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About SEI Solutions SEI Solutions is headquartered in the Chicago Region and supports companies in all regions of the U.S. The company was formed from the merger of several experienced safety, environmental, and industrial service companies. These interrelated disciplines are crucial components of successful project design and execution in the

SEI Solutions LLC Questions

The SEI Solutions LLC annual revenue was $8.2 million in 2026.

SEI Solutions LLC is based in Chesterton, Indiana.

The NAICS codes for SEI Solutions LLC are [22, 561, 56].

The SIC codes for SEI Solutions LLC are [17, 49].

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