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Microsoft
Microsoft SQL Server 2025 Standard
£855.90
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Microsoft
Microsoft SQL Server 2025 Enterprise perpetual licence for mission-critical databases with native vector search and advanced HA.
Microsoft SQL Server 2025 Enterprise perpetual licence for mission-critical databases with native vector search and advanced HA.
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Join nowMicrosoft SQL Server 2025 Enterprise is the definitive edition for organisations that treat their database platform as a production asset, not a utility. This is the perpetual-license release engineered for demanding online transaction processing (OLTP), large-scale data warehousing, advanced business intelligence, and the new generation of AI-aware applications. When Standard edition limits around compute, memory, or high-availability architecture become a business constraint, Enterprise delivers the full feature ceiling: unlimited virtualisation rights, advanced availability groups, comprehensive resource governance, and transparent data encryption at rest and in transit.
This SKU provides a genuine, verified Microsoft SQL Server 2025 Enterprise perpetual license delivered digitally. It is not a subscription, not a consumption-based cloud charge, and not a rental. You own the license position. For database administrators, infrastructure architects, managed service providers (MSPs), and procurement teams who need to plan capacity, document compliance, and control long-term cost, a perpetual core-based license offers predictability that subscription models cannot match. The 2025 release introduces native vector search, a dedicated vector data type, enhanced JSON functions, intelligent query processing improvements, and hardened security defaults — all while preserving the familiar SQL Server engine, toolchain, and operational practices your team already trusts.
Your order delivers a Microsoft SQL Server 2025 Enterprise perpetual license key via email. This is a digitally fulfilled product — you receive the license activation path, a downloadable VAT invoice, and clear activation instructions within minutes of a completed payment.
The license is a permanent, non-expiring grant for the purchased core count. It is not a time-limited subscription, not an OEM key tied to a single hardware build, and not a Microsoft 365 or Azure consumption SKU. You activate the license against Microsoft's activation infrastructure and retain the right to run the software for the lifetime of the product under the applicable Microsoft licence terms.
Activation follows the standard Microsoft volume licensing or retail activation workflow, depending on the specific SKU variant selected. The accompanying guide explains how to download the official SQL Server 2025 installation media from Microsoft's trusted sources, enter the key, and complete activation. Store the invoice, licence key, server name, core count, and deployment date together — this record turns a purchase into a managed, auditable database asset.
SQL Server 2025 Enterprise is licensed under a per-core model. You must license every physical core in the server (minimum four cores per processor) or every virtual core assigned to the virtual machine, subject to the licensing minimums defined in Microsoft's Product Terms. Per-core licensing is the standard model for Enterprise edition and does not require Client Access Licences (CALs) for users or devices accessing the server.
If your deployment uses the Server + CAL model — available on Standard edition, not Enterprise — you would need a server licence plus a CAL for each user or device. Enterprise edition buyers should plan for core-based licensing and confirm the core count before purchase. The SKU on this page covers the core licence; CALs are not required for Enterprise per-core deployments.
Virtualisation rights are a key consideration. With Software Assurance coverage (available separately), a fully licensed Enterprise per-core host permits unlimited virtual machines running SQL Server Enterprise on that host. Without Software Assurance, each virtual machine must be licensed individually for the virtual cores assigned. Document your hypervisor topology and core allocation before activation to ensure compliance.
Edition comparison at a glance: Enterprise is the top-tier edition for organisations that need the full feature surface. Standard edition caps compute at the lesser of four sockets or 24 cores, limits memory to 128 GB per instance, and does not include advanced availability groups, online index rebuilds, or fine-grained resource governance. If your workload fits within Standard limits, that edition may be sufficient. When you need scale, advanced HA, or the complete security and analytics feature set, Enterprise is the correct edition boundary.
| Component | Requirement | |---|---| | Operating system | Supported Windows Server release or a supported Linux distribution (Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu) as documented for SQL Server 2025 | | Processor | x64-compatible processor meeting the minimum instruction set and speed requirements for SQL Server 2025 | | Memory | Sized for the target workload; Enterprise deployments should plan memory capacity for buffer pool, query execution, in-memory objects, and high-availability overhead | | Storage | Fast, resilient storage for data files, transaction logs, tempdb, backup volumes, and maintenance operations; Enterprise features such as Always On availability groups benefit from low-latency shared or replicated storage | | Network | Internet connectivity required for digital licence delivery and may be required for activation; production deployments need reliable inter-node networking for availability group synchronisation |
SQL Server 2025 Enterprise supports the following interface languages: English, German, French, Spanish, Portuguese, Japanese, Polish, Dutch, Italian, Czech, Swedish, Danish, Finnish, Norwegian Bokmål, Greek, Hungarian, Romanian, Slovak, Slovenian, Croatian, Bulgarian, Estonian, Lithuanian, and Latvian. The database engine itself operates with Unicode support across all languages. Always verify your specific operating system version, kernel, and hardware compatibility against the current Microsoft SQL Server 2025 documentation before deployment.
After your payment is processed, Lizensa delivers the licence key and activation instructions to the email address associated with your order. Delivery typically completes in under 60 seconds. The email contains the product key, a direct link to download the official SQL Server 2025 installation media from Microsoft, and a step-by-step activation guide.
Installation follows the standard SQL Server setup workflow: download the ISO or run the web installer, select the Enterprise edition, enter the licence key when prompted, choose the database engine components and features your workload requires, and complete the configuration. Post-installation, apply the latest cumulative update from Microsoft to ensure you have all security and performance fixes.
If activation does not complete successfully, verify that the server has internet connectivity to reach Microsoft's activation endpoints, that the key was entered exactly as provided, and that the installed edition matches the licensed edition. Lizensa provides free multilingual technical support to assist with any activation issues. Because this is a perpetual licence, you may reinstall the software on the same licensed hardware or virtual machine as needed, provided the deployment remains within the licensed core count.
Lizensa is an established EU software licence retailer serving database professionals, IT procurement teams, and managed service providers across all 27 member states. When you purchase Microsoft SQL Server 2025 Enterprise from Lizensa, you receive a genuine, verified licence sourced through authorised European distribution channels — not a reused volume licence key, not an MSDN key resold in violation of Microsoft's terms, and not a key of uncertain origin. Every licence is authentic and backed by a full VAT invoice that supports your accounting and compliance records.
Your transaction is processed through Stripe's secure checkout infrastructure, with payment options that include SEPA bank transfer, iDEAL, BLIK, Google Pay, and major credit and debit cards. The checkout experience is localised, transparent, and free of hidden charges. After payment, the licence key arrives by email — on average in under a minute — so you can begin deployment without delay. Lizensa's digital delivery model eliminates shipping costs, customs delays, and physical packaging waste.
As an EU-based retailer, Lizensa operates under European consumer protection law. Private buyers benefit from a 14-day right of withdrawal. Business buyers receive a compliant VAT invoice with reverse-charge applicability where valid. Free multilingual support is available before and after purchase to help with pre-sales questions, activation guidance, and licence management. Lizensa treats a database licence as a managed asset, not a one-off transaction — your purchase record, invoice, and key are preserved for future reference, audit, and reinstallation.
This SKU is a perpetual (one-time) licence. You pay once and own the licence for the lifetime of the product. It is not a monthly or annual subscription, and it does not expire or require renewal.
A perpetual licence grants the right to use the software indefinitely for the purchased version. A subscription grants access for a fixed term and stops working if payments cease. Perpetual licensing provides long-term cost predictability and is preferred by organisations that want to control their upgrade cycle rather than being tied to a recurring billing schedule.
No. Enterprise edition is licensed under the per-core model, which does not require CALs. Every user or device that accesses the server is covered by the core licences. If you deploy Standard edition under the Server + CAL model, CALs would be required.
You must license every physical core in the server, with a minimum of four core licences per processor. For virtualised environments, license every virtual core assigned to the virtual machine, subject to a minimum of four per VM. Count your cores carefully before ordering; Lizensa support can help clarify the calculation.
Licence keys are delivered by email in under 60 seconds on average after payment confirmation. The email includes the key, download instructions, and an activation guide. Check your spam folder if it does not appear in your inbox, or contact support.
Yes. Every licence sold by Lizensa is sourced through authorised European distribution and is genuine, verified, and legally valid for activation across all 27 EU member states. You receive a full VAT invoice as proof of purchase.
Lizensa provides free multilingual technical support. If activation fails, verify internet connectivity, check that the key was entered correctly, and confirm the installed edition matches the licence. If the issue persists, contact Lizensa support with your order reference for guided assistance.
You may reinstall the software on the same licensed hardware or virtual machine as needed. Licence transfer rights depend on whether the licence was acquired with Software Assurance and the specific terms of the Microsoft Product Terms. Generally, perpetual licences assigned to a server remain with that server unless Software Assurance provides reassignment rights.
Yes. SQL Server 2025 Enterprise is supported on Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and Ubuntu. Container images are also available for Docker and Kubernetes deployments. Verify your specific distribution and kernel version against Microsoft's current support matrix.
Lizensa accepts SEPA bank transfer, iDEAL, BLIK, Google Pay, and major credit and debit cards including Visa and Mastercard. All payments are processed securely through Stripe.
Yes. Every purchase includes a downloadable VAT invoice suitable for business accounting and tax compliance. For B2B customers with a valid EU VAT ID, reverse-charge rules apply where eligible.
Lizensa offers a 14-day right of withdrawal for private consumers under EU consumer protection law. If the licence key has not been activated or disclosed, a refund can be processed. Contact support with your order details to initiate a return.
