Exhibit 21

INTERACTIVE DATA CORPORATION SUBSIDIARIES

as of December 31, 2006

Subsidiary Name	State or country of incorporation or organization
Infotec Holdings Corp.	Delaware
Subsidiaries of Infotec Holdings Corp.
Infotec Capital Management Corporation FT Interactive Data Corporation	Delaware Delaware
Subsidiaries of FT Interactive Data Corporation
Exshare Financial, Inc. Interactive Data Canada, Inc. FT Information (Philippines) Inc.	Delaware Canada Philippines
IDCO Worldwide Holdings Ltd.	United Kingdom
Subsidiaries of IDCO Worldwide Holdings Ltd.
IDCO Overseas Capital Management Ltd. IDCO Overseas Holdings Ltd.	United Kingdom United Kingdom
Subsidiaries of IDCO Overseas Holdings Ltd.
Interactive Data (Australia) Pty Ltd. Interactive Data (Singapore) PTE Ltd. FT Interactive Data (Ireland) Ltd. FT Interactive Data (Jersey) Ltd. eSignal (Europe) Ltd. Interactive Data (Hong Kong) Ltd. Interactive Data Corporation France S.A.S. Interactive Data (Europe) Ltd.	Australia Singapore Ireland Channel Islands, UK United Kingdom Hong Kong, PRC France United Kingdom
Subsidiaries of Interactive Data (Europe) Ltd.
Exshare Financial (US) Ltd. Exshare Statistical Services Ltd. W & W Ltd. Exshare Computing Ltd.	United Kingdom United Kingdom United Kingdom United Kingdom
Subsidiary of Exshare Computing Ltd.
The Exchange Telegraph Company Ltd.	United Kingdom
Detective Nominees, Inc.	Delaware
GTIS Corporation	Delaware
Subsidiary of GTIS Corporation
GTIS Europe, Ltd.	United Kingdom
Comstock, Inc.	New York
BI Purchasing, Inc.	Utah
Checkrite International, Inc.	Utah
Subsidiary of Checkrite International, Inc.
Checkrite, Ltd.	Colorado
Subsidiaries of Checkrite, Ltd. Checkrite of California, Inc.	California

Checkrite of Minnesota, Inc. Checkrite of Oregon, Inc. Checkrite of Kansas City, Inc. Checkrite Oklahoma City, Inc.	Minnesota Oregon Kansas Oklahoma
CSN, Inc.	Utah
eSignal, Inc.	Delaware
eSignal.com, Inc.	Delaware
Bonneville Equipment Company	Utah
Shark Holdings, Inc.	Delaware
Data Broadcasting Corp.	British Virgin Isles
Interactive Data Managed Solutions, LLC Interactive Data Management & Services Verwaltung GmbH	Delaware Germany
Subsidiary of Interactive Data Management & Services, LLC and Interactive Data Management & Services Verwaltung GmbH
Interactive Data Management & Services GmbH & Co. K.G.	Germany
Subsidiaries of Interactive Data Management & Services GmbH & Co. K.G.
Interactive Data Managed Solutions Nordic Oy Interactive Data Managed Solutions AG	Finland Germany
Subsidiaries of IS.Teledata AG
Interactive Data Managed Solutions S.r.l. Interactive Data Managed Solutions S.L. Interactive Data Managed Solutions Ltd. Interactive Data Managed Solutions AG Interactive Data Managed Solutions SAS IS.Teledata MD Solutions France SAS	Italy Spain United Kingdom Switzerland France France