Below are well-known New York City hotels that offer private-event hosting (ballrooms, private‑dining rooms, rooftop buyouts, boardrooms, screening rooms, etc.), with quick notes on space types and typical capacities so you can match a venue to your event size and style.

• New York Marriott Marquis (Times Square) — Huge meetings/conference hotel with dozens of meeting rooms and a largest-capacity Broadway Ballroom (largest spaces hold ~2,800). Best for large conferences, trade events, gala dinners. (marriott.com)

• The Plaza (Fifth Avenue / Central Park) — Iconic luxury hotel with multiple ballrooms and private rooms (Grand Ballroom, Terrace Room, Rose Club) that accommodate intimate dinners to several-hundred guest galas. Best for classic/formal weddings and high‑end receptions. (theplazany.com)

• Four Seasons New York (Midtown & Downtown properties) — Luxury meeting rooms and ballrooms across its properties; flexible function rooms and in‑house planning/catering for groups from boardroom size up to several-hundred. Good for upscale corporate events and private buyouts. (fourseasons.com)

• The St. Regis New York (Midtown) — Historic luxury hotel with ~16 event spaces (ballroom, boardrooms, private dining rooms); suited for refined private dinners, weddings, and executive meetings. (marriott.com)

• The Ritz‑Carlton, New York, NoMad — Multiple indoor/outdoor spaces (ballroom, terrace, boardroom) and rooftop venues; largest rooms host a few hundred guests. Popular for weddings and upscale hospitality events. (ritzcarlton.com)

• Mandarin Oriental, New York (Columbus Circle) — Large, column‑free Mandarin Ballroom (Central Park views) plus boardrooms and private dining — used for 150–500 guest events as well as smaller executive meetings. (mandarinoriental.com)

• The Beekman, A Thompson Hotel (Financial District) — Characterful historic atrium and several private rooms (Farnsworth Room, Clinton Hall, etc.) for seated dinners up to ~100–150 and receptions larger; good for stylish downtown events. (thebeekman.com)

• Wythe Hotel (Williamsburg, Brooklyn) — Multiple flexible spaces (Main Hall, Penthouse Loft, rooftop bars, cellar) — cocktail events up to a few hundred, seated dinners and intimate private dining. Great for skyline views and a Brooklyn aesthetic. (wytheweddings.com)

• 1 Hotel Brooklyn Bridge (DUMBO/Brooklyn Heights) — Large waterfront ballroom(s), screening room, rooftop and river‑view spaces (Meadow Rue, Blue Wood Aster) — capacities from small private dining to 400–600 reception‑style. Ideal for outdoor/park‑adjacent events with skyline views. (1hotels.com)

• The Standard, High Line (Meatpacking/High Line) — Funky, flexible event rooms including Biergarten, Garden Rooms, private Wine Room and rooftop options; good for brand activations, cocktail receptions, mid‑size dinners (20–200). (thestandardevents.com)

• The James / The James New York — NoMad (and similar hotels) — boutique‑hotel event packages with private dining, flexible meeting rooms and a dedicated events team; spaces suit private dinners, panels and corporate offsites (examples: The Madison Room). (jameshotels.com)

• The Pierre (Upper East Side) — Large, elegant meeting footprint (multiple private dining rooms, Terrace Room, rotunda) for intimate to large formal events (dozens to several hundred). Excellent for Central Park‑facing private functions. (thepierremeetings.com)

• The Ned NoMad — Hybrid hotel/members‑club with multiple Art‑Deco rooms, terrace and rooftop dome for private buyouts and mid‑size events (various rooms 10–125+). Good for stylish, semi‑private gatherings. (thened.com)

Notes on services and practical next steps

• Most full‑service hotels provide an events/sales team, in‑house catering, A/V support, floorplans and (for larger hotels) dedicated conference services — request an RFP and ask about minimum spends, buyout options, and vendor restrictions up front. (Hotels’ meetings pages typically describe these offerings.) (fourseasons.com)
• When you contact a hotel/events team, have these details ready: preferred date(s), estimated guest count, desired layout (seated dinner, cocktail reception, theater), basic budget, and any AV / catering needs. Ask for sample menus, floorplans, A/V specs, and contract terms (cancellation, deposit, outside‑vendor rules).
• If you want a narrower shortlist (by neighborhood, date, guest size, indoor vs outdoor, or budget) I can filter these options and produce a short list with direct contact pages and likely pricing ranges.

If you’d like, I can now:

• produce a shortlist limited to a neighborhood (e.g., Midtown, Downtown, Brooklyn),
• or pull contact/RFP pages and available capacities for 2–4 hotels you pick, — and include direct booking/contact details.