| DSS Operating Valve Company ( Troy, MI ) | DST Innovis, Inc. ( El Dorado Hills, CA ) | DST Siemens Diesel Systems Technology LLC ( Blythewood, SC ) |
| DSSDR, LLC | DST Output ( El Dorado Hills, CA ) | DST Systems Inc. ( Kansas City, MO ) |
| DSSDR, LLC ( Rockville, MD ) | DST Output of California, Inc. ( El Dorado Hills, CA ) | DSTL, Porton Down |
| DST Consulting Engineers Inc.( Thunder Bay ) | DST Output, Inc. ( El Dorado Hills, CA ) | DSTWO Technology Corp. ( Taipei, TW ) |