Browse Federal Contractors

Explore all 5,000 federal contractors with USAspending.gov award data

Large contractors are often registered in USAspending.gov's SAM.gov-linked recipient data under multiple legal-entity names and Unique Entity Identifiers (UEIs), one company can appear here as several separate rows (for example, a parent corporation and its individually-registered business segments). We show each registered entity as USAspending reports it rather than guessing which registrations belong to the same ultimate parent, so when sorting by Total Awards, a single well-known company's combined federal spending may be split across more than one row here.

According to USAspending.gov, maintained by the U.S. Department of the Treasury under the Digital Accountability and Transparency Act of 2014, this directory currently tracks the 5,000 top contractors by total obligation amount, see our methodology for the full source detail.

Contractor Name Total Awards
Siemens Aktiengesellschaft $63,472,867.24
Siemens Government Technologies Inc $142,305,413.31
Siemens Industry Inc $64,554,766.38
Siemens Industry Inc $64,554,766.38
Siemens Medical Solutions USA, Inc. $245,641,065.88
Sierra Lobo Inc $139,090,107.68
Sierra Lobo Inc $139,090,107.68
Sierra Nevada Company, LLC $2,201,441,889.11
Sierra Nevada Company, LLC $2,201,441,889.11
Sierra Nevada Company, LLC $349,957,793.66
Sierra Nevada Company, LLC $138,304,744.36
Sierra Nevada Corporation $349,410,638.2
Sierra Space Corp $122,594,817.71
Sierra7, Inc. $41,122,815.74
Sierra7, Inc. $41,122,815.74
Sig Sauer Inc. $270,029,648.97
Sig Sauer Inc. $270,029,648.97
Sigma Defense Systems LLC $141,130,584.82
Sigma Defense Systems LLC $141,130,584.82
Sigmatech Inc $74,735,067.95
Sigmatech, Inc. $74,735,067.95
Signature Aviation Limited $29,553,668.33
Signature Choice II, LLC $125,485,169.93
Signature Choice II, LLC $125,485,169.93
Signature Flight Support LLC $29,462,665.78
Signature Renovations Inc $28,337,811.53
Signature Renovations LLC $28,337,811.53
Significance Inc $28,979,910.25
Significance Inc $28,979,910.25
Sigo Valiant Jv II LLC $51,826,771
Sigo Valiant Jv II LLC $51,826,771
Sigo Valiant Jv LLC $29,541,529.31
Sigo Valiant Jv LLC $29,541,529.31
Sikich Cpa LLC $29,305,284.34
Sikich Cpa LLC $29,305,284.34
Sikich Federal Inc. $35,890,786.25
Sikorsky Aircraft Corporation $4,334,442,297.56
Siller Helicopters, LLC $37,515,495.1
Siller Helicopters, LLC $37,515,495.1
Simmons & Golden Security LLC $60,535,755.79
Simmons & Golden Security LLC $60,535,755.79
Simulation Technologies Inc $111,773,902.22
Simulation Technologies, Inc $111,773,902.22
Simventions Inc $75,430,375.72
Simventions Inc $75,430,375.72
Sintela Inc $68,912,352.32
Sintela Inc $68,912,352.32
Six Mile Nika Jv, LLC $52,595,885.07
Sk Energy Co., Ltd. $281,655,158.91
Sk Energy Co., Ltd. $281,655,158.91