For investors
The product works. Now it is time to scale.
JSON Hub is a ready system for small and medium-sized businesses: sales, offers, team, projects and communication in one AI-assisted panel. It is in use with customers and supports self-service purchase. We want to grow fast and scale sales and marketing, so we are looking for partners and funds to help us get there.

Where we are
The hardest part already works
- Product in use with customers
- CRM, offers as a link, video meetings, phone, projects, team and an AI assistant in one system, used daily by companies.
- Pricing and model
- A subscription for the whole company, not per seat, plus usage-based billing (SMS, calls, AI) and implementation services.
- Buying without a salesperson
- 30 days free, card payment, invoices compatible with KSeF. A customer can go from trial to purchase on their own.
- Partner channel
- A partner programme with a panel, referral links and automatic commission settlement.
- Ready for international markets
- Website in Polish, English and German, prices in PLN, USD and EUR.
- The team that built it
- JSON Hub is made by JSON Crew, a Kraków software house that implements sales systems, offer configurators and automations for companies.
What we are raising capital for
Capital for fast growth
We build the product with our own team. Capital goes into scaling: more customers, faster, in Poland and abroad.
- Scaling sales
- A sales team that takes companies from demo to purchase and grows the partner network.
- Scaling marketing
- Campaigns, content and a steady flow of enquiries that grows with the budget.
- Partner network
- Recruiting and supporting the agencies, advisers and accounting firms that recommend JSON Hub.
- International expansion
- Entering new markets with ready English and German versions.

Who is behind it
Jędrzej Siewierski, owner of JSON Hub
CEO of JSON Crew
JSON Hub was designed and built by the JSON Crew team, a software house based in Kraków. At JSON Crew every new initiative has its own owner who is responsible for its growth. The owner of JSON Hub is Jędrzej Siewierski, the company's CEO and the system's architect.
Before that he spent years building sales systems, product configurators, integrations and IoT solutions for businesses. JSON Hub brings that experience into one product, and investors have one person accountable for its growth.
„I designed JSON Hub on the back of years spent building systems for businesses. I'm happy to tell you where we're heading.”
Who we are talking to
Every form of partnership is open
We do not have a single scenario. We are glad to meet anyone who wants to build a product company with us.
- VC funds
- Business angels
- Equity crowdfunding
- Support programmes and grants
- Strategic industry partners
How to start
Simple, and no pitch deck up front
- 01
Write to us
A few sentences about yourself and what you are looking for.
- 02
Conversation
We show the product live and explain how we work.
- 03
Details
We share figures, plans and documents after the conversation.
Let's talk about JSON Hub
Write to contact@jsoncrew.com. We reply personally.
This page is for information purposes only. It does not constitute a public offer or a proposal to acquire shares or other securities.
