What Constellia does

Constellia is a UK-headquartered procurement solutions provider, founded in 2007 and based in London with operational offices in Nottingham and (from 2026) Newcastle. The company operates a neutral vendor managed service provider (MSP) model, acting as a thin prime contractor between public sector buyers and a pre-approved supply chain. Its core technology is a cloud-based Source-to-Pay platform combined with a dynamic marketplace of 4,000+ suppliers across 400+ spend subcategories, providing real-time visibility, SoW-based outcome procurement, and social value integration via a partnership with whatimpact.com. Constellia accesses clients exclusively through UK public procurement frameworks (AEC Omni CPV, AEC Neutral Vendor, SEWTAPS, ESPO MSTAR4 Lot 4, NVFi, NEPRO Innovation) and direct strategic partnerships with organisations such as Bristol City Council, the MOD via Commercial X, NEPO and London Borough of Lambeth.

Constellia generates revenue primarily through supplier-absorbed transaction fees built into savings achieved versus client budgets, supplemented by framework access fees and outcome-based project pricing. Its primary customer base is the UK public sector — central government, local government, NHS, education, blue light services, housing and utilities — with a secondary private sector MSP solution for consultancy and tail-spend management; it claims the position of the UK's only neutral vendor enabling all four procurement categories (services, goods, works, technology) through a single compliant route. The firm manages over £400m of spend across 240+ organisations and is on a stated path to £1bn under management by 2028.

In November 2025, Constellia transferred majority ownership to an Employee Ownership Trust, making employees majority owners and beneficiaries. The company has been recognised across three consecutive Sunday Times 100 rankings (13th in 2024, 56th in 2025, recognised in 2026), won the GO Awards Contractor of the Year 2024/25, and holds ISO 27001, ISO 9001 and Cyber Essentials Plus certifications. The product portfolio has expanded through specialised sub-brands including Agora Legal (legal services), Constellia Works (construction), Constellia for Schools (education), NHS/Healthcare Procurement Solution, and the Defence-focused NVFi framework.

Name

Constellia

Legal name

Constellia Ltd

Website

https://constellia.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Constellia is a UK procurement solutions provider operating a neutral vendor MSP model, connecting 240+ public and private sector clients with 4,000+ pre-approved suppliers through compliant UK procurement frameworks and managing over £400m of spend.

Ownership category

akta.pro rank

Product category

Public Sector Procurement Services

NAICS

Software Publishers (51321), Custom Computer Programming Services (541511)

SIC

Services-Facilities Support Management Services (8744), Services-Prepackaged Software (7372)

akta.pro primary industry

Vendor Management System (VMS) & MSP-Led Contractor Programs (BPACAGAF)

akta.pro secondary industries

Sourcing Support & RFx Administration (RFI/RFP/RFQ) (BPAAAJAC), Contract Administration Support (PO/Contract Compliance) (BPAAAJAE), Compliance, Risk & Supplier Due Diligence (KYC/ESG/Sanctions) (BPAAAJAK), Public Health Contracts, Procurement & Vendor Management (HLAJALAE)

Keywords

• Neutral vendor procurement
• Managed service procurement
• Public sector procurement
• Source-to-pay platform
• Supplier marketplace

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Managed Service Provider (MSP) Fees: Constellia acts as a thin prime contractor (neutral vendor), absorbing fees from suppliers within the savings negotiated vs. budget. Supplier-absorbed service fees are built into the savings achieved, representing a further saving of typically 3-3.5% vs. other providers for direct awards. This is the primary revenue stream as a managed service provider platform.
2. Professional Services - Outcome-Based Procurement: Constellia's Statement of Work (SoW) procurement model charges fees based on project value and sourcing route. The model emphasizes paying for outcomes, not hours, with Constellia's fees embedded within the savings delivered.
3. Framework Access Fees: Revenue generated through multiple national public procurement frameworks including AEC Omni CPV (£18 billion), AEC Neutral Vendor (£6 billion), NVFi (£400 million), and NEPRO Innovation (£20 billion). Constellia is the appointed neutral vendor across these frameworks, earning fees as suppliers are engaged.

Pricing tiers

Go-to-market motion2 records

Distribution channels7 records

Marketing channels8 records

Core offering

Constellia operates a Neutral Vendor Managed Service Provider (MSP) platform that acts as a thin prime contractor between public and private sector buyers and a marketplace of 4,000+ pre-approved suppliers. The platform manages the full Source-to-Pay procurement lifecycle for services, goods, works, and technology, delivering compliant routes to market under Public Contract Regulations 2015 and the Procurement Act 2023.

Product overview

Constellia operates as a neutral vendor procurement platform offering a portfolio of interconnected products and frameworks. The core Source-to-Pay Platform provides end-to-end procurement management, which is complemented by specialised sub-products including the Neutral Vendor Framework for Innovation (defence sector), NHS/Healthcare Procurement Solution, Agora Legal (digital legal services marketplace with Bristol City Council), Education Procurement Solution, Construction Procurement, and Constellia Works. The platform also includes a Supplier Marketplace and Social Value Matcher tool (via whatimpact.com partnership) to help buyers meet social value commitments. The products share the same underlying platform infrastructure and provide access to a common vetted supplier network while serving different sector-specific needs.

Differentiator

Problem solved

Functional benefit

Brands

• NEPRO Innovation: A £20 billion public sector procurement platform delivered in partnership with NEPO, providing a neutral vendor solution for goods, services, works, and technology.
• Agora Legal
• NVFi (Neutral Vendor Framework for Innovation)
• Constellia Works
• Constellia for Schools

Products and services

• Source-to-Pay Platform Comprehensive cloud-based procurement platform enabling organisations to manage the complete procurement lifecycle from sourcing to payment, with rapid award capabilities, budget savings visibility, and spend analytics. Built for public and private sector organisations managing complex procurement.
• Constellia Works Managed marketplace helping contractors, suppliers, and the public sector deliver construction projects faster by connecting them with vetted suppliers. Positioned as the only construction procurement solution using the neutral vendor model.
• Agora Legal Digital legal services marketplace developed in partnership with Bristol City Council, providing UK public sector teams with compliant access to legal services through a Flexible Purchasing System with pre-qualified legal suppliers.
• Neutral Vendor Framework for Innovation (NVFi) Specialised procurement framework for defence and innovation sectors enabling compliant access to innovative technological suppliers across MOD, National Security organisations, and wider UK government. Covers 14 science and technology areas including AI, cyber security, quantum, robotics, and sensors.
• NEPRO Innovation £20 billion public sector procurement platform delivered in partnership with NEPO (North East Procurement Organisation), providing a neutral vendor solution for goods, services, works, and technology across the UK public sector running until 2030.
• Constellia for Schools Dedicated procurement solution for multi-academy trusts (MATs) and schools enabling compliant, efficient procurement of goods, works, and services across multiple schools with varying contract end dates. Achieves savings of up to 20%.
• Private Sector MSP Solution Private sector managed service provider solution enabling corporate leaders to gain control of consultancy and wider services tail spend, with a best practice toolkit and benchmark data to secure best value and ensure successful outcomes.
• NHS/Healthcare Procurement Solution Tailored procurement solution for NHS trusts and healthcare organisations featuring the Salutare Clearinghouse solution for compliance and value for money. Used for large-scale NHS transformation projects managing billions in expenditure.
• Social Value Matcher Tool that matches organisations with social value requirements to suppliers who can meet those commitments, integrated in partnership with whatimpact.com. Provides suppliers access to dedicated social value expertise, project-based impact reporting, and discounted rates.

Quantifiable outcome

• 21% savings on budget (average across public sector clients in 2023)
• +7 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Seven partnerships are on record, tiered flagship, core and minor.

• NEPO (North East Procurement Organisation)flagshipStrategic or Co-development Partner · 26 February 2026NEPO and Constellia partnered to launch NEPRO Innovation, a £20bn public sector procurement platform providing a neutral vendor solution for goods, services, works, and technology across the UK public sector. The partnership creates more than 30 jobs at a new Newcastle office and extends Constellia's marketplace access to public sector bodies across the UK through a single compliant agreement running until 2030.
• whatimpact.comcoreStrategic or Co-development Partner · 26 October 2024Constellia partnered with whatimpact.com, a social value management and matchmaking platform, to maximise opportunities for suppliers to deliver tangible social value to public sector and utility clients. The partnership provides suppliers access to dedicated social value expertise, project-based impact reporting, and discounted rates for matching with social value activities. Also enables charities and social enterprises to connect with supplier contracts.
• London Borough of LambethcoreStrategic or Co-development Partner · 1 October 2024Lambeth appointed Constellia as sole provider for professional services procurement under the Lambeth Temporary Resourcing Services Contract 2024. Partnership enables Lambeth to access local MSMEs, drive social value, and achieve cost savings through Constellia's marketplace and neutral vendor solution.
• Commercial X (MOD)flagshipChannel Partner/ Reseller/ Distributor · 4 September 2024Commercial X, the flagship Defence Commercial programme within the Ministry of Defence, awarded Constellia the Neutral Vendor Framework for Innovation (NVFi) to deliver procurement of innovative technological goods and services. The framework is available to MOD, National Security organisations and wider UK government. 14 science and technology areas covered including AI, cyber security, quantum, robotics, and sensors.
• Pro Commercial Solutions (PCS)coreStrategic or Co-development Partner · 11 April 2024Constellia partnered with PCS, a team of commercial professionals with over eight decades of combined experience across public and private sectors, to support strategic delivery of its Neutral Vendor solution across central government, Arm's Length Bodies (ALBs) and certain private sector organisations. PCS has a track record of successfully delivering total workforce solutions including SoW across central government.
• Bristol City CouncilflagshipStrategic or Co-development Partner · 22 January 2024Strategic partnership for professional services spend enabling Bristol City Council to have full control over its professional services spend, enhance access to local suppliers, and drive social value delivery and cost savings. Bristol also partnered with Constellia to develop Agora Legal, a Flexible Purchasing System for legal services procurement. Bristol nominated Constellia for GO Awards Contractor of the Year 2024/25.
• eXceedingminorStrategic or Co-development PartnerConstellia partnered with eXceeding to develop a goods and works marketplace via the AEC framework, extending the neutral vendor model's category reach into goods and construction.

Scale indicators13 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Proxima: Proxima is a procurement consultancy that helps corporate leaders manage tail spend and consulting engagements, directly competing with Constellia's private sector MSP solution and broader category management approach.
• Morson Group: Morson is a UK-based staffing and MSP provider with neutral vendor capabilities, serving both public and private sector clients. Comparable to Constellia's neutral vendor model for contingent workforce and project-based procurement.
• Giant Group: Giant Group (now under Brookfield) is a UK-based provider of contractor management, accountancy, and umbrella employment services with MSP capabilities. Comparable to Constellia's neutral vendor model for managing contingent workforce and contractor compliance.
• Efficio: Efficio is a global procurement and supply chain consultancy delivering procurement transformation, cost reduction, and managed services. Comparable to Constellia in serving public and private sector clients with procurement expertise and managed service delivery.
• Arvato: Arvato (Bertelsmann subsidiary) provides BPO services including procurement and supply chain management across multiple industries. Comparable as a large-scale managed services provider that competes for procurement outsourcing engagements.

Broad incumbents

• Crown Commercial Service: CCS is the UK's largest public procurement organization, operating national frameworks available to the entire UK public sector. As a broader incumbent with overlapping framework offerings, CCS competes with Constellia for buyer attention while also being a potential channel.
• ESPO: ESPO is a public sector owned procurement organization operating national frameworks including MSTAR4 (which Constellia is on Lot 4). It is both a peer and a channel partner, offering comparable framework-based procurement services to local authorities and schools.
• YPO: YPO is a UK public sector procurement organization owned by local authorities, providing framework agreements for goods and services. Comparable as a regional incumbent offering neutral vendor and framework-based procurement to the same public sector clients.

Emerging players

• Keelvar: Keelvar provides AI-powered procurement sourcing software that automates sourcing events and supplier selection. An emerging technology player that intersects with Constellia's marketplace by offering digital sourcing capabilities to procurement teams.
• Xoomworks: Xoomworks is a specialist procurement and supply chain consultancy offering managed services and technology implementations. An emerging peer with overlapping capabilities in procurement transformation and managed service delivery to mid-market and public sector clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/constellia

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Constellia