Custom ERP and CRM
Your whole company, in one program.
Quotes, stock, invoices, banking and accounts are linked to each other. You enter a piece of information once, and it appears everywhere it is needed. We shape the modules, the roles and the integrations around the way your company works.
Desktop and phone · AI hosted in the EU · Your integrations
Why an ERP
Five programs that never talk to each other.
This is what one sale looks like in many companies: the quote in Word, the stock in a spreadsheet, the invoice in another program, the payment in the bank statement, and a folder for the accountant at the end of the month.
Today
- You copy customer details from a public register.
- You check stock in a spreadsheet and hope it is up to date.
- You upload invoices to the tax portal and check whether they went through.
- You look for payments in the statement and tick them off by hand.
- You gather documents for the accountant at the end of the month.
With Kronstadt ERP
- You type the tax ID, and the details come from the register.
- Stock goes down with every delivery note. You see it per warehouse.
- The e-invoice goes to the tax office from the same screen.
- The payment appears from the statement and you match it to the invoice.
- The accountant works in the same program, with the entries already written.
How it works
What an ERP actually does.
An ERP keeps a company’s sales, purchasing, stock, money and people in one place. The CRM is the part that holds customers and quotes. In Kronstadt ERP they are the same program. Pick an example and follow it.
- ERPEnterprise Resource Planning
- the company’s management software
- CRMCustomer Relationship Management
- the record of customers and quotes
Modules
Everything the company uses, in one place.
Sales and CRM
Customers, quotes, orders
Purchasing
Suppliers, orders, invoices
Stock
Warehouses, delivery notes, counts
Accounting
Chart of accounts, VAT, balance sheet
e-Invoicing
Sending, status, archive
Banking
Statements, receipts, payments
Staff
Leave, attendance, expenses
Reports
Sales, profit, due dates
A modern ERP
A modern ERP, easy to use, on the phone too.
Interface
Easy to learn
Clear screens, with what you need in plain sight. You find any customer, invoice or product from one search field.
Mobile
Works on the phone
The program opens in the phone browser. The scan page and the employee app go on the home screen, with nothing to install from an app store.
Roles
Each person sees only what they need
We hide the modules your company does not use. The office sees sales and invoices. The technician sees their own jobs, without prices.
Your trade
Modules for your trade
Service companies get a module for equipment, periodic inspections and due dates. We build modules for other trades the same way.
Local rules
Local tax rules, built in, as we did for Romania.
ANAF · SPV
RO e-Factura
You send invoices and credit notes straight from the program. The status is checked every 15 minutes, and the answer signed by ANAF is archived. You get a warning before the five working day deadline.
VAT register
Company details from the tax ID
Type the tax ID of a customer or supplier. The name, the Trade Register number, the address and VAT on collection fill in by themselves.
Daily
National Bank rates
The EUR, USD and GBP rates come from the National Bank of Romania every day, for invoices and payments in foreign currency.
OMFP 1802
Chart of accounts and VAT
The Romanian general chart of accounts, the 21%, 11% and 0% VAT rates, reverse charge and VAT on collection are set up from the start.
Documents
Documents as the accountant expects
The numbering series, the invoice, the pro forma and the cash receipt follow local rules. The interface works in English and in Romanian.
People
Staff and leave
Employees, leave by the types in the Labour Code, check-in from the phone, and expense claims. Payroll stays with your accountant.
Modules and integrations
Pick the modules. We connect them to what you already use.
Every company gets its own set of modules and integrations. Pick a type of company and see what changes.
Modules
- Sales and CRM
- Purchasing
- Stock
- Production
- Service and maintenance
- Accounting
- Staff
- Online store
Kronstadt ERP
one databaseBanks, over PSD2
State
- ANAF e-Factura
- ANAF VAT register
- ANAF statements
- National Bank rates
AI, payments and delivery
- Claude
- ChatGPT
- Stripe
- Couriers
- Your program
Missing an integration? We build it.
We connect to any program or service that has an API. Tell us which program or service your company uses.
Ask for an integrationAI in the ERP
AI does the routine work. You approve.
AI is part of Kronstadt ERP from the start, not added on top. The built-in AI runs in the European Union, under GDPR, with zero data retention.
Photograph the receipt. The invoice fills itself in.
Open the scan page on your phone and photograph the receipt or the supplier invoice. AI reads the document, and Kronstadt ERP prepares the draft purchase invoice with the supplier taken from the tax register. Nothing is booked until you approve it.
In short
- Built-in AI
- hosted in the European Union
- Data
- under GDPR, with zero data retention
- On the phone
- the scan page, added to the home screen
- Checks
- duplicates, totals, your company tax ID, credit notes
- Limit
- a number of documents a month, set for each company
Draft · purchase invoice
- Supplier
- Magazin Demo SRL
- Tax ID
- filled in from the register
- Date
- 24.10.2026
- Net
- RON 983.47
- VAT 21%
- RON 206.53
- Total
- RON 1,190.00
To approve
Integration with Claude or ChatGPT over MCP
Ask Claude or ChatGPT which invoices are unpaid, or ask for a quote. It searches Kronstadt ERP, runs the reports and prepares the draft. It has the same rights as you. It deletes nothing and changes no settings. An invoice it submits goes to the tax office only if your e-invoice settings say so. Every request stays in the log. The link uses your own Claude or ChatGPT account, under its terms.
Rules
- Tools
- 19, from search and reports to drafts
- Rights
- read, drafts, edit and submit, for each role
- Log
- every request, kept for 180 days
- Limit
- 30 requests a minute
How we start
From the first call to the first invoice.
Demo
On your examplesYou tell us how you work today. We show you the same flow in Kronstadt ERP: a quote, an e-invoice, a bank statement.
Offer
In writingYou receive a written offer with the modules, the integrations, the implementation cost and the monthly cost.
Implementation
Data · roles · integrationsWe set up the company, the chart of accounts, the roles and the integrations. We bring the data over from the program you use today.
Training and support
Your teamWe train each person on their role and stay with you for questions, adjustments and updates.
See Kronstadt ERP on your own company data.
Book a demo or ask for an offer straight away. We reply within two working days.