Your business plan,
built by conversation.
Not guesswork.

Your AI co-founder guides you step by step, asks the right questions, and builds a visual mindmap of your entire business. So you see how everything connects.

Start Your Plan, Free

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Sound familiar?

You have a great idea but no clue how to turn it into a real business.

You don't know what a go-to-market strategy is, let alone how to build one.

Business plan templates are 40 pages of blanks that assume you already know the answers.

You've googled "how to write a business plan" and every article says something different.

You know you have competitors but have no idea how to think about beating them.

What separates an idea from a company is structure. Seido gives you the framework. You bring the ambition.

How it works

From idea to structured plan in under an hour.

1

Talk through your idea

Start with what you know. Seido asks questions about your business, your market, and your product. No jargon, no templates. Just a conversation.

2

Build your mindmap

As you talk, Seido builds a visual map of your business. Your customers, revenue model, competitors, team. All connected and structured.

3

Refine and grow

Your plan is a living model. As your business changes, come back to update it, explore weak spots, and deepen any area. It evolves with you.

See the whole picture. Move with clarity.

Your mindmap connects every part of your business so you can act on the full picture.

See your whole business

Your mindmap connects everything. Customers to revenue, product to market, team to operations. The full picture, not scattered notes.

Spot gaps, think strategically

See what's missing, understand your competitive landscape, and identify the advantages that will set you apart.

Learn as you build

Seido explains each step and why it matters. You don't just get a plan. You understand your business.

Our Mission

Built so founders can turn ideas into companies, faster.

I had the idea and the drive. What I didn't have was the framework. I didn't know what a business plan actually needed, how the pieces connected, or what I was missing.

I started Seido because I needed a co-founder who knew what I didn't. Not someone to do the work for me, but someone to show me the pieces I was missing and how they fit together.

That's what Seido is. Your AI co-founder. So you move faster from day one, and never walk the path alone.

Sean, Founder of Seido

Sean

Founder of Seido

FAQ

Find quick answers to the most common questions about our platform

Seido is an AI co-founder that helps you build a structured business plan. It walks you step by step, from your idea to your financials, and builds a visual mindmap of how your entire business fits together.

Founders who'd rather move fast than figure everything out alone. If you have an idea and want to structure it into a real business, Seido is built for you.

ChatGPT gives you answers. Seido gives you structure. It guides you through a proven step-by-step process, remembers everything you've said, and builds a connected mindmap. Not just a wall of text.

It's a visual map of your entire business. Your customers, product, revenue model, competitors, team, all shown as connected nodes. You can see how one decision affects everything else.

You can start your plan for free. The first two phases (Foundation and Market) are on us. Upgrade to complete your full plan and unlock your entire business mindmap.

About 30 to 60 minutes for the full plan. You can stop and come back anytime. Seido picks up where you left off.

We love talking to our users. Reach out for anything at: help@seido.dev

制道

sei · dō

the way of making

From idea to company. Start now.

Free to start. No credit card required.

Start Your Plan, Free