DouxProcess Directory
Add to your AI

Ask for any business in the US.

NAICS 541330 · Engineering Services

you asked:

Engineering firm in Chicago, IL

343 engineering firm in Chicago, IL; 943 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. 360 Energy Group, LLC

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for 360 Energy Group, LLC
    SAM.gov registration
    SAM.gov HALQGL2R1PB9
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Feb 5, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (800) 401-0360
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  2. Alfred Benesch & CO

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Alfred Benesch & CO
    SAM.gov registration
    SAM.gov GEYJN659GK66
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jan 19, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 565-0450
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  3. Ardmore Roderick

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Ardmore Roderick
    SAM.gov registration
    SAM.gov TNN1JBYJGLS1
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Sep 3, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 795-1400
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  4. Ckl Engineers, LLC

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Ckl Engineers, LLC
    SAM.gov registration
    SAM.gov QKRDYXVGF865
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Dec 29, 2026
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 539-5256
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  5. Dbhms

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Dbhms
    SAM.gov registration
    SAM.gov Y34FMKJT62T8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 21, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 915-0557
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  6. Delta Engineering Group, LLC

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Delta Engineering Group, LLC
    SAM.gov registration
    SAM.gov S8DYX6LJFHD5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jun 23, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 377-7700
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  7. Environmental Design International, Inc.

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Environmental Design International, Inc.
    SAM.gov registration
    SAM.gov ZGNCLDX9QK21
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Nov 21, 2026
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 345-1400
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  8. Globetrotters Engineering Corp

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Globetrotters Engineering Corp
    SAM.gov registration
    SAM.gov YY49HRRQZTP4
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Sep 16, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 922-6400
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  9. Gloger Engineers Ltd

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Gloger Engineers Ltd
    SAM.gov registration
    SAM.gov R7MMZURN3QJ7
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Oct 1, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (773) 392-5674
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  10. Hbk Engineering LLC

    ActiveTax-exempt corporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Hbk Engineering LLC
    SAM.gov registration
    SAM.gov QK5FAN1C1Q43
    Issuer
    SAM.gov
    Status
    Active
    Class
    Tax-exempt corporation registered in SAM.gov
    Expires
    Jun 8, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 432-0076
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  11. Mcguire Engineers Inc

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Mcguire Engineers Inc
    SAM.gov registration
    SAM.gov P7ENXWY39BE3
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 5, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 876-9240
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  12. Perry & Associates, LLC

    ActivePartnership or limited liability partnership registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Perry & Associates, LLC
    SAM.gov registration
    SAM.gov XHEWJXPH6897
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Aug 19, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 364-9112
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  13. Primera Engineers Ltd

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Primera Engineers Ltd
    SAM.gov registration
    SAM.gov NZPCK4MD9NH6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jun 29, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 606-0910
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  14. Quandel Consultants LLC

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Quandel Consultants LLC
    SAM.gov registration
    SAM.gov C35FL59Q8CZ8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    May 6, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 634-6200
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  15. Rubinos and Mesia Engineers, Inc.

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Rubinos and Mesia Engineers, Inc.
    SAM.gov registration
    SAM.gov N26VS6TF6EM5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Apr 20, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 870-6600
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  16. Sargent & Lundy, L.L.C.

    ActivePartnership or limited liability partnership registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Sargent & Lundy, L.L.C.
    SAM.gov registration
    SAM.gov KLH5UMD4AZN8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Jan 15, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 269-2000
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  17. Servotech Inc

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Servotech Inc
    SAM.gov registration
    SAM.gov RSMFUPFJFN35
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 1, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 376-8103
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  18. Sigenics Inc

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Sigenics Inc
    SAM.gov registration
    SAM.gov LF7SCPV8MUS3
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Feb 3, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 448-8000
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  19. Singh & Associates Inc

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Singh & Associates Inc
    SAM.gov registration
    SAM.gov JAKQY4KVY784
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 13, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (312) 629-0240
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  20. Sunstream Scientific Incorporated

    ActiveCorporation registered in SAM.gov

    Chicago, IL

    CallAsk it
    Proof for Sunstream Scientific Incorporated
    SAM.gov registration
    SAM.gov HLZDELMLP857
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    May 12, 2027
    Checked
    Oct 23, 2026
    Where
    Chicago, IL · serves Illinois
    Phone
    (773) 728-8852
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

More cities in Illinois

Naperville 49Schaumburg 34Lisle 31Springfield 29Rockford 26Elk Grove Village 25Aurora 24Downers Grove 24Elgin 24Peoria 23Arlington Heights 16Northbrook 16St. Charles 16Champaign 15Lombard 15Oak Brook 14

Free for people · nobody pays to rank. Run one of these businesses? Claim it free.

Checked facts from public license files · How ranking works