About This Deal

CACI INTERNATIONAL INC /DE/ acquired Six3 Systems, Inc. for $820 million, a transaction completed in November 2013, structured as all cash.

Six3 Systems, Inc. operates in Cyber / C4ISR / intelligence, is based in Arlington, Va. (CACI). Six3 Systems, acquired from private equity firm GTCR, is a premier provider of highly specialized support to the national security community in cyber and signals intelligence; intelligence, surveillance, and reconnaissance; and intelligence operations. The transaction expanded CACI's high-growth C4ISR and intelligence market opportunities by approximately $15 billion.

Acquisition adds distinctive cyberspace, C4ISR, and intelligence capabilities; projected to be at least 5 percent accretive to GAAP EPS in CY14 and to expand CACI's market opportunities by approximately $15 billion.

Six3 brought distinctive, highly cleared cyber, SIGINT and intelligence-operations capabilities and an estimated $15B expansion of addressable market. Expands CACI's high-growth cyberspace, C4ISR and intelligence capabilities; projected at least 5% GAAP EPS accretion in CY14. CACI intelligence / C4ISR operations

Deal Terms

Acquirer
CACI INTERNATIONAL INC /DE/
Target
Six3 Systems, Inc.
Value
$820 million
Date
November 2013
Type
Full acquisition
Status
Ready

Transaction Details

Target HQ
Arlington, Va. (CACI)
Segment
Cyber / C4ISR / intelligence
Structure
all cash
Announced
October 9, 2013
Closed
November 15, 2013
Synergies
Expands CACI's high-growth cyberspace, C4ISR and intelligence capabilities; projected at least 5% GAAP EPS accretion in CY14.

Advisors

Advisory firms were not disclosed for this transaction.

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Sources: Press release ↗ · SEC filing ↗ · Last updated June 11, 2026

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