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    Ontario, CA Office Units for Lease

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    119 properties
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    Professional Office Unit
    Professional Office Unit

    3281 E Guasti Rd Unit 200, Ontario, CA 91761

    $4,412/Mo
    1,665 sqft

    Second-floor workspace with private offices, a conference room, reception area, and workstation capacity under a full-service lease.

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    Office Unit with Private Offices
    Office Unit with Private Offices

    3401 Centre Lake Dr Unit 550, Ontario, CA 91761

    $10,947/Mo
    3,841 sqft

    Configured office suite in a professionally managed multi-story building with freeway access and on-site parking.

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    Class A Office Unit with Private Offices
    Class A Office Unit with Private Offices

    3281 E Guasti Rd Unit 750, Ontario, CA 91761

    $12,932/Mo
    4,880 sqft

    Configured office suite with private workrooms, conference space, break room, storage, and an open work area.

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    Move-In Ready Office Floor
    Move-In Ready Office Floor

    430 N Vineyard Ave Unit 303, Ontario, CA 91764

    $3,811/Mo
    1,337 sqft 3.81 AC lot

    Full-floor office suite in a five-story, multi-tenant building with secure access and ample parking.

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    Class A Office Unit
    Class A Office Unit

    3110 E Guasti Rd Unit 520, Ontario, CA 91761

    $13,610/Mo
    5,136 sqft

    Open-plan suite with a conference room, private office, breakroom, and cubicles.

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    Furnished Office Unit
    Furnished Office Unit

    3200 E Guasti Rd Unit 260, Ontario, CA 91764

    $10,131/Mo
    3,823 sqft

    Move-in-ready workspace with private offices, conference facilities, reception, storage, and on-site parking.

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    Class-A Office Space Available
    Class-A Office Space Available

    800 N Haven 250, Ontario, CA 91764

    $3,795/Mo
    1,549 sqft

    Professional office suite in a well-maintained, accessible location.

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    Class A Office Suite with Security
    Class A Office Suite with Security

    125-3450 Centre Lake Dr, Ontario, CA 91761

    $9,596/Mo
    176,813 sqft

    Suite 125 offers two offices and an open floor plan within a professionally managed Class A building.

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    Office Suite with Freeway Access
    Office Suite with Freeway Access

    4141 Inland Empire Boulevard 290, Ontario, CA 91764

    $6,983/Mo
    2,635 sqft

    Professional office suite with reception, conference room, private offices, breakroom, IT room, and open workspace.

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    Class A Office Space Available
    Class A Office Space Available

    3200 E Guasti Rd 260, Ontario, CA 91764

    $10,131/Mo
    3,823 sqft

    Move-in ready office space near Ontario Airport and I-10.

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    Office Unit with Private Offices
    Office Unit with Private Offices

    200-3281 E Guasti Rd, Ontario, CA 91761

    $4,412/Mo
    1,665 sqft

    Suite 200 offers reception, private offices, a conference room, and flexible workstation space.

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    Class A Office Space Available
    Class A Office Space Available

    750-3281 E Guasti Rd, Ontario, CA 91761

    $12,932/Mo
    4,880 sqft

    High-image office space near Ontario Airport with freeway access.

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    Class A Office Suite
    Class A Office Suite

    260-3200 E Guasti Rd, Ontario, CA 91761

    $10,131/Mo
    3,823 sqft

    Furnished 3,823 SF suite with four offices, reception, conference room, open space, IT room, and storage.

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    Office Suite with Conference Room
    Office Suite with Conference Room

    3633 Inland Empire Boulevard 890, Ontario, CA 91764

    $6,241/Mo
    2,355 sqft

    Move-in ready office suite with reception, multiple offices, and a large conference room in a Class A building.

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    Class A Office Space Available
    Class A Office Space Available

    4200 Concours Street 380, Ontario, CA 91764

    $7,937/Mo
    2,995 sqft

    Move-in ready office space with freeway visibility and covered parking.

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    Professional Office Building Near Airport
    Professional Office Building Near Airport

    3281 E Guasti Road 750, Ontario, CA 91761

    $12,932/Mo
    1,665 sqft

    Office suite available in a professionally managed building near I-10.

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    Office Suite with Conference Rooms
    Office Suite with Conference Rooms

    3990 Concours Unit 240, Ontario, CA 91764

    Contact for pricing
    11,317 sqft

    The suite offers a mix of private offices, meeting rooms, file storage, break space, and open work areas.

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    Freestanding Office Warehouse
    Freestanding Office Warehouse

    2340 Archibald Ave, Ontario, CA 91761

    Contact for pricing
    6,806 sqft

    Freestanding building with office space plus a fire-sprinklered warehouse featuring 16' clearance and a grade-level door.

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    Office Suite With Private Offices
    Office Suite With Private Offices

    3633 Inland Empire Blvd, Ontario, CA 91764

    Contact for pricing
    4,472 sqft

    Newly constructed office suite includes private offices, a large conference room, reception, and open cubicle area.

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    Office Suite with Four Offices
    Office Suite with Four Offices

    3401 Centre Lake Drive 236, Ontario, CA 91761

    $6,430/Mo

    Class A suite with four offices, storage, and open area in a secured building with parking and full-service gross leases.

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    Class A Office Suite
    Class A Office Suite

    248-3401 Centre Lake Dr, Ontario, CA 91761

    $4,318/Mo

    Suite 248 provides private offices, a conference room, storage, and an open work area within a managed building.

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    Class A Office Unit with I-10 Visibility
    Class A Office Unit with I-10 Visibility

    242-3401 Centre Lake Dr, Ontario, CA 91761

    $5,788/Mo

    Suite 242 includes private offices, storage, a breakroom, and open workspace.

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    Class A Office Suite
    Class A Office Suite

    236-3401 Centre Lake Dr, Ontario, CA 91761

    $6,430/Mo

    Suite 236 includes two small offices and two large open areas configured for training rooms.

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    Flex Office with 1 Grade-Level Door
    Flex Office with 1 Grade-Level Door

    2131 S Grove Ave, Ontario, CA 91761

    Contact for pricing
    3,228 sqft

    Flex office suite offering 16' clear height, 1 GL door, and 200-amp power in a multi-tenant building.

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