How Much Coffee Do You Need for a 100-Person Corporate Event?

The single most useful piece of information when planning coffee catering for a corporate event is the math. Once you know how many drinks per guest, how fast a barista serves, and how the timing shakes out, everything else becomes easy.

Here is the framework professional planners use.

The Core Math

Start with two numbers: drinks per guest and drinks per hour per barista.

• Drinks per guest, 2-hour event: 1.5–2
• Drinks per guest, 4-hour event: 2.5–3
• Drinks per guest, all-day (6+ hours): 3–4
• Drinks per hour, per barista: 30–50 (varies by drink complexity)

Simple lattes and Americanos push closer to 50 drinks/hour. Elaborate signature drinks and pour-overs slow that to 30 or below.

By Guest Count

50 Guests, 2 Hours

Expected drinks: 75–100 total. One barista handles this comfortably. Total cost: typically $600–1,200 depending on region and vendor.

100 Guests, 2 Hours

Expected drinks: 150–200 total. One skilled barista can just barely handle this at full speed, but plan on two if you want zero wait times. Total cost: $900–1,800 with one barista, $1,400–2,500 with two.

100 Guests, 4 Hours

Expected drinks: 250–300 total. Two baristas required to avoid queues. Total cost: $1,800–3,200.

250 Guests, 3 Hours

Expected drinks: 500–625 total. Two baristas working at capacity handle 240–300 drinks in three hours — you will need to add a third barista or extend service time. Total cost: $2,500–4,500 with two baristas.

500 Guests, 4 Hours

Expected drinks: 1,000+ total. Two full cart setups with two baristas each. Some vendors bring dual-cart setups for events this size. Total cost: $5,000–8,000+.

Common Planning Mistakes

• Underestimating drinks per guest. Corporate crowds drink more coffee than social crowds. Plan on the higher end.
• Not accounting for the "rush". The first 30 minutes of service always sees a spike. Two baristas can serve twice as many people during that peak, cutting wait times dramatically.
• Forgetting the finish line. If you have a keynote or presentation starting at 10am, ensure service ends at 9:45am. People will still be in line otherwise.
• Ignoring dietary needs. Have oat milk. It is now standard-issue for corporate events.

The Timing Question

The most common failure mode is not staffing — it is timing. A 100-person event with two baristas can serve everyone in one hour flat. But if you booked the cart for exactly one hour, you have created a bottleneck.

Always add 30 minutes of buffer at the start and end of your event window. That gives vendors time to set up cleanly, and gives late arrivals a shot at coffee before service ends.

What to Tell Your Vendor

When requesting quotes, include:

• Total guest count
• Event duration in hours
• Event type (all-hands meeting, product launch, appreciation day, etc.)
• Any custom branding or signature drink requests
• Dietary requirements (oat milk, decaf, tea alternatives)
• Setup access details (power availability, load-in path)

Ready to get quotes? Submit a request and we'll match you with vetted vendors in your area.