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    Ontario, CA Office Properties & Spaces for Lease

    59 results
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    Class A Office Space Available
    $7,937 / Mo
    2,995 SF

    Class A Office Space Available

    4200 Concours St, Ontario, CA 91764

    Premier Ontario Airport submarket location with freeway visibility.

    • Premiere Ontario Airport Submarket Location with Prominent I‑10 Freeway Visibility
    • Immediate Access to I‑10 at Haven Avenue
    • Move‑in Ready Suite (1,623 SF) with Reception Area, 2 Private Offices, Large Open Space, Break Room, & IT Room
    • Amazing Mountain View
    • Professionally Managed and Maintained Class A Office Building
    Updated: Nov 9, 2025
    View details
    Class A Office Space Available
    $4,328 / Mo
    1,633 SF

    Class A Office Space Available

    4200 Concours St, Ontario, CA 91764

    Move-in ready office space with mountain views in Ontario.

    • Premiere Ontario Airport Submarket Location
    • Prominent I‑10 Freeway Visibility
    • Immediate Access to I‑10 at Haven Avenue
    • Enjoy the mountain view from this move‑in ready suite.
    • Professionally Managed and Maintained Class A Office Building
    Updated: Nov 9, 2025
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    Modern Office Space Available
    $4,950 / Mo
    2,000 SF

    Modern Office Space Available

    First-floor office with reception, offices, conference rooms, kitchen, parking.

    3998 Inland Empire St, Ontario, CA 91764
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    Ontario Commercial Space with Warehouse
    $5,800 / Mo
    3,308 SF

    Ontario Commercial Space with Warehouse

    Renovated commercial space with offices and warehouse in Ontario.

    1115 S Grove Ave, Ontario, CA 91761
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    Ontario Commercial Space with Heavy Power
    $435,640
    33,003 SF

    Ontario Commercial Space with Heavy Power

    Industrial, manufacturing, warehouse & office space available for lease.

    4663 E Guasti Rd, Ontario, CA 91761
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    Centre Lake Plaza Executive Suites
    $31 SF/Yr
    114,259 SF

    Centre Lake Plaza Executive Suites

    Premium Ontario Airport Office Space Available

    3401 Centre Lake Dr, Ontario, CA 91761
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    Ontario Airport Business Center
    Contact for pricing
    414,962 SF

    Ontario Airport Business Center

    Flexible Office & Warehouse Space

    3950 Airport Dr, Ontario, CA 91761
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    Empire Towers II Executive Suites
    $31 SF/Yr
    70,040 SF

    Empire Towers II Executive Suites

    Premium Ontario Airport Office Space Available

    4141 Inland Empire Blvd, Ontario, CA 91764
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    Transpark Office Center Suites
    $29 SF/Yr
    203,076 SF

    Transpark Office Center Suites

    Executive office space in Ontario, CA. Multiple suites available.

    2910-2990 Inland Empire Blvd, Ontario, CA 91764
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    Ontario Industrial/Office Space
    Contact for pricing
    180,608 SF

    Ontario Industrial/Office Space

    Flexible Spaces, 300-50,000 SF

    740 Vintage Ave, Ontario, CA 91764
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    901 Via Piemonte: Class A Office Space
    $33 SF/Yr
    122,602 SF

    901 Via Piemonte: Class A Office Space

    Prestigious Ontario office suites; flexible sizes available.

    901 Via Piemonte, Ontario, CA 91764
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    Ontario Executive Office Suites
    $22 SF/Yr
    12,733 SF

    Ontario Executive Office Suites

    Modern Office Space, Panoramic Views

    3281 Guasti Rd, Ontario, CA 91761
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    Master Planned Logistics Park
    Contact for pricing
    926,100 SF

    Master Planned Logistics Park

    926,100 SF Warehouse/Office in Ontario

    610 Carnegie Ave, Ontario, CA 91761
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    Ontario Corporate Center: Premier Office Space
    $29 SF/Yr
    100,525 SF

    Ontario Corporate Center: Premier Office Space

    Executive Suites, 75,000+ SF Available

    430 Vineyard Ave, Ontario, CA 91764
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    Rochester Ave Warehouse Condo
    $21 SF/Yr
    7,062 SF

    Rochester Ave Warehouse Condo

    7,062 SF Industrial Condo For Lease

    840 Rochester Ave, Ontario, CA 91761
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    Ontario Executive Suites: Waterside Center
    $22 SF/Yr
    20,996 SF

    Ontario Executive Suites: Waterside Center

    Prestigious Ontario office space, flexible options.

    3200 Guasti Rd, Ontario, CA 91761
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    Ontario Airport Business Center
    Contact for pricing
    7,450 SF

    Ontario Airport Business Center

    Executive Suites & Warehouse Space Available

    285 Dupont St, Ontario, CA 91761
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    Ontario Airport Executive Suites
    $34 SF/Yr
    147,732 SF

    Ontario Airport Executive Suites

    Premium Office Space, 4 Suites Available

    2855 Guasti Rd, Ontario, CA 91761
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    One Lakeshore Centre: Ontario Office Space
    $31 SF/Yr
    176,813 SF

    One Lakeshore Centre: Ontario Office Space

    Class A Office Suites in Ontario Airport Submarket

    3281 Centre Lake Dr, Ontario, CA 91761
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    Empire Towers I: Class A Office Space
    $31 SF/Yr
    188,612 SF

    Empire Towers I: Class A Office Space

    Prime Ontario Airport Office Suites Available

    3633 Inland Empire Blvd, Ontario, CA 91764
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    Sixth Street Center Medical Office
    $22 SF/Yr
    62,797 SF

    Sixth Street Center Medical Office

    Prime Ontario Medical Office Space Available

    1131 6Th St, Ontario, CA 91762
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    Ontario Industrial/Office Flex Space
    $1.35 SF/Yr
    74,887 SF

    Ontario Industrial/Office Flex Space

    Industrial/office flex space available for lease in Ontario, CA.

    3100 Cedar St, Ontario, CA 91761
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    Downtown Ontario Restaurant/Office Space
    $2.00 SF/Yr
    9,759 SF

    Downtown Ontario Restaurant/Office Space

    Restaurant and professional office spaces for lease in Ontario.

    231 N Euclid Ave, Ontario, CA 91762
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    High Image Retail Unit
    $4 SF/Yr
    1,106 SF

    High Image Retail Unit

    Retail unit suitable for medical or beauty practices.

    3480 E Ontario Rnch Rd, Ontario, CA
    View details

    Ontario, CA Office Properties & Spaces Leasing Opportunities Market Analysis

    Explore Office Properties & Spaces leasing options in Ontario, CA with 90 listings featured on our commercial real estate exchange. The current inventory includes 78,375,547,800 square feet of properties with an estimated lease value of $436,164.

    Estimated lease rates for Office Properties & Spaces in Ontario, CA begin at $0.99 SF/Yr, with an average of $8,901 /Mo and extend to $435,640.
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    Browse Office Properties & Spaces for Lease Near Ontario, CA

    Popular Searches in Ontario, CA

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    Most Searched ZIP Codes in Ontario, CA

    • 91761
    • 91764
    • 91762
    • 91743
    • 91710

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