Tool profile
Slimstock: cost, fit and limits
Slim4 is a supply chain planning suite made by Slimstock, a company headquartered in Deventer in the Netherlands, that covers supply, assortment, production, promotion, collaboration and budget planning. It is sold to distributors, wholesalers, retailers and manufacturers, and Slimstock reports more than 1,700 customers and over 600 professionals.
What to know first
Slimstock approaches planning from the stock shelf upward. Slim4 is described as a suite for optimizing supply, assortment, production and promotions, with open-to-buy budget control and end-of-life management for products. The security page is short but names ISO 27001:2022. Pages talk about outcomes such as availability and excess stock, not about models, so a buyer should ask to see the forecasting method and the price before anything else.
Slimstock at a glance
| Maker | Slimstock, Netherlands |
|---|---|
| Free plan | No |
| Entry price | Quote only |
| API access | No |
| Category | Best AI Supply Chain Planning Software in 2026, rank 5 of 11 |
| Website | slimstock.com |
Who Slimstock is best for
European distributors and wholesalers
The company is headquartered in the Netherlands, publishes pages in more than ten languages including Dutch, German, French and Danish, and lists offices across Europe, so support in a local language is plausible.
Retail buyers managing new and ending items
Slim4 pages describe demand calculation for new items and end-of-life management, which target the two moments when buyers most often misjudge stock: launch and clearance.
Finance teams controlling purchase budgets
Open-to-buy functionality flags gaps between growing demand and existing budgets, so purchasing and finance can see a shortfall before orders are placed.
Suppliers and buyers sharing plans
Slim4 is described as making critical data open to relevant parties for approvals, pricing and agreements, which suits trading partners who want to agree forecasts.
Slimstock plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Supply chain planning software | Quote only | Supply, assortment, production, promotion, collaboration and budget control planning in the Slim4 suite. The page offers a demo booking and no pricing. |
| Demand management software | Quote only | A dedicated solution page for demand management, listed beside the planning suite. Pricing, user limits and module boundaries are not shown. |
| Inventory management software | Quote only | A solution page for stock and replenishment management. The site gives no price, so scope and cost need a written proposal. |
| Commerce management software | Quote only | A fourth solution page aimed at commerce teams. Slimstock does not print a price or a module comparison for it. |
Checked October 2026.
What Slimstock does
- New item forecasting
- The page says Slim4 can calculate demand accurately for fresh introductions, which matters for retailers and distributors that add many items each season and cannot wait for months of sales history.
- End-of-life management
- Product lifecycle planning is meant to avoid excess stock or premature markdowns by tuning each item's final stage. Ask how the tool decides when an item has entered that stage.
- Open-to-buy
- Budget control compares demand growth with existing purchase budgets and flags gaps, so a planner can raise a budget request before shelves run empty rather than after a stockout.
- Consensus forecasting
- Collaboration features let several roles agree on forecasts and supply plans. Slimstock ties better consensus to better plan quality, though the page shows no measured effect.
- Store promotions
- A promotion tool targets higher hit rates at store level, linking promotional demand to supply so that campaign items arrive in the right quantity at the right store.
How Slimstock handles your data
Slimstock's security page states that the company is ISO27001:2022 certified, with security principles built into development, and that it protects more than 1,700 customers. It names availability, integrity and confidentiality as its goals. The page does not describe hosting providers, regions, retention periods, penetration test practice or whether customer data is used to train any model, so these points need a written answer before a contract is signed.
Where Slimstock falls short in practice
- Method is not shown. Slim4 pages describe benefits such as availability and less waste, but not the statistical models or any machine learning. A buyer cannot judge the AI claim from the site and should ask for a forecast back-test.
- Four solutions, no boundaries. Planning, demand, inventory and commerce each have a page. Nothing explains where one ends, so a quote can cover overlapping scope or leave a gap that surfaces during implementation.
- Hosting is unstated. The security page mentions certification but not data center location or provider. A European company still needs written confirmation that data stays in the region it requires.
Works with
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Slimstock: common questions
What does Slim4 cover compared with the other Slimstock pages?
The planning page describes Slim4 as a suite for supply, assortment, production, promotions, collaboration and budget control. Separate pages exist for demand management, inventory management and commerce management. Slimstock does not explain how they divide, so ask for a module list showing which functions each contract includes.
Is Slimstock certified for information security?
Its security page says Slimstock is ISO27001:2022 certified and that security principles are built into development. It does not name the certification body, scope or date. Ask for the certificate and its scope statement, and check that it covers the cloud service you will actually use.
Where is Slimstock headquartered?
The contact page marks Zutphenseweg 29 in Deventer, the Netherlands, as headquarters and lists offices in other countries, including Saudi Arabia and South Africa. It also reports more than 600 professionals and more than 1,700 customers, which are the vendor's own figures.
Does Slim4 handle new products without sales history?
The planning page says Slim4 can calculate demand accurately for new introductions and supports end-of-life management for each item. It does not explain the method. Run a trial on items launched in the last two years and compare its first-month forecast with what actually sold.
Can Slimstock share plans with suppliers?
The planning page describes making critical data open to relevant parties so approvals, pricing and agreements are settled faster, and mentions consensus forecasting. It does not say whether suppliers log in to a portal or receive files, so request a demonstration of the supplier view.