Here are reputable hotels and large venue complexes in Singapore that offer meeting rooms, ballrooms and conference halls (good mix across Marina Bay, Suntec, Orchard and City Hall areas). I’ve included a short note on typical capacities and where they’re located — click or contact the venues directly for exact availability, current pricing and floorplans.

1. Marina Bay Sands (Sands Expo & Convention Centre) — Marina Bay

• Very large ballroom and breakout rooms; Sands Grand Ballroom expandable to thousands (the site lists Sands Grand Ballroom options up to ~5,820 sqm and overall capacity figures up to ~8,000 for very large setups). Ideal for large conferences, exhibitions and hybrid events.
• Contact/venue info on their meetings & conventions pages. (marinabaysands.com)

2. Suntec Singapore Convention & Exhibition Centre — Downtown / Raffles Boulevard (Suntec City)

• Major convention centre attached to hotels and mall: dozens of meeting rooms, multiple exhibition halls and auditoria; flexible halls that combine into large exhibition/conference spaces (Suntec lists thousands of sqm and capacities for up to several thousand attendees depending on layout). Great for large conferences and exhibitions. (10times.com)

3. The Ritz‑Carlton, Millenia Singapore — Marina Bay / Downtown

• Multiple meeting rooms and a large Grand Ballroom (hotel lists ~13 event venues and a Grand Ballroom that can host up to ~1,400 guests). Well suited for corporate conferences, gala dinners and product launches. (ritzcarlton.com)

4. Swissôtel The Stamford / Fairmont Singapore (Raffles City complex) — City Hall / Marina Bay area

• Extensive meeting facilities and multiple ballrooms (Raffles City Convention Centre linked to the hotels; examples include Stamford and Fairmont ballrooms with capacities from small boardrooms up to several hundred or more, and a Fairmont Ballroom quoted to accommodate up to ~3,000 in larger configurations). Good for medium-to-large conferences and multi-room events. (swissotel-singapore-stamford.com)

5. Grand Hyatt Singapore — Orchard / Scotts Road

• Large flexible event spaces across multiple levels; hotel advertises more than 5,100 sqm of event space and ballrooms/breakout rooms that support events from small meetings up to 2,200 guests (depending on configuration). Convenient for events centered around Orchard Road. (hyatt.com)

6. Pan Pacific Singapore — Marina Bay / Marina Square

• Full MICE facilities including ballrooms and multiple meeting rooms; popular with corporate groups and neighbouring convention centres. (Pan Pacific is a major meetings hotel near Marina Square / Marina Bay.) (hyatt.com)

7. JW Marriott Singapore South Beach — Downtown / City Hall area

• Multiple meeting rooms and ballrooms suitable for conferences, board meetings and banquets; modern AV and event support for corporate events. (Hotel offers sizeable event spaces within the South Beach complex.) (cvent.com)

8. The Fullerton Hotel Singapore — Marina Bay / Fullerton Square

• Heritage luxury hotel with several function rooms and ballrooms for meetings, smaller conferences and executive events — good for prestige board meetings, networking breakfasts and mid-size conferences. (Contact hotel for capacities and floorplans.) (swissotel.com)

9. Shangri‑La Singapore — Orchard / Orange Grove

• Multiple meeting rooms, ballrooms and conference facilities (Shangri‑La is well-known for large banquets, conferences and incentive events). Good for hotel-led full-service events. (hyatt.com)

10. Resorts World Sentosa / hotels on Sentosa (for resort-style conferences)

• Multiple resort hotels (e.g., Equarius, Festive Hotel, Hard Rock, etc.) with conference halls, ballrooms and large-capacity venues — appropriate if you want leisure/resort elements for delegates. (meetingsnet.com)

Notes and next steps

• Capacities vary by room configuration (theatre, classroom, banquet, reception). The numbers above are illustrative — always request the venue’s event fact sheet/floorplan for exact limits and AV capabilities.
• If you tell me the approximate date(s), expected number of delegates, preferred neighbourhood (Marina Bay, Orchard, Sentosa, Suntec/City Hall), and whether you need exhibition space or just meeting rooms + breakout rooms, I can:
  • shortlist 3–5 venues that fit your requirements, and
  • include each venue’s recent capacity table, approximate package pricing ranges (if available), and direct contact/RFP links.

Would you like a shortlist based on date, guest count or location?