Government and Public Sector Green IT Software - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The government and public sector green IT software market size is expected to increase from USD 1.83 billion in 2025 to USD 2.12 billion in 2026 and reach USD 4.71 billion by 2031, growing at a CAGR of 17.31% over 2026-2031. This report is Segmented by Offering (Software, and Services), Deployment (Cloud, On-Premises, and Hybrid), End User (Central and Federal Government, State and Local Government, Public Utilities and Public Agencies, and More), Application (Carbon Data Collection and Disclosure, and More), and Geography. The Market Forecasts are Provided in Terms of Value (USD).

Global Government and Public Sector Green IT Software Market Trends and Insights

Public Sector Net-Zero Procurement Requirements Reshape Contract Standards

Public procurement rules are pushing the government and public sector green IT software market away from voluntary reporting and toward contract-bound emissions documentation. The United Kingdom applied PPN 006 to major government contracts advertised from February 24, 2025, and the rule requires suppliers on contracts above GBP 5 million (USD 6.59 million) to submit carbon reduction plans as a condition of participation. That requirement changes software demand because agencies need systems that can collect, retain, and present supplier and operational emissions data in a form procurement teams can verify. It also brings together procurement, legal, finance, and sustainability teams on a single workflow, underscoring the value of centralized reporting and audit trails in the government and public sector green IT software market. Vendors that already fit formal public buying processes therefore gain an access advantage that can matter as much as feature depth when agencies evaluate bids.

Government Digital Modernization Mandates Accelerate Platform Consolidation

Digital modernization programs are widening the budgetary path for the government and public sector green IT software markets, as sustainability requirements are being built into broader technology renewal agendas. The United Kingdom's Defra Digital Sustainability Strategy 2025-2030 set a target to reduce IT carbon emissions by 16% by 2030 and required digital service suppliers with an annual contract value above GBP 1 million (USD 1.32 million) to hold externally verified carbon footprints and net-zero plans. The same strategy stated that Defra group IT operations generated 10,000 tonnes of CO2 equivalent in 2024, equal to 13% of the department's total emissions, which shows why software-backed tracking is moving closer to core IT governance. In the United States, the GSA's OneGov agreement with SAP in December 2025 offered federal agencies discounts of up to 80% across database, integration, analytics, and cloud tools, with projected savings of USD 165 million. These moves favor vendors that already sit within approved procurement and enterprise technology stacks, which support platform consolidation across the government and public-sector green IT software markets.

Fragmented Budget and Procurement Cycles Slow Discretionary Uptake

Annual budgeting structures continue to slow the government and public sector green IT software market, as sustainability tools often compete with higher-priority IT projects within the same funding cycle. In many agencies, cybersecurity, workforce systems, and legacy modernization still rank ahead of carbon management platforms in appropriations reviews, which delays rollouts even when mandates are clear. The GSA's OneGov agreement with SAP lowered entry costs through deep discounts and projected USD 165 million in savings, but the arrangement also showed that short-term procurement windows can shape adoption timing and renewal risk. The same challenge arises at the subnational level, where city, county, and state budget calendars often do not align with national reporting expectations so that the policy requirement can arrive before the budget authority. Vendors that offer phased deployment, pilot scopes, and modular pricing are better suited to move through this constraint in the government and public sector green IT software market.

Other drivers and restraints analyzed in the detailed report include:

• Rising Data Center Energy Costs Shift the Software ROI Case
• Sustainability Reporting Automation Replaces Spreadsheet Workflows
• Data Sovereignty Requirements Create Competing Architecture Demands

Segment Analysis

Carbon accounting and reporting software held 28.74% of the government and public sector green IT software market share in 2025, which made it the largest solution type at the start of the forecast period. That lead reflects the practical order of agency work, because public bodies first need a measured and auditable emissions baseline before they can set reduction targets, compare suppliers, or defend grant-linked disclosures. The category also benefits from how government buyers evaluate systems, since audit traceability and structured records matter as much as user features as compliance obligations expand. SAP's May 2026 announcement that its carbon accounting offering was recognized again in the IDC MarketScape reinforces the appeal of ERP-native architectures that align emissions records more closely with financial control practices.

Energy and power management software is gaining traction alongside the leading category, as agencies now face a stronger need to tie sustainability actions to operating efficiency and data center performance targets. Green procurement and supplier sustainability software is projected to expand at 18.12% CAGR through 2031, the fastest pace within the solution mix. EcoVadis and Workiva's May 2026 partnership shows why this category is moving quickly: supplier carbon data is being linked more directly into audit-ready reporting rather than staying in separate procurement systems. Sustainability data management platforms are also becoming increasingly important because agencies need a single environment to bring together accounting, procurement, and operational information without the need for repeated manual consolidation.

Cloud deployment accounted for 65.41% of revenue in 2025, which kept it well ahead of other deployment models in the government and public sector green IT software market. Agencies favor the cloud where possible because subscription delivery can shorten time to compliance and shift rule updates, maintenance, and release management toward the vendor. That matters in public settings, where internal IT teams often face limited capacity and need software that can stay current without extensive reconfiguration. Cloud also fits the wider pattern of government modernization programs that use negotiated procurement channels and approved platforms to accelerate adoption.

Hybrid deployment is projected to grow at 17.95% CAGR during 2026-2031, making it the fastest-rising model as buyers balance compliance speed with control over sensitive data. The European Commission's Sovereign Cloud Framework and France's 2026 directive on reducing extra-European dependencies both support this middle path by raising the bar for where and how public-sector data can be stored and processed. On-premises deployment, therefore, remains relevant for defense, national security, and agencies with strict operational data rules, even if it no longer sets the pace of growth. Vendors that can move data cleanly between local environments and compliant cloud layers are likely to capture a larger share of the government and public sector green IT software market as sovereignty requirements remain in place.

Complete Report Scope:

• By Solution Type
  • Carbon Accounting and Reporting Software
  • Energy and Power Management Software
  • IT Asset Lifecycle Management Software
  • Sustainability Data Management Platforms
  • Green Procurement and Supplier Sustainability Software
• By Deployment
  • Cloud
  • On-Premises
  • Hybrid
• By End User
  • Central and Federal Government
  • State and Local Government
  • Public Utilities and Public Agencies
  • Public Education and Public Healthcare Institutions
• By Application
  • Carbon Data Collection and Disclosure
  • Energy Optimization and Workload Scheduling
  • IT Asset Utilization and Lifecycle Optimization
  • Public Procurement and Supplier Emissions Tracking
  • Compliance, Audit, and ESG Workflow Automation
• By Geography
  • North America
    • United States
    • Canada
    • Mexico
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Europe
    • Germany
    • United Kingdom
    • France
    • Italy
    • Spain
    • Russia
    • Rest of Europe
  • Asia-Pacific
    • China
    • India
    • Japan
    • South Korea
    • Australia
    • Rest of Asia-Pacific
  • Middle East and Africa
    • Middle East
      • Saudi Arabia
      • United Arab Emirates
      • Turkey
      • Rest of Middle East
    • Africa
      • South Africa
      • Egypt
      • Rest of Africa

Geography Analysis

Europe accounted for a 34.56% share of the government and public sector green IT software market in 2025, maintaining its lead among regional markets. The region's position is supported by a dense policy landscape in which environmental compliance, procurement controls, and digital governance are advancing together rather than as separate agendas. The European Commission's Sovereign Cloud Framework made environmental sustainability one of the scored dimensions for public cloud procurement while also keeping sovereignty assurance central to adoption decisions. The United Kingdom added further momentum through public procurement and digital sustainability rules that place formal expectations on suppliers and departmental IT operations. As a result, Europe combines broad compliance pressure with procurement systems that can channel spending toward vendors already prepared for public-sector review.

North America was the second-largest regional market for government and public sector green IT software in 2025. In the United States, adoption is being shaped heavily by centralized procurement vehicles, which give large software vendors a faster route into federal estates than one-by-one agency sales. The GSA's OneGov agreement with SAP showed how federal bodies can scale access to analytics, integration, and cloud capabilities through negotiated discounts and common procurement terms. This structure supports volume deployment but also leaves room for specialist tools that provide deeper supplier, asset, or disclosure functionality alongside the main platform.

Asia-Pacific is projected to expand at a 18.45% CAGR during 2026-2031, making it the fastest-growing regional segment in the government and public sector green IT software market. The region is moving from policy planning to implementation, which is broadening demand for carbon accounting, lifecycle tracking, and procurement-oriented reporting tools. NTT Group's March 2026 release of a lifecycle CO2 calculation standard for software reflects a more formal treatment of software-related emissions in advanced Asia-Pacific markets. South America, the Middle East, and Africa are smaller bases today, yet the UAE pilot announced with Khazna, Agility, and the Ministry of Energy and Infrastructure shows that government energy management deployments are moving into active execution outside the two largest regions. This means future expansion outside Europe and North America is likely to begin with targeted public projects and then widen as agencies build internal capacity and procurement familiarity.

List of Companies Covered in this Report:

• Accenture plc
• Persefoni AI Inc.
• Cority Software Inc.
• Dakota Software Corporation
• Enablon SA
• Enviance, Inc.
• IBM Corporation
• Johnson Controls International plc
• Microsoft Corporation
• Oracle Corporation
• SAP SE
• Schneider Electric SE
• ServiceNow, Inc.
• Siemens AG
• Sphera Solutions, Inc.
• Sustainability Software Group, Inc.
• UL Solutions Inc.
• Workiva Inc.
• Wolters Kluwer N.V.
• Honeywell International Inc.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support