That depends on what the prospect's needs are. At a first meeting a pitch is not needed. The prospect won't care who you are or how much you know until they know how much you care. Save the pitch until you know enough to tell them how you can help them meet their specific needs.
That's like asking "how long is a piece of string?" :D
I would recommend looking at TED Talks for inspiration, reading Nancy Duarte's excellent books Slide!Ology and Resonate, trying Prezzi (one slide - all interactive content), or looking at how Daniel Pink and RSAnimate present a topic in just 12 minutes
For any presentation you need to ask yourself a few key questions:
- who's my audience
- how will I present my key points
- what story will I tell to carry the message
- how will I reinforce my key points
- how will I convey my call to action
The pitch should be brief and to the point. Elevator pitch to investor's should to specific as to what your objective's are what you target audience is and what is monetary and financial plan. A maximum 9 to 12 slides would be adequate for a pitch.
not more than 5 slides - remember the deck is just for you to stay focused and provide clarity to your audience as to what really you want to achieve - more important is conversing with your audience, answering their questions and building a conviction. As for the other logistics of the deck, if you are pitching a business idea, make sure you include one slide each on:
1. What is it that you are offering - Your USP vis a vis competitive landscape
2. Business model canvas with all details including revenue streams, partnerships, value propositions etc.
3. Team - key people and their strengths / role
4. Your execution plan with details on how much you will spend at different stages
5. A 2-3 year revenue forecast
Make sure you make all slides visually rich (with graphs and charts) for your audience to grasp everything quickly in a short time frame.
It all depends on who you are pitching to. Short pitches with self-explanatory graphics on your value proposition work best.
I use zero slides in my 90 minute presentation.
I use 52 slides in my 37 minute presentation.
Different styles, both very effective.
Nobody will every complain that you have too few slides...
Pitch slides can be from 8 - 12 no more than 14 slides with 30 font minimum and no more than four bullet points per slide. Rule of thumb, keep your message clear, precise, concise and to the point. I suggest that the slide show be kept under 15 minutes total to keep interest from the beginning to the end. A lot of answers provided before me are right on. You just need to find what works best for you. Ask for opinions and get constructive feedback from your peers to keep the understanding of the pitch clear.
I've read (I believe) on hedgefund.com that it should be no more than 25 slides and the presentation no more than 25 minutes.
I have found no more than 8 slides, any more and you will loose the attention. Get to the point quickly, limit your background and/or company history and information. After all, the potential customer does not really care about stuff like that. Get to what you can do for them by slide 2. I always look at developing presentations looking at it through the recipients eyes. Customers are always motivated by "what's in it for me".
One slide for every @ every two minutes -- 15 minutes --- 8 slides. BIG fonts, easy to read/see - give ONLY key info - you explain the rest. Slides are only to capture visual engagement on key points - you are supposed to be the expert and deliver most of the information. I go by the 5x5 -- no more than five ideas per slide - 5 lines per slide - or LESS. I also agree that Guy Kawasaki's template is excellent.