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NAICS 541330 · Engineering Services

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Engineering firm in Ontario, CA

39 engineering firm in Ontario, CA; 1,211 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. David Evans and Associates, Inc.

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    CallAsk it
    Proof for David Evans and Associates, Inc.
    SAM.gov registration
    SAM.gov FK3YF6JDKBL5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jun 8, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Phone
    (909) 481-5750
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  2. Kleinfelder Inc

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    CallAsk it
    Proof for Kleinfelder Inc
    SAM.gov registration
    SAM.gov M9MWRH8L6N85
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jan 13, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Phone
    (909) 657-1716
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  3. Michael Baker International, Inc.

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    CallAsk it
    Proof for Michael Baker International, Inc.
    SAM.gov registration
    SAM.gov MXAETR1LQ6L9
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jan 22, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Phone
    (909) 974-4900
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  4. Swt Engineering Inc.

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    CallAsk it
    Proof for Swt Engineering Inc.
    SAM.gov registration
    SAM.gov XLRYU1CVAL69
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Apr 29, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Phone
    (909) 390-1328
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  5. Prosper Steel Detailing, Inc.

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    Ask it
    Proof for Prosper Steel Detailing, Inc.
    SAM.gov registration
    SAM.gov XMFZVMNLREU6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    May 22, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  6. Huitt-Zollars Inc

    ActiveCorporation registered in SAM.gov

    Ontario, CA

    Ask it
    Proof for Huitt-Zollars Inc
    SAM.gov registration
    SAM.gov Z4MFWV72FML6
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Mar 16, 2027
    Checked
    Oct 23, 2026
    Where
    Ontario, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  7. Acorn Industrial Corporation

    Engineering firm

    Ontario, CA

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    Proof for Acorn Industrial Corporation
    Where
    Ontario, CA · serves California
    Phone
    (626) 808-8827
    Listing
    Built from public records. Not claimed yet, so call them directly.

  8. Bisimoto Engineering

    Engineering firm

    Ontario, CA

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    Proof for Bisimoto Engineering
    Where
    Ontario, CA · serves California
    Phone
    (888) 922-6686
    Listing
    Built from public records. Not claimed yet, so call them directly.

  9. Ekyube Llc

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Ekyube Llc
    Where
    Ontario, CA · serves California
    Phone
    (844) 734-7571
    Listing
    Built from public records. Not claimed yet, so call them directly.

  10. Electrical Consultants, Inc.

    Engineering firm

    Ontario, CA

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    Proof for Electrical Consultants, Inc.
    Where
    Ontario, CA · serves California
    Phone
    (909) 315-7150
    Listing
    Built from public records. Not claimed yet, so call them directly.

  11. Garver

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Garver
    Where
    Ontario, CA · serves California
    Phone
    (951) 384-0989
    Listing
    Built from public records. Not claimed yet, so call them directly.

  12. Geologic Associates, Inc.

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Geologic Associates, Inc.
    Where
    Ontario, CA · serves California
    Phone
    (909) 626-2282
    Listing
    Built from public records. Not claimed yet, so call them directly.

  13. Group Delta, An Nv5 Company

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Group Delta, An Nv5 Company
    Where
    Ontario, CA · serves California
    Phone
    (909) 295-5550
    Listing
    Built from public records. Not claimed yet, so call them directly.

  14. Harris & Associates

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Harris & Associates
    Where
    Ontario, CA · serves California
    Phone
    (800) 827-4901
    Listing
    Built from public records. Not claimed yet, so call them directly.

  15. L.d. King Inc.

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for L.d. King Inc.
    Where
    Ontario, CA · serves California
    Phone
    (909) 945-0526
    Listing
    Built from public records. Not claimed yet, so call them directly.

  16. Lh Technical Llc

    Engineering firm

    Ontario, CA

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    Proof for Lh Technical Llc
    Where
    Ontario, CA · serves California
    Phone
    (909) 277-7500
    Listing
    Built from public records. Not claimed yet, so call them directly.

  17. Mulholland Consulting, Inc.

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Mulholland Consulting, Inc.
    Where
    Ontario, CA · serves California
    Phone
    (909) 654-5563
    Listing
    Built from public records. Not claimed yet, so call them directly.

  18. SCS Engineers, Ontario

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for SCS Engineers, Ontario
    Where
    Ontario, CA · serves California
    Phone
    (909) 373-2508
    Listing
    Built from public records. Not claimed yet, so call them directly.

  19. Smith Engineering

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Smith Engineering
    Where
    Ontario, CA · serves California
    Phone
    (909) 923-3331
    Listing
    Built from public records. Not claimed yet, so call them directly.

  20. Tranifilms Llc

    Engineering firm

    Ontario, CA

    CallAsk it
    Proof for Tranifilms Llc
    Where
    Ontario, CA · serves California
    Phone
    (951) 692-2879
    Listing
    Built from public records. Not claimed yet, so call them directly.

More cities in California

San Diego 640San Francisco 351Los Angeles 317Irvine 261San Jose 224Sacramento 168Oakland 124Santa Clara 110Santa Ana 95Pasadena 93Fresno 78Long Beach 78Anaheim 73Bakersfield 70Carlsbad 70Walnut Creek 70

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