Building an Investor Pitch Deck with Claude

Why Pitch Decks Are Hard to Write

A pitch deck asks you to compress years of thinking about your business into 10–15 slides that tell a coherent, compelling story. Most founders know their business intimately but struggle to structure that knowledge for an external audience that has 4 minutes of attention.

Claude helps by enforcing structure, suggesting what's missing, and pushing you to articulate things you've been glossing over.

The Slide-by-Slide Workflow

Step 1: Write the company description prompt

Before touching slides, give Claude a dense context dump:

Company: [Name]
What we do: [One sentence]
Customer: [Specific description of who buys]
Problem we solve: [Specific pain point]
Our solution: [How we solve it]
Business model: [How we charge]
Current traction: [Users, revenue, pilots, LOIs]
Ask: [How much you're raising]
Use of funds: [Top 3 uses]

Step 2: Generate the narrative arc

Ask Claude to build the story before the slides:

Based on the company context above, write the narrative arc for a 10-slide pitch deck.
For each slide, provide: slide title, the one key message a reader should leave with,
and the supporting evidence or data point that makes that message credible.

Step 3: Generate slide content

Once you approve the narrative, go slide by slide:

Write the content for the Problem slide. The message is [from Step 2].
Use 3 bullet points. Each bullet should be a specific, quantified pain point.
Avoid jargon. The reader is a generalist VC, not a domain expert.

Step 4: Build the financial projections slide

This is where human expertise is non-negotiable. Claude can generate the structure:

Generate a financial projections slide structure for a SaaS company.
Include: revenue model assumptions, Year 1-3 revenue ranges, key metrics
(ARR, MRR, churn), and a clear path to profitability.
Flag the assumptions the founder needs to fill in.

You supply the actual numbers. Claude formats and frames them.

Step 5: The team slide — format, don't fabricate

Write a team slide narrative. The team includes:
- [Name], [Title], [Relevant prior experience in 1 sentence]
- [Name], [Title], [Relevant prior experience in 1 sentence]
Emphasize domain expertise and why this team specifically is positioned to win.

Step 6: Generate the ask and use of funds

We are raising [amount] at a [valuation/terms if applicable].
Write the Ask slide content. Break the use of funds into 3–4 buckets
with approximate percentages. Connect each bucket to a specific milestone
we'll achieve with that capital.

What Good Pitch Deck Prompting Looks Like

Weak prompt:

Write a pitch deck for my startup.

Strong prompt:

Write the Problem and Solution slides for a Series A pitch deck.
The company builds AI-powered code review tools for enterprise engineering teams.
The problem: code review takes 3.5 hours per PR at large companies, blocking deployment speed.
The solution: AI that reduces review time to 20 minutes while catching 90% of issues.
The audience is a partner at a $500M enterprise SaaS fund.
Use 3 bullet points per slide. Lead with data.

Common Mistakes to Avoid

• Too many bullets — Claude will happily produce 8 bullets per slide. Push back. 3 is the maximum.
• Jargon for generalist audiences — Ask Claude to "rewrite this for someone with no domain expertise"
• Missing the "why now" — Always add a slide or section explaining why this market is ready today
• Fabricated metrics — Never let Claude invent traction numbers. Placeholder brackets like [INSERT Q1 ARR] are correct.

Key Takeaways

• Provide dense context before asking for any slide content
• Generate the narrative arc before generating individual slides
• Human expertise is required for financial projections — Claude provides structure, you provide numbers
• Iterate on tone and audience: the same deck may need different versions for different investor types

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Try It Yourself: Using the context dump format above, fill in your own company details (or a fictional one). Run the narrative arc prompt and evaluate: does the proposed story flow logically? Which slide transitions feel weak? Ask Claude to strengthen the two weakest transitions.