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Group and Event Travel in Oregon

Portland Marriott Downtown Waterfront in Portland leads the biggest hotels you can book in Oregon through Engine, with 506 rooms, ahead of Hilton Portland Downtown (455 rooms) and The Nines, a Luxury Collection Hotel, Portland (331 rooms), both also in Portland. Properties of this size let teams and groups book large room blocks for conferences and multi-day events in one location. This list makes it simple for a traveler or a colleague booking on their behalf to find the biggest hotels in Oregon by room count.

Large-capacity hotels matter across Oregon because corporate events, conferences, and group travel often require many rooms booked together rather than spread across smaller hotels. Oregon is known for its outdoor recreation industry, its technology and software companies, and a strong presence in sustainable manufacturing, each of which brings organizations that travel in groups. The largest hotels on this list are concentrated in Portland, and organizations of every size and industry booking room blocks can also find capacity across the state's other metros. Engine lists these properties alongside the rest of its Oregon inventory, and for a stay of 9 or more rooms, Engine Groups handles the booking, while smaller stays can be booked self-serve on the platform.

Showing 50 properties (sorted by distance)

Why no public rates?

Hotel partners contractually require business-email verification before showing the negotiated B2B rate. Hotel partners offer Engine exclusive business-traveler rates that aren't available to the public.

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Frequently asked questions

Can I book the biggest hotels in Oregon for just one or two travelers, or are they only for groups?
The largest hotels in Oregon work for both individual business travelers and groups. You can search and book properties like the Portland Marriott Downtown Waterfront or Hilton Portland Downtown for a single room or a full team stay. The same pre-negotiated rates and platform apply whether you're sending one person or twenty.
How does billing work if my company books rooms across Portland, Eugene, and other Oregon cities regularly?
Engine offers consolidated invoicing, so you receive one invoice covering bookings across multiple cities and properties in Oregon. You also have multiple payment options and no membership fee. This makes it easier to track spending and manage approvals when your team travels to different parts of the state.
What's the process for reserving a block of rooms at a large hotel in Oregon for a company meeting or training?
For a stay of 9 or more rooms, Engine Groups handles the booking. For 8 rooms or fewer, you book self-serve on the platform. Either way, you can search hotels by capacity, compare rates, and secure the rooms you need at properties across Oregon.
Which Oregon cities have the most large hotels for business travel?
Portland has the highest concentration of large hotels in Oregon. The three biggest properties you can book through Engine are all in Portland, including the Portland Marriott Downtown Waterfront with 506 rooms and the Hilton Portland Downtown with 455 rooms. Other cities in the state typically have smaller inventories.
What room count qualifies as one of the biggest hotels in Oregon?
In Oregon, the largest hotels you can book through Engine range from around 300 rooms up to just over 500. The Portland Marriott Downtown Waterfront leads the list with 506 rooms, followed by the Hilton Portland Downtown at 455 rooms and The Nines at 331 rooms. These properties offer the capacity needed for larger teams or events under one roof.

Biggest hotels in other states