.
  6. Amgen Inc.
  7. Aramark Corporation
  8. Artus Group Investigations
  9. ASIS International
  10. ATCO Reality
  11. Atomic Energy Canada Limited
  12. Barclays Capital
  13. Battery Park City Authority
  14. Beau Dietl & Associates
  15. Boston Scientific
  16. Brause Realty
  17. Brookfield Management
  18. Capital One
  19. Capital Properties
  20. Cardone Industries Inc.
  21. Cerberus Security Services LLC
  22. CharBroil Div WC Bradley Co
  23. Cooper Square Realty
  24. Cordis Corporation
  25. Corning Incorporated
  26. Disney ABC
  27. Diversified Security Solutions
  28. Ernst & Young
  29. Estee Lauder
  30. Exxon Mobil
  31. FCCJ
  32. Federal Reserve Bank of Kansas City
  33. Fidelity Investments
  34. Footlocker Inc.
  35. Fox Television Stations
  36. G-Holdings Corp.
  37. GE Healthcare
  38. GE Transportation
  39. General Electric
  40. Gerson Lehman
  41. Goldman Sachs
  42. Government of Canada
  43. Grant Thornton LLP
  44. Gray Hawk Systems
  45. Helen Mills Theatre
  46. Hitachi Global Storage Technologies
  47. Honeywell
  48. Hospira World Wide, Columbia University
  49. J & C Lamb
  50. Joseph P. Day
  51. JR Gettier & Associates
  52. Kenyon Realty
  53. Knights of Columbus
  54. Kroll Worldwide
  55. Kushner Properties
  56. Levy Security Corporation
  57. Lockheed Martin Corporation
  58. Machanda Law
  59. Majestic Properties
  60. MasterCard International
  61. Merrill Lynch
  62. Motorola
  63. Mylan Pharmaceuticals Inc.
  64. New 42nd Street Studios
  65. NYS Police
  66. Paramount
  67. Pfizer Inc.
  68. Protection One
  69. Prudential Financial
  70. Purdue Pharma
  71. Quebec Hydro
  72. Ralph Lauren
  73. Real Estate Board of New York
  74. Related Management
  75. Rose Associates Inc.
  76. Rudin Management Company
  77. S.L. Green
  78. SAC Capital
  79. Siemens Ultrasound
  80. Solectron Corporation
  81. Southern Poverty Law Center
  82. SSC, Inc.
  83. State Farm Insurance
  84. The government of Brunei Darussalam
  85. The government of Cambodia
  86. The government of Colombia
  87. The government of Ecuador
  88. The government of El Salvador
  89. The government of Georgia
  90. The government of India
  91. The government of Israel
  92. The government of Macao
  93. The government of Malta
  94. The government of Mexico
  95. The government of Peru
  96. The government of Russia
  97. The government of Singapore
  98. The Government of Thailand
  99. The government of the People's Republic of China
  100. The government of the territory of Hong Kong
  101. The government of the United States of America
  102. The government of Uzbekistan
  103. The Jewish Museum
  104. The Miami Metro-Dade SWAT team,
  105. The Nassau County Police Department
  106. The New York City Police Department, Emergency Services Unit
  107. The Suffolk county Police Department
  108. The U.S Department of State, Diplomatic Security Services Division
  109. The United States Marine Corps
  110. The US Park Police SWAT Team
  111. Tiffany & Co.
  112. Trebor Management
  113. Treeline Management
  114. US Marine Unit assigned to HMX-One, the President's Official Helicopter
  115. Van Andel Institute
  116. Virginia State Police
  117. Vornado Reality
  118. Waldman & Associates Investigations
  119. Walt Disney
  120. Westminster Management (New Puck Associates)
  121. William Wrigley Jr. Company
  122. Wisenberg & Wisenberg Law PLC
  123. WMC Associates
  124. World Security
  125. Worley Group
  126. Xerox Corporation
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