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NAICS 541330 · Engineering Services

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Engineering firm in Castle Rock, CO

7 engineering firm in Castle Rock, CO; 329 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. Diexsys LLC, Engineering

    ActivePartnership or limited liability partnership registered in SAM.gov

    Castle Rock, CO

    Ask it
    Proof for Diexsys LLC, Engineering
    SAM.gov registration
    SAM.gov J88SFM6GM7K8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Aug 20, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  2. Madfox LLC

    ActivePartnership or limited liability partnership registered in SAM.gov

    Castle Rock, CO

    Ask it
    Proof for Madfox LLC
    SAM.gov registration
    SAM.gov WS5YKM179YK6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Aug 13, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  3. Mountain Aim Consulting LLC

    ActiveSole proprietorship registered in SAM.gov

    Castle Rock, CO

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    Proof for Mountain Aim Consulting LLC
    SAM.gov registration
    SAM.gov F4MGHSK83FN8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Sole proprietorship registered in SAM.gov
    Expires
    May 9, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  4. Qualcorr Engineering Corp.

    ActiveCorporation registered in SAM.gov

    Castle Rock, CO

    Ask it
    Proof for Qualcorr Engineering Corp.
    SAM.gov registration
    SAM.gov KJJVEF8LW4J6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Feb 13, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  5. T5C Solutions LLC

    ActiveSole proprietorship registered in SAM.gov

    Castle Rock, CO

    Ask it
    Proof for T5C Solutions LLC
    SAM.gov registration
    SAM.gov CKXTKSTU3H31
    Issuer
    SAM.gov
    Status
    Active
    Class
    Sole proprietorship registered in SAM.gov
    Expires
    May 16, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  6. Zarcadia Systems Corporation

    ActiveCorporation registered in SAM.gov

    Castle Rock, CO

    Ask it
    Proof for Zarcadia Systems Corporation
    SAM.gov registration
    SAM.gov FUHKGNR9GFN6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 8, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  7. Romashka Consulting

    ActiveOther organization registered in SAM.gov

    Castle Rock, CO

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    Proof for Romashka Consulting
    SAM.gov registration
    SAM.gov RQRRBV5PLQS7
    Issuer
    SAM.gov
    Status
    Active
    Class
    Other organization registered in SAM.gov
    Expires
    Dec 18, 2026
    Checked
    Oct 23, 2026
    Where
    Castle Rock, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  8. Blue Shark Aerospace, LLC

    ActiveCorporation registered in SAM.gov

    Castle Pines, CO · 5 mi away

    Ask it
    Proof for Blue Shark Aerospace, LLC
    SAM.gov registration
    SAM.gov CLHNY8W9NVB7
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Sep 24, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Pines, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  9. K2 Civil Consultants Inc

    ActiveCorporation registered in SAM.gov

    Castle Pines, CO · 5 mi away

    Ask it
    Proof for K2 Civil Consultants Inc
    SAM.gov registration
    SAM.gov LGNXSQKCC6W6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 20, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Pines, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  10. Wilcar Consulting LLC

    ActiveCorporation registered in SAM.gov

    Castle Pines, CO · 5 mi away

    Ask it
    Proof for Wilcar Consulting LLC
    SAM.gov registration
    SAM.gov MZJ4MQ9KM2H8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 8, 2027
    Checked
    Oct 23, 2026
    Where
    Castle Pines, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  11. Hawkings Austin LLC

    ActiveSole proprietorship registered in SAM.gov

    Parker, CO · 8 mi away

    Ask it
    Proof for Hawkings Austin LLC
    SAM.gov registration
    SAM.gov U3TLGL5DDCD3
    Issuer
    SAM.gov
    Status
    Active
    Class
    Sole proprietorship registered in SAM.gov
    Expires
    Mar 26, 2027
    Checked
    Oct 23, 2026
    Where
    Parker, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  12. Space Development Ventures LLC

    ActivePartnership or limited liability partnership registered in SAM.gov

    Parker, CO · 8 mi away

    Ask it
    Proof for Space Development Ventures LLC
    SAM.gov registration
    SAM.gov MDN1ZJXTQAT1
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Mar 26, 2027
    Checked
    Oct 23, 2026
    Where
    Parker, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  13. Ha Reynolds & Associates, Inc

    ActiveSole proprietorship registered in SAM.gov

    Parker, CO · 8 mi away

    Ask it
    Proof for Ha Reynolds & Associates, Inc
    SAM.gov registration
    SAM.gov G6FKTHW6Q837
    Issuer
    SAM.gov
    Status
    Active
    Class
    Sole proprietorship registered in SAM.gov
    Expires
    Jul 13, 2027
    Checked
    Oct 23, 2026
    Where
    Parker, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  14. 4Site Advisors Inc, 4Site Advisors, Inc.

    ActiveCorporation registered in SAM.gov

    Centennial, CO · 14 mi away

    Ask it
    Proof for 4Site Advisors Inc, 4Site Advisors, Inc.
    SAM.gov registration
    SAM.gov Q4YWA4CLDQS5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Feb 3, 2027
    Checked
    Oct 23, 2026
    Where
    Centennial, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  15. Aei Systems, Inc.

    ActiveCorporation registered in SAM.gov

    Centennial, CO · 14 mi away

    Ask it
    Proof for Aei Systems, Inc.
    SAM.gov registration
    SAM.gov GMGXJM143Q23
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jun 10, 2027
    Checked
    Oct 23, 2026
    Where
    Centennial, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  16. Aes-Atkinsrealis JV

    ActivePartnership or limited liability partnership registered in SAM.gov

    Parker, CO · 14 mi away

    Ask it
    Proof for Aes-Atkinsrealis JV
    SAM.gov registration
    SAM.gov W35DAJH9BMD7
    Issuer
    SAM.gov
    Status
    Active
    Class
    Partnership or limited liability partnership registered in SAM.gov
    Expires
    Aug 19, 2027
    Checked
    Oct 23, 2026
    Where
    Parker, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  17. Aes Group Inc

    ActiveCorporation registered in SAM.gov

    Parker, CO · 14 mi away

    Ask it
    Proof for Aes Group Inc
    SAM.gov registration
    SAM.gov KXGTQ3BY1XB8
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 24, 2027
    Checked
    Oct 23, 2026
    Where
    Parker, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  18. Aircraft Performance Group LLC

    ActiveCorporation registered in SAM.gov

    Lone Tree, CO · 11 mi away

    Ask it
    Proof for Aircraft Performance Group LLC
    SAM.gov registration
    SAM.gov JMR6MM8SCNH9
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jan 19, 2027
    Checked
    Oct 23, 2026
    Where
    Lone Tree, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  19. Amentum Environment & Energy, Inc.

    ActiveCorporation registered in SAM.gov

    Englewood, CO · 14 mi away

    Ask it
    Proof for Amentum Environment & Energy, Inc.
    SAM.gov registration
    SAM.gov VQZQH9HX2YH1
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 16, 2027
    Checked
    Oct 23, 2026
    Where
    Englewood, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  20. Arcadis U.S., Inc.

    ActiveCorporation registered in SAM.gov

    Highlands Ranch, CO · 15 mi away

    Ask it
    Proof for Arcadis U.S., Inc.
    SAM.gov registration
    SAM.gov MNG1DTKJ1LZ3
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 4, 2027
    Checked
    Oct 23, 2026
    Where
    Highlands Ranch, CO · serves Colorado
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

More cities in Colorado

Denver 113Colorado Springs 111Lakewood 31Aurora 26Boulder 24Centennial 22Fort Collins 21Greenwood Village 19Highlands Ranch 18Littleton 18Englewood 15Golden 14Grand Junction 14Arvada 13Broomfield 12Longmont 11

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