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NAICS recipient rankings

Top recipient paths for NAICS 561621.

Use this ranking when the research starts with NAICS 561621 and you want the strongest contractor profiles attached to Security Systems Services (except Locksmiths) before widening into geography or PSC analysis.

NAICS recipient rankings

Top recipient paths for NAICS 561621

These ranked recipient pages are useful when you want a cleaner contractor-first entry point than the broader browse page.

1

Serco INC

Herndon, VA · Department of Defense

$1,004,172,019
2

Paragon Systems INC

Herndon, VA · Department of Homeland Security

$533,359,903
3

Olgoonik Global Security, Llc.

Anchorage, AK · Department of State

$460,890,539
4

Triple Canopy INC

Herndon, VA · Department of State

$370,722,968
5

M. C. Dean, Inc.

Tysons, VA · Department of Defense

$366,425,260
6

Centerra Group, LLC

Herndon, VA · Department of Energy

$305,938,174
7

Johnson Controls Building Automation Systems, LLC

Huntsville, AL · Department of Defense

$214,661,567
8

Alutiiq Global Solutions, LLC

Anchorage, AK · Department of Defense

$208,315,787
9

Chenega Global Protection, LLC

Chantilly, VA · National Aeronautics and Space Administration

$187,152,746
10

Siemens Government Technologies INC

Arlington, VA · Department of Defense

$111,989,171
11

Caddell Construction Co. (de), LLC

Montgomery, AL · Department of State

$56,701,173
12

The Whitestone Group, Inc.

Reynoldsburg, OH · Department of Transportation

$44,135,018
13

Advanced It Concepts, LLC

Orlando, FL · Department of Defense

$19,005,268
14

Olgoonik Solutions LLC

Anchorage, AK · Department of State

$17,097,482
15

Chenega Security International California

Chantilly, VA · Department of the Interior

$15,708,482
16

Chenega Security International, LLC

Chantilly, VA · Department of Defense

$14,093,569
17

Agency Management Concepts INC

Oakton, VA · Department of Defense

$2,993,604
18

Chenega Infinity, LLC

Chantilly, VA · Department of Homeland Security

$2,336,910
19

Alutiiq Advanced Security Solutions LLC

Anchorage, AK · Department of Homeland Security

$2,032,674
20

Venesco Construction Management LLC

Chantilly, VA · Department of State

$1,783,855
21

Alutiiq Business Services, LLC

Anchorage, AK · Department of Defense

$735,659
22

M.c. Dean Europe Gmbh

Leinfelden-echterdingen · Department of Defense

$174,057
23

Kratos Defense & Security Solutions, Inc.

San Diego, CA · Department of Homeland Security

$29,468

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