The Best Inventory Optimization Software in 2026
We researched inventory optimization software from official websites, including pricing pages, plan tables and product documentation. Products are ranked on their core optimization job, value for money and verified features for setting stock levels, service targets and replenishment across locations.
Our top picks
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Top ranked
9.2/10A specialized platform for optimizing service-parts stock across complex supply chains.
Pricing on request
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Runner-up
Slimstock Slim4#2 of 258.7/10ERP-connected forecasting and replenishment for complex, multi-location inventory networks.
Pricing on request
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#3 ranked
ToolsGroup SO99+#3 of 258.6/10A broad, enterprise-focused optimizer for uncertain demand and multi-location inventory.
Pricing on request
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 25 tools, best first
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Best forService-parts inventory teams
A specialized platform for optimizing service-parts stock across complex supply chains.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
9.2/10★★★★★Visit PTC -
Best forBusinesses needing ERP-connected replenishment
ERP-connected forecasting and replenishment for complex, multi-location inventory networks.
- Multi-location optimization
8.7/10★★★★☆Visit Slimstock -
Best forBusinesses with intermittent demand
A broad, enterprise-focused optimizer for uncertain demand and multi-location inventory.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
8.6/10★★★★☆Visit ToolsGroup -
Best forEnterprise retail replenishment networks
A deep inventory optimization suite for enterprise retail replenishment networks.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
8.5/10★★★★☆Visit Manhattan -
Best forAdvanced probabilistic inventory optimization
A specialist platform for uncertainty-aware inventory and supply-chain decisions.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
8.4/10★★★★☆Visit Lokad -
Best forMidmarket ERP-connected inventory teams
A broad ERP-connected toolkit for inventory visibility, planning, and replenishment.
- Replenishment recs
- Service-level targets
- Multi-location optimization
8.3/10★★★★☆Visit Netstock -
Best forEnd-to-end supply chain organizations
A broad platform for optimizing inventory, planning, logistics, and supply chain decisions.
- Scenario planning
8.2/10★★★★☆Visit GAINS -
Best forCloud supply-chain planning teams
A broad cloud planning suite for coordinating demand, supply, inventory and logistics.
- Scenario planning
7.8/10★★★★☆Visit Blue Yonder -
Best forOrganizations needing inventory scenario analysis
A scenario-focused suite for optimizing inventory across SKUs, locations and supply-chain tiers.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
7.8/10★★★★☆Visit SAS -
Best forRetail forecasting and ML teams
A forecasting-focused suite for retail teams building and deploying demand models.
7.8/10★★★★☆Contact Zebra -
Best forFinance-led enterprise planning teams
Broad enterprise planning for finance-led teams, with inventory decisions as one part of a wider model.
7.8/10★★★★☆Visit Anaplan -
Best forNetwork-wide multi-echelon optimization
A strong fit for complex networks needing coordinated, service-level-driven inventory targets.
- Multi-echelon optimization
- Service-level targets
- Multi-location optimization
7.8/10★★★★☆Visit E2open -
Best forManufacturers with complex inventory stages
A cloud inventory optimization solution for manufacturers managing multiple stages and locations.
- Multi-echelon optimization
- Service-level targets
- Multi-location optimization
7.7/10★★★★☆Visit Aptean -
Best forFlexible multi-echelon planning deployments
A flexible planning solution for complex, multi-location inventory networks.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
7.6/10★★★★☆Visit Sophus -
Best forOracle- or SAP-based inventory teams
A planning-focused cloud solution for complex Oracle- and SAP-based supply chains.
- Multi-echelon optimization
- Service-level targets
- Multi-location optimization
7.5/10★★★★☆Visit Trinamix -
Best forMulti-echelon retail inventory planning
Deep multi-echelon planning for retailers managing complex inventory networks.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
7.2/10★★★★☆Visit 4R Systems -
Best forService-level-driven inventory teams
A specialized suite for aligning inventory, service levels, and replenishment across complex networks.
- Replenishment recs
- Multi-echelon optimization
- Service-level targets
7.1/10★★★★☆Contact Bluemingo -
Best forLarge integrated supply-chain planning teams
Broad cloud planning suite for large organizations that need connected supply-chain decisions.
- Scenario planning
6.8/10★★★☆☆Contact o9 Solutions -
Best forSMBs needing broad inventory integrations
A broad forecasting and planning suite for product businesses with connected inventory systems.
6.7/10★★★☆☆Visit StockTrim -
Best forRetailers needing transparent replenishment pricing
A broad inventory planning platform with clear store-based pricing and costly higher tiers.
- Multi-location optimization
6.6/10★★★☆☆Visit buffers.ai -
Best forFree open-source inventory analysis
A focused, free toolkit for inventory analysis, forecasting, and simulation.
- Replenishment recs
- Service-level targets
- Safety stock optimization
6.5/10★★★☆☆Visit supplychainpy -
Best forDevelopers modeling complex inventory networks
A powerful Python toolkit for complex inventory models, not a packaged replenishment application.
- Multi-echelon optimization
- Safety stock optimization
6.4/10★★★☆☆Visit Stockpyl -
Best forDevelopers testing replenishment policies
A focused open-source toolkit for developers comparing replenishment and safety-stock policies.
- Safety stock optimization
6.3/10★★★☆☆Visit replenishment -
Best forGoverned multi-domain planning teams
Governed, multi-domain planning for complex supply chain operations.
6.2/10★★★☆☆Contact ketteQ -
Best forTeams wanting affordable AI forecasting
Affordable AI forecasting with SKU-level planning, replenishment, and scenario analysis.
- Scenario planning
5.7/10★★★☆☆Visit Flowlity
No tools match those filters.
Compare at a glance
| # | Tool | Paid from | Multi-location optimization | Safety stock optimization | Service-level targets | Score |
|---|---|---|---|---|---|---|
| 1 | PTC Servigistics Advanced Inventory Optimization | Yes | Yes | Yes | 9.2 | |
| 2 | Slimstock Slim4 | Yes | 8.7 | |||
| 3 | ToolsGroup SO99+ | Yes | Yes | Yes | 8.6 | |
| 4 | Manhattan Active Inventory Replenishment | Yes | Yes | Yes | 8.5 | |
| 5 | Lokad | Yes | Yes | Yes | 8.4 | |
| 6 | Netstock Inventory Optimization | Yes | Yes | Yes | 8.3 | |
| 7 | GAINS | 8.2 | ||||
| 8 | Blue Yonder Demand and Supply Planning | 7.8 | ||||
| 9 | SAS Intelligent Inventory Management | Yes | Yes | 7.8 | ||
| 10 | Zebra Workcloud Forecasting & Analysis | 7.8 | ||||
| 11 | Anaplan | 7.8 | ||||
| 12 | E2open Multi-Echelon Inventory Optimization | Yes | Yes | Yes | 7.8 | |
| 13 | Logility Inventory Optimization | Yes | Yes | Yes | 7.7 | |
| 14 | Sophus Inventory Optimization | Yes | Yes | Yes | 7.6 | |
| 15 | Trinamix Multi-Echelon Inventory Optimization | Yes | Yes | Yes | 7.5 | |
| 16 | 4R Systems Intelligent Inventory Optimization | Yes | Yes | Yes | 7.2 | |
| 17 | Bluemingo Inventory Optimization | Yes | Yes | Yes | 7.1 | |
| 18 | o9 Digital Brain | 6.8 | ||||
| 19 | StockTrim | $298/mo | 6.7 | |||
| 20 | buffers.ai | $2,000/mo | Yes | 6.6 | ||
| 21 | supplychainpy | Free | Yes | Yes | 6.5 | |
| 22 | Stockpyl | Free | Yes | 6.4 | ||
| 23 | replenishment | Free | Yes | 6.3 | ||
| 24 | ketteQ | 6.2 | ||||
| 25 | Flowlity | €249/mo | 5.7 |
Head-to-head All 27 comparisons →
- PTC Servigistics Advanced Inventory Optimization vs Slimstock Slim4
- PTC Servigistics Advanced Inventory Optimization vs ToolsGroup SO99+
- PTC Servigistics Advanced Inventory Optimization vs Manhattan Active Inventory Replenishment
- PTC Servigistics Advanced Inventory Optimization vs Lokad
- PTC Servigistics Advanced Inventory Optimization vs Netstock Inventory Optimization
- PTC Servigistics Advanced Inventory Optimization vs GAINS
- PTC Servigistics Advanced Inventory Optimization vs Blue Yonder Demand and Supply Planning
- Slimstock Slim4 vs ToolsGroup SO99+
- Slimstock Slim4 vs Manhattan Active Inventory Replenishment
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How we rank inventory optimization software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update