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Our Work

SQNA_Metra Fiber Optic Cable Installation 1

Metra Fiber Optic Cable Installation

Learn More about Metra Fiber Optic Cable Installation
SQNA_Metra UP Existing Sanding Upgrade 3

Metra UP Existing Sanding Upgrade

Learn More about Metra UP Existing Sanding Upgrade
SQNA Metra UP North Line Bridges 8

Metra UP North Line Bridges

Learn More about Metra UP North Line Bridges
SQNA_CSXT B&OCT CREATE B9 1

CSXT B&OCT CREATE B9 (Argo Connections)

Learn More about CSXT B&OCT CREATE B9 (Argo Connections)
SQNA NICTD Double Track NWI 2

NICTD Double Track NWI

Learn More about NICTD Double Track NWI
SQNA_NICTD WLC 5

NICTD West Lake Corridor

Learn More about NICTD West Lake Corridor
SQNA_Metra 95th and Riverdale Tie Station Conversion 6

Metra 95th and Riverdale Tie Station Conversion

Learn More about Metra 95th and Riverdale Tie Station Conversion
SQNA_Metra Z-100 Fox River Bridge 3

Metra Z-100 Fox River Bridge

Learn More about Metra Z-100 Fox River Bridge
SQN is certified as a Disadvantaged Business Enterprise (DBE) in Illinois, Indiana, and Georgia. We are also certified as a Minority Business Enterprise (MBE) by the City of Chicago, and as a Women’s Business Enterprise (WBE) by the City of Chicago and the Women’s Business Enterprise National Council (WBENC).
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