1 Report Overview 1.1 Study Scope 1.2 Market Analysis by Type 1.2.1 Global Encryption Key Management Market Size Growth Rate by Type: 2016 VS 2021 VS 2027 1.2.2 Folders/Files 1.2.3 SaaS App 1.3 Market by Application 1.3.1 Global Encryption Key Management Market Share by Application: 2016 VS 2021 VS 2027 1.3.2 Enterprise 1.3.3 Personal 1.4 Study Objectives 1.5 Years Considered 2 Global Growth Trends 2.1 Global Encryption Key Management Market Perspective (2016-2027) 2.2 Encryption Key Management Growth Trends by Regions 2.2.1 Encryption Key Management Market Size by Regions: 2016 VS 2021 VS 2027 2.2.2 Encryption Key Management Historic Market Share by Regions (2016-2021) 2.2.3 Encryption Key Management Forecasted Market Size by Regions (2022-2027) 2.3 Encryption Key Management Industry Dynamic 2.3.1 Encryption Key Management Market Trends 2.3.2 Encryption Key Management Market Drivers 2.3.3 Encryption Key Management Market Challenges 2.3.4 Encryption Key Management Market Restraints 3 Competition Landscape by Key Players 3.1 Global Top Encryption Key Management Players by Revenue 3.1.1 Global Top Encryption Key Management Players by Revenue (2016-2021) 3.1.2 Global Encryption Key Management Revenue Market Share by Players (2016-2021) 3.2 Global Encryption Key Management Market Share by Company Type (Tier 1, Tier 2 and Tier 3) 3.3 Players Covered: Ranking by Encryption Key Management Revenue 3.4 Global Encryption Key Management Market Concentration Ratio 3.4.1 Global Encryption Key Management Market Concentration Ratio (CR5 and HHI) 3.4.2 Global Top 10 and Top 5 Companies by Encryption Key Management Revenue in 2020 3.5 Encryption Key Management Key Players Head office and Area Served 3.6 Key Players Encryption Key Management Product Solution and Service 3.7 Date of Enter into Encryption Key Management Market 3.8 Mergers & Acquisitions, Expansion Plans 4 Encryption Key Management Breakdown Data by Type 4.1 Global Encryption Key Management Historic Market Size by Type (2016-2021) 4.2 Global Encryption Key Management Forecasted Market Size by Type (2022-2027) 5 Encryption Key Management Breakdown Data by Application 5.1 Global Encryption Key Management Historic Market Size by Application (2016-2021) 5.2 Global Encryption Key Management Forecasted Market Size by Application (2022-2027) 6 North America 6.1 North America Encryption Key Management Market Size (2016-2027) 6.2 North America Encryption Key Management Market Size by Type 6.2.1 North America Encryption Key Management Market Size by Type (2016-2021) 6.2.2 North America Encryption Key Management Market Size by Type (2022-2027) 6.2.3 North America Encryption Key Management Market Size by Type (2016-2027) 6.3 North America Encryption Key Management Market Size by Application 6.3.1 North America Encryption Key Management Market Size by Application (2016-2021) 6.3.2 North America Encryption Key Management Market Size by Application (2022-2027) 6.3.3 North America Encryption Key Management Market Size by Application (2016-2027) 6.4 North America Encryption Key Management Market Size by Country 6.4.1 North America Encryption Key Management Market Size by Country (2016-2021) 6.4.2 North America Encryption Key Management Market Size by Country (2022-2027) 6.4.3 United States 6.4.4 Canada 7 Europe 7.1 Europe Encryption Key Management Market Size (2016-2027) 7.2 Europe Encryption Key Management Market Size by Type 7.2.1 Europe Encryption Key Management Market Size by Type (2016-2021) 7.2.2 Europe Encryption Key Management Market Size by Type (2022-2027) 7.2.3 Europe Encryption Key Management Market Size by Type (2016-2027) 7.3 Europe Encryption Key Management Market Size by Application 7.3.1 Europe Encryption Key Management Market Size by Application (2016-2021) 7.3.2 Europe Encryption Key Management Market Size by Application (2022-2027) 7.3.3 Europe Encryption Key Management Market Size by Application (2016-2027) 7.4 Europe Encryption Key Management Market Size by Country 7.4.1 Europe Encryption Key Management Market Size by Country (2016-2021) 7.4.2 Europe Encryption Key Management Market Size by Country (2022-2027) 7.4.3 Germany 7.4.4 France 7.4.5 U.K. 7.4.6 Italy 7.4.7 Russia 7.4.8 Nordic 8 Asia-Pacific 8.1 Asia-Pacific Encryption Key Management Market Size (2016-2027) 8.2 Asia-Pacific Encryption Key Management Market Size by Type 8.2.1 Asia-Pacific Encryption Key Management Market Size by Type (2016-2021) 8.2.2 Asia-Pacific Encryption Key Management Market Size by Type (2022-2027) 8.2.3 Asia-Pacific Encryption Key Management Market Size by Type (2016-2027) 8.3 Asia-Pacific Encryption Key Management Market Size by Application 8.3.1 Asia-Pacific Encryption Key Management Market Size by Application (2016-2021) 8.3.2 Asia-Pacific Encryption Key Management Market Size by Application (2022-2027) 8.3.3 Asia-Pacific Encryption Key Management Market Size by Application (2016-2027) 8.4 Asia-Pacific Encryption Key Management Market Size by Region 8.4.1 Asia-Pacific Encryption Key Management Market Size by Region (2016-2021) 8.4.2 Asia-Pacific Encryption Key Management Market Size by Region (2022-2027) 8.4.3 China 8.4.4 Japan 8.4.5 South Korea 8.4.6 Southeast Asia 8.4.7 India 8.4.8 Australia 9 Latin America 9.1 Latin America Encryption Key Management Market Size (2016-2027) 9.2 Latin America Encryption Key Management Market Size by Type 9.2.1 Latin America Encryption Key Management Market Size by Type (2016-2021) 9.2.2 Latin America Encryption Key Management Market Size by Type (2022-2027) 9.2.3 Latin America Encryption Key Management Market Size by Type (2016-2027) 9.3 Latin America Encryption Key Management Market Size by Application 9.3.1 Latin America Encryption Key Management Market Size by Application (2016-2021) 9.3.2 Latin America Encryption Key Management Market Size by Application (2022-2027) 9.3.3 Latin America Encryption Key Management Market Size by Application (2016-2027) 9.4 Latin America Encryption Key Management Market Size by Country 9.4.1 Latin America Encryption Key Management Market Size by Country (2016-2021) 9.4.2 Latin America Encryption Key Management Market Size by Country (2022-2027) 9.4.3 Mexico 9.4.4 Brazil 10 Middle East & Africa 10.1 Middle East & Africa Encryption Key Management Market Size (2016-2027) 10.2 Middle East & Africa Encryption Key Management Market Size by Type 10.2.1 Middle East & Africa Encryption Key Management Market Size by Type (2016-2021) 10.2.2 Middle East & Africa Encryption Key Management Market Size by Type (2022-2027) 10.2.3 Middle East & Africa Encryption Key Management Market Size by Type (2016-2027) 10.3 Middle East & Africa Encryption Key Management Market Size by Application 10.3.1 Middle East & Africa Encryption Key Management Market Size by Application (2016-2021) 10.3.2 Middle East & Africa Encryption Key Management Market Size by Application (2022-2027) 10.3.3 Middle East & Africa Encryption Key Management Market Size by Application (2016-2027) 10.4 Middle East & Africa Encryption Key Management Market Size by Country 10.4.1 Middle East & Africa Encryption Key Management Market Size by Country (2016-2021) 10.4.2 Middle East & Africa Encryption Key Management Market Size by Country (2022-2027) 10.4.3 Turkey 10.4.4 Saudi Arabia 10.4.5 UAE 11 Key Players Profiles 11.1 Thales Group 11.1.1 Thales Group Company Details 11.1.2 Thales Group Business Overview 11.1.3 Thales Group Encryption Key Management Introduction 11.1.4 Thales Group Revenue in Encryption Key Management Business (2016-2021) 11.1.5 Thales Group Recent Development 11.2 IBM 11.2.1 IBM Company Details 11.2.2 IBM Business Overview 11.2.3 IBM Encryption Key Management Introduction 11.2.4 IBM Revenue in Encryption Key Management Business (2016-2021) 11.2.5 IBM Recent Development 11.3 Egnyte 11.3.1 Egnyte Company Details 11.3.2 Egnyte Business Overview 11.3.3 Egnyte Encryption Key Management Introduction 11.3.4 Egnyte Revenue in Encryption Key Management Business (2016-2021) 11.3.5 Egnyte Recent Development 11.4 Google 11.4.1 Google Company Details 11.4.2 Google Business Overview 11.4.3 Google Encryption Key Management Introduction 11.4.4 Google Revenue in Encryption Key Management Business (2016-2021) 11.4.5 Google Recent Development 11.5 Alibaba Cloud Computing 11.5.1 Alibaba Cloud Computing Company Details 11.5.2 Alibaba Cloud Computing Business Overview 11.5.3 Alibaba Cloud Computing Encryption Key Management Introduction 11.5.4 Alibaba Cloud Computing Revenue in Encryption Key Management Business (2016-2021) 11.5.5 Alibaba Cloud Computing Recent Development 11.6 Box 11.6.1 Box Company Details 11.6.2 Box Business Overview 11.6.3 Box Encryption Key Management Introduction 11.6.4 Box Revenue in Encryption Key Management Business (2016-2021) 11.6.5 Box Recent Development 11.7 Amazon 11.7.1 Amazon Company Details 11.7.2 Amazon Business Overview 11.7.3 Amazon Encryption Key Management Introduction 11.7.4 Amazon Revenue in Encryption Key Management Business (2016-2021) 11.7.5 Amazon Recent Development 11.8 Ciphercloud 11.8.1 Ciphercloud Company Details 11.8.2 Ciphercloud Business Overview 11.8.3 Ciphercloud Encryption Key Management Introduction 11.8.4 Ciphercloud Revenue in Encryption Key Management Business (2016-2021) 11.8.5 Ciphercloud Recent Development 11.9 Unbound Tech 11.9.1 Unbound Tech Company Details 11.9.2 Unbound Tech Business Overview 11.9.3 Unbound Tech Encryption Key Management Introduction 11.9.4 Unbound Tech Revenue in Encryption Key Management Business (2016-2021) 11.9.5 Unbound Tech Recent Development 11.10 Keynexus 11.10.1 Keynexus Company Details 11.10.2 Keynexus Business Overview 11.10.3 Keynexus Encryption Key Management Introduction 11.10.4 Keynexus Revenue in Encryption Key Management Business (2016-2021) 11.10.5 Keynexus Recent Development 12 Analyst's Viewpoints/Conclusions 13 Appendix 13.1 Research Methodology 13.1.1 Methodology/Research Approach 13.1.2 Data Source 13.2 Disclaimer 13.3 Author Details

List of Tables Table 1. Global Encryption Key Management Market Size Growth Rate by Type (US$ Million):2016 VS 2021 VS 2027 Table 2. Key Players of Folders/Files Table 3. Key Players of SaaS App Table 4. Global Encryption Key Management Market Size Growth by Application (US$ Million): 2016 VS 2021 VS 2027 Table 5. Global Encryption Key Management Market Size by Regions (US$ Million): 2016 VS 2021 VS 2027 Table 6. Global Encryption Key Management Market Size by Regions (2016-2021) & (US$ Million) Table 7. Global Encryption Key Management Market Share by Regions (2016-2021) Table 8. Global Encryption Key Management Forecasted Market Size by Regions (2022-2027) & (US$ Million) Table 9. Global Encryption Key Management Market Share by Regions (2022-2027) Table 10. Encryption Key Management Market Trends Table 11. Encryption Key Management Market Drivers Table 12. Encryption Key Management Market Challenges Table 13. Encryption Key Management Market Restraints Table 14. Global Encryption Key Management Revenue by Players (2016-2021) & (US$ Million) Table 15. Global Encryption Key Management Market Share by Players (2016-2021) Table 16. Global Top Encryption Key Management Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in Encryption Key Management as of 2020) Table 17. Ranking of Global Top Encryption Key Management Companies by Revenue (US$ Million) in 2020 Table 18. Global 5 Largest Players Market Share by Encryption Key Management Revenue (CR5 and HHI) & (2016-2021) Table 19. Key Players Headquarters and Area Served Table 20. Key Players Encryption Key Management Product Solution and Service Table 21. Date of Enter into Encryption Key Management Market Table 22. Mergers & Acquisitions, Expansion Plans Table 23. Global Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 24. Global Encryption Key Management Revenue Market Share by Type (2016-2021) Table 25. Global Encryption Key Management Forecasted Market Size by Type (2022-2027) (US$ Million) Table 26. Global Encryption Key Management Revenue Market Share by Type (2022-2027) & (US$ Million) Table 27. Global Encryption Key Management Market Size Share by Application (2016-2021) & (US$ Million) Table 28. Global Encryption Key Management Revenue Market Share by Application (2016-2021) Table 29. Global Encryption Key Management Forecasted Market Size by Application (2022-2027) (US$ Million) Table 30. Global Encryption Key Management Revenue Market Share by Application (2022-2027) & (US$ Million) Table 31. North America Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 32. North America Encryption Key Management Market Size by Type (2022-2027) & (US$ Million) Table 33. North America Encryption Key Management Market Size by Application (2016-2021) (US$ Million) Table 34. North America Encryption Key Management Market Size by Application (2022-2027) & (US$ Million) Table 35. North America Encryption Key Management Market Size by Country (2016-2021) & (US$ Million) Table 36. North America Encryption Key Management Market Size by Country (2022-2027) & (US$ Million) Table 37. Europe Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 38. Europe Encryption Key Management Market Size by Type (2022-2027) & (US$ Million) Table 39. Europe Encryption Key Management Market Size by Application (2016-2021) (US$ Million) Table 40. Europe Encryption Key Management Market Size by Application (2022-2027) & (US$ Million) Table 41. Europe Encryption Key Management Market Size by Country (2016-2021) & (US$ Million) Table 42. Europe Encryption Key Management Market Size by Country (2022-2027) & (US$ Million) Table 43. Asia-Pacific Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 44. Asia-Pacific Encryption Key Management Market Size by Type (2022-2027) & (US$ Million) Table 45. Asia-Pacific Encryption Key Management Market Size by Application (2016-2021) (US$ Million) Table 46. Asia-Pacific Encryption Key Management Market Size by Application (2022-2027) & (US$ Million) Table 47. Asia-Pacific Encryption Key Management Market Size by Region (2016-2021) & (US$ Million) Table 48. Asia-Pacific Encryption Key Management Market Size by Region (2022-2027) & (US$ Million) Table 49. Latin America Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 50. Latin America Encryption Key Management Market Size by Type (2022-2027) & (US$ Million) Table 51. Latin America Encryption Key Management Market Size by Application (2016-2021) (US$ Million) Table 52. Latin America Encryption Key Management Market Size by Application (2022-2027) & (US$ Million) Table 53. Latin America Encryption Key Management Market Size by Country (2016-2021) & (US$ Million) Table 54. Latin America Encryption Key Management Market Size by Country (2022-2027) & (US$ Million) Table 55. Middle East & Africa Encryption Key Management Market Size by Type (2016-2021) (US$ Million) Table 56. Middle East & Africa Encryption Key Management Market Size by Type (2022-2027) & (US$ Million) Table 57. Middle East & Africa Encryption Key Management Market Size by Application (2016-2021) (US$ Million) Table 58. Middle East & Africa Encryption Key Management Market Size by Application (2022-2027) & (US$ Million) Table 59. Middle East & Africa Encryption Key Management Market Size by Country (2016-2021) & (US$ Million) Table 60. Middle East & Africa Encryption Key Management Market Size by Country (2022-2027) & (US$ Million) Table 61. Thales Group Company Details Table 62. Thales Group Business Overview Table 63. Thales Group Encryption Key Management Product Table 64. Thales Group Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 65. Thales Group Recent Development Table 66. IBM Company Details Table 67. IBM Business Overview Table 68. IBM Encryption Key Management Product Table 69. IBM Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 70. IBM Recent Development Table 71. Egnyte Company Details Table 72. Egnyte Business Overview Table 73. Egnyte Encryption Key Management Product Table 74. Egnyte Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 75. Egnyte Recent Development Table 76. Google Company Details Table 77. Google Business Overview Table 78. Google Encryption Key Management Product Table 79. Google Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 80. Google Recent Development Table 81. Alibaba Cloud Computing Company Details Table 82. Alibaba Cloud Computing Business Overview Table 83. Alibaba Cloud Computing Encryption Key Management Product Table 84. Alibaba Cloud Computing Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 85. Alibaba Cloud Computing Recent Development Table 86. Box Company Details Table 87. Box Business Overview Table 88. Box Encryption Key Management Product Table 89. Box Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 90. Box Recent Development Table 91. Amazon Company Details Table 92. Amazon Business Overview Table 93. Amazon Encryption Key Management Product Table 94. Amazon Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 95. Amazon Recent Development Table 96. Ciphercloud Company Details Table 97. Ciphercloud Business Overview Table 98. Ciphercloud Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 99. Ciphercloud Recent Development Table 100. Unbound Tech Company Details Table 101. Unbound Tech Business Overview Table 102. Unbound Tech Encryption Key Management Product Table 103. Unbound Tech Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 104. Unbound Tech Recent Development Table 105. Keynexus Company Details Table 106. Keynexus Business Overview Table 107. Keynexus Encryption Key Management Product Table 108. Keynexus Revenue in Encryption Key Management Business (2016-2021) & (US$ Million) Table 109. Keynexus Recent Development Table 110. Research Programs/Design for This Report Table 111. Key Data Information from Secondary Sources Table 112. Key Data Information from Primary Sources List of Figures Figure 1. Global Encryption Key Management Market Share by Type: 2020 VS 2027 Figure 2. Folders/Files Features Figure 3. SaaS App Features Figure 4. Global Encryption Key Management Market Share by Application: 2020 VS 2027 Figure 5. Enterprise Case Studies Figure 6. Personal Case Studies Figure 7. Encryption Key Management Report Years Considered Figure 8. Global Encryption Key Management Market Size (US$ Million), Year-over-Year: 2016-2027 Figure 9. Global Encryption Key Management Market Size (US$ Million), 2016 VS 2021 VS 2027 Figure 10. Global Encryption Key Management Market Share by Regions: 2020 VS 2027 Figure 11. Global Encryption Key Management Market Share by Regions (2022-2027) Figure 12. Global Encryption Key Management Market Share by Players in 2020 Figure 13. Global Top Encryption Key Management Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in Encryption Key Management as of 2020 Figure 14. The Top 10 and 5 Players Market Share by Encryption Key Management Revenue in 2020 Figure 15. Global Encryption Key Management Revenue Market Share by Type (2016-2021) Figure 16. Global Encryption Key Management Revenue Market Share by Type (2022-2027) Figure 17. North America Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 18. North America Encryption Key Management Market Share by Type (2016-2027) Figure 19. North America Encryption Key Management Market Share by Application (2016-2027) Figure 20. North America Encryption Key Management Market Share by Country (2016-2027) Figure 21. United States Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 22. Canada Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 23. Europe Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 24. Europe Encryption Key Management Market Share by Type (2016-2027) Figure 25. Europe Encryption Key Management Market Share by Application (2016-2027) Figure 26. Europe Encryption Key Management Market Share by Country (2016-2027) Figure 27. Germany Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 28. France Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 29. U.K. Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 30. Italy Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 31. Russia Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 32. Nordic Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 33. Asia-Pacific Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 34. Asia-Pacific Encryption Key Management Market Share by Type (2016-2027) Figure 35. Asia-Pacific Encryption Key Management Market Share by Application (2016-2027) Figure 36. Asia-Pacific Encryption Key Management Market Share by Region (2016-2027) Figure 37. China Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 38. Japan Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 39. South Korea Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 40. Southeast Asia Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 41. India Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 42. Australia Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 43. Latin America Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 44. Latin America Encryption Key Management Market Share by Type (2016-2027) Figure 45. Latin America Encryption Key Management Market Share by Application (2016-2027) Figure 46. Latin America Encryption Key Management Market Share by Country (2016-2027) Figure 47. Mexico Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 48. Brazil Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 49. Middle East & Africa Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 50. Middle East & Africa Encryption Key Management Market Share by Type (2016-2027) Figure 51. Middle East & Africa Encryption Key Management Market Share by Application (2016-2027) Figure 52. Middle East & Africa Encryption Key Management Market Share by Country (2016-2027) Figure 53. Turkey Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 54. Saudi Arabia Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 55. UAE Encryption Key Management Market Size YoY Growth (2016-2027) & (US$ Million) Figure 56. Thales Group Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 57. IBM Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 58. Egnyte Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 59. Google Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 60. Alibaba Cloud Computing Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 61. Box Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 62. Amazon Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 63. Ciphercloud Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 64. Unbound Tech Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 65. Keynexus Revenue Growth Rate in Encryption Key Management Business (2016-2021) Figure 66. Bottom-up and Top-down Approaches for This Report Figure 67. Data Triangulation Figure 68. Key Executives Interviewed

Thales Group IBM Egnyte Google Alibaba Cloud Computing Box Amazon Ciphercloud Unbound Tech Keynexus