Top 5 Inventory Forecasting Agencies for Managed Service Providers (MSPs) (2025)

Invensis provides outsourced inventory management services tailored to businesses facing inefficient inventory processes, including stockouts, overstocking, and inaccurate forecasting that affect order processing. With over 25 years of experience, their team uses centralized tracking, stock auditing, demand forecasting, safety stock management, and automated reorders to optimize inventory for various industries like eCommerce, retailers, and manufacturers. They emphasize using the latest software and techniques to streamline processes, reduce errors, improve delivery performance, and decrease stock-outs while increasing information transparency to shorten lead times. For companies seeking to control costs and improve supply chain forecasting, Invensis offers comprehensive services that prevent overstocking, reduce expenses on wages and insurance, and boost inventory turnovers. As an ISO 9001:2015-certified provider serving clients in the US, UK, Canada, and Australia, they help assess stock levels, analyze past purchases and orders, and identify items for repurchase or removal. Their approach enables diversification of supply chains, centralization of inventory management, and opening of new sales channels without impacting real-time tracking.

Vserve Solution offers inventory outsourcing and optimization services, combining technology, analytics, and skilled professionals to handle demand planning, real-time tracking, vendor communication, order processing, and warehouse support. They serve industries like eCommerce, retail, consumer goods, apparel, electronics, and manufacturing with onsite management for manufacturers and full-service outsourcing for global retailers. Their expertise focuses on reducing excess stock, preventing stockouts, improving supplier management, and enhancing cash flow through precise forecasting and inventory policies. As a long-term inventory management vendor, Vserve emphasizes human-led support with advanced tools for accuracy, efficiency, and scalability, including integration of real-time POS data and ongoing monitoring to adjust policies. They provide tailored solutions for multi-channel inventory across warehouses and sales channels, helping clients like global home goods retailers cut carrying costs by 28% and stockouts by 40%. Their service models support small businesses and enterprises in streamlining supply chains without in-house investments.

Extensiv delivers cloud-based warehouse, order, and automated inventory management systems designed for omnichannel fulfillment, enabling real-time results, pick/pack/ship transactions, and low inventory costs through mobile accessibility. Formed from mergers including Scout TopShelf, Skubana, and 3PL Central, they connect with hundreds of carts and marketplaces like Shopify, Amazon, and QuickBooks for seamless multi-channel visibility. Their platform supports cycle counting, lot/bin management, sales analytics, forecasting, and order management across multiple warehouses to prevent overselling and optimize stock levels. For businesses transitioning from spreadsheets to efficient systems, Extensiv provides integrations for automated replenishment, barcode printing, and reporting, with access to a 3PL warehousing network. They cater to brands and third-party logistics providers seeking scalability, offering features like multi-location tracking, kit assembly, and custom dashboards for inventory dimensions such as in-stock, committed, and back-ordered items. Their ecosystem includes professional services for implementation and customer success to achieve greater efficiencies in supply chain operations.

NetSuite offers unified ERP forecasting through its Demand Planning module, integrating inventory management with supply planning, order management, and production planning on a single cloud platform. It generates demand forecasts using historical sales, seasonality, and trends, creating multiple scenarios and aligning purchase orders with vendor lead times for real-time adjustments. Suitable for businesses already using NetSuite ERP, it provides scenario simulations, automation for re-ordering, and visibility across locations to reduce stockouts and excess inventory. For companies in consumer electronics or similar sectors outsourcing inventory, NetSuite combines with service providers to improve accuracy by up to 30% during peak sales, cutting holding costs by 20%. It focuses on streamlining accounting and inventory into one system, supporting multi-location tracking and custom reporting without negative inventory issues. As part of Oracle, it emphasizes enterprise-level precision for scalable operations in dynamic markets.