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Explore dynamic office space in Ontario, California, where growth opportunities are abundant. From Downtown Ontario to Ontario Mills, our spaces cater to logistics, healthcare, and retail industries. Located near major transport hubs like Ontario International Airport, our vibrant community of innovators thrives in furnished offices, flexible workspaces, and executive suites.

Settle into a thoughtfully designed, private workspace that fosters focus and creativity. Every office is built to support your best work.
Customize your office space to match your team's style and workflow. Flexible arrangements adapt easily as your business evolves.
Benefit from seamless support services, ensuring your team can focus on the bigger picture. Our friendly professionals handle the details, from reception to tech support.
Join an energized community of professionals, with regular opportunities to network, collaborate, and grow.
Discover office spaces crafted for creativity and connection in Ontario












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Shape a space that fits your flow—smart, stylish, and built to elevate your workday.


Desks
Choose the right surface for how you work — from sit-stand desks to spacious executive setups, each option supports productivity and comfort.
Chairs
Stay supported all day with ergonomic seating. Adjustable features and lumbar support help keep focus high and strain low.
Meeting spaces
Add a spot for quick check-ins or in-depth discussions. Go formal with a boardroom table or keep it relaxed with a café-style setup.
Furniture options
Bring warmth and personality to your space with soft seating, greenery, and purposeful décor that supports both focus and downtime.
Storage
Keep your workspace organised with under-desk drawers, shelving, or secure cabinets — everything within reach, nothing in the way.
Find your ideal workspace, wherever work takes you.
Discover office space for rent in Ontario, a dynamic city in California, perfectly situated within the Inland Empire. Ontario's economic landscape offers a diverse and growing market with significant opportunities in logistics, warehousing, and more. Whether you're looking for a private office or a serviced office, Ontario provides a range of options to suit your business needs.
Ontario boasts several key commercial areas that are ideal for setting up your business. Downtown Ontario is a bustling hub with a mix of retail, dining, and office spaces, perfect for those who thrive in a vibrant environment. For those seeking executive office space in a retail-centric location, Ontario Mills offers proximity to one of California's largest shopping malls, ensuring a steady flow of foot traffic and potential clients. Additionally, the Guasti Regional Historic District combines historical charm with commercial development, making it an attractive location for businesses looking to blend tradition with modernity. From small office spaces to large office suites, Ontario's diverse locations cater to all business sizes and needs.
Ontario is strategically positioned near major transportation hubs, including Ontario International Airport and the Ontario Amtrak Station, ensuring seamless connectivity for business travel and logistics. The city's proximity to Interstates 10 and 15 facilitates easy road access, making it a prime choice for logistics and warehousing industries. For those in the healthcare sector, Kaiser Permanente Ontario Medical Center and San Antonio Regional Hospital are major employers, providing ample opportunities for businesses in the healthcare industry. Whether you need temporary office space or flexible workspace, Ontario's infrastructure supports various business models and growth trajectories.
Ontario offers a range of affordable office space options, ensuring that businesses of all sizes can find the perfect fit. From cheap office space to executive suites for rent, the city's office rental rates are competitive, allowing you to manage your budget effectively. If you require short term office space or month-to-month office arrangements, Ontario's flexible leasing options cater to your changing needs. Whether you need a move-in ready office or a custom office setup, Ontario provides scalable solutions that grow with your business. Explore shared office space or hybrid office space for a collaborative environment that fosters innovation and networking.
Ontario's energetic community is composed of forward thinkers, innovators, and game changers. Engage with like-minded individuals at professional events and enjoy the hospitality services that make Spaces feel like home. From part-time office solutions to office space by the day, Ontario's vibrant business ecosystem supports your journey towards success. Choose Ontario for your office space rental needs and immerse yourself in a city that combines sophisticated European design with a free-spirited vibe. Think, create, and collaborate in an environment that inspires growth and achievement. Rent office space in Ontario today and take the first step towards expanding your horizon.
Are small offices available in Ontario?
Yes — Spaces offers compact, ready-to-move-in offices designed for individuals and small teams.
These can be booked monthly, daily, or even by the hour.
Contact us to check availability and arrange a visit.
Are Spaces offices in Ontario fully serviced?
Yes — every Spaces office is fully serviced. That means utilities, cleaning, and maintenance are included, so you can focus on your work from day one.
Each office comes with:
Some locations in Ontario also feature extras such as:
Can I visit to see office space in person in Ontario?
Absolutely. Visiting in person is the best way to explore our workspaces before making a decision.
Book a tour online here, or give us a call. You’re welcome to view multiple locations in Ontario to find the perfect fit for your team.
Do you provide enterprise-scale workspace in Ontario?
We do — Spaces provides dedicated solutions for larger organizations across in Ontario and in the United States. Options include:
Our enterprise team can work with you to build a workspace strategy that’s scalable and future-proof. Please get in touch to learn more.
Do you require a minimum rental period?
No — there’s no strict minimum with Spaces. You can rent an office for just a few weeks or stay for years. Our flexible contracts let you adapt as your business grows, scale your space up or down, or even change locations when needed.
Is it possible to book an office just for one day in Ontario?
Yes — you can book an office by the day with Spaces’ flexible options. Alongside day offices, we also offer offices by the hour, meeting rooms, and coworking desks.
With 25 Spaces locations in Ontario, day office prices start from $ 95 per person per day.
Bookings can be made online for individuals or teams of any size. Need multiple offices for the same day? Please contact us to explore your options.
Should I book office space in Ontario in advance?
We recommend booking ahead if you need a specific size, setup, or location.
If you have a long-term office, you’re free to arrive and start work whenever you like. For Hourly Offices or Day Offices in Ontario, advance booking via the Spaces app, phone, or online ensures your spot is ready for you.
What are the costs for renting an office in Ontario?
Our office spaces in Ontario start from $ 7 per person each day, based on a 24-month contract. The cost depends on a number of factors — including size, location, number of people, contract length, and the amenities you choose. Premium offices, such as those with executive layouts, single-person studios, or city views, are generally priced higher per person.
For flexibility, you can also choose an Office Space All Access Plan — available for individuals and teams — giving you private office access for 5, 10, or unlimited days each month.
What if I need office space in more than one location in Ontario?
With Spaces, you’re never tied to one place. Our Office Space All Access Plan and Cowork All Access Plan let you book offices or coworking desks across in Ontario and the country.
Choose 5, 10, or unlimited days per month — perfect for teams that move between neighborhoods, cities, or even countries.
Which types of office space are available in Ontario?
Spaces offers a variety of flexible office solutions in Ontario, suitable for both individuals and teams. Choose from:
Every office can be customized to suit your business — from adding extra desks and storage to bespoke layouts and artwork.
We also offer Specialized Spaces, tailored for industries such as healthcare, media, technology, and energy.
Discover the Spaces range of offices, coworking desks, meeting rooms and virtual offices near you.
Los Angeles
north_eastInglewood
north_eastWestmont
north_eastSan Mateo
north_eastPlacentia
north_eastHayward
north_eastArtesia
north_eastCulver City
north_eastSanta Monica
north_eastSan Francisco
north_eastSan Diego
north_eastAnaheim
north_eastGardena
north_eastSimi Valley
north_eastPalmdale
north_eastBeverly Hills
north_eastNewport Beach
north_eastSan Lorenzo
north_eastEl Monte
north_eastEast Los Angeles
north_eastSanta Clara
north_eastEl Cerrito
north_eastGarden Grove
north_eastRiverside
north_eastSouth San Francisco
Still have questions? Contact us, we’re happy to help!
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3200 Guasti Road Suite 100, City of Ontario, CA, 91761, USA

3281 East Guasti Road 7th Floor, City of Ontario, CA, 91761, USA

3990 Concours 1st Floor, Ontario, CA, 91764, USA

204 North San Antonio Avenue, Ontario, CA, 91762, USA

980 W. 6th Street 1st & 2nd Floor, Ontario, CA, 91762, USA

21 Rancho Camino Dr East Legon, Pomona, CA, 91766, USA

11801 Pierce Street Turner Riverwalk, Suite 200, Riverside, CA, 92505, USA

1370 Valley Vista Drive Suite 200, Diamond Bar, CA, 91765, USA

3390 University Avenue, Riverside, CA, 92501, USA

135 South State College Boulevard Brea Campus, Suite 200, Brea, CA, 92821, USA

1050 Lakes Dr Suite 225, West Covina, CA, 91790, USA

715 N Arrowhead Ave 1st & 2nd Floor, San Bernardino, CA, 92401, USA