Suppliers starting with O


Oakland are a full-stack data consultancy with nearly 40 years’ experience in enabling organisations to drive value and innovation through their data. Our delivery spans over the following areas covering the full end-to-end data lifecycle: Data Strategy; Data Governance; Data Engineering and Platform; Data Analytics; Artificial Intelligence.

Oaklin Limited

Successful change is built on fresh ideas and years of experience - we bring both to deliver results for our clients. Whether we are enabling organisations to harness the power of new technologies, creating exceptional customer and operational performance, or building truly dynamic businesses, we help clients embrace organisational agility.

Oasis Discovery Partners Ltd

Oasis procures, secures and maintains legal technology for legal teams, law firms and the vendors that support them. Our unique “platform” approach delivers a custom suite of software in a fully-managed private cloud - providing access to leading eDiscovery applications, in world-class data centers, for a predictable monthly fee.

Objective Associates Limited

Providers of consultancy services related to Microsoft Azure, Amazon Web Services (AWS), Serverless Computing, SQL Performance Analysis, Sharepoint, Shopify, Magento, Amazon Marketplace, eBay Marketplace and DotNetNuke (DNN).

Objective Corporation Limited

Using Objective software, thousands of public sector organisations and regulated industries are shifting to being completely digital; where our customers can work from anywhere with access to information, governance guaranteed, and security assured. We invest significantly in ongoing development to deliver outstanding solutions which drive stronger national and community outcomes.

Objectivity Ltd

Objectivity delivers enterprise-level cloud solutions including the transformation, migration, integration, and support of web, mobile, and back-office applications. We employ agile methodologies, using technologies including low-code, AI, machine learning, chatbots, IoT, and data analytics. We are a Microsoft Gold Partner and are Cyber Essentials Plus, ISO:27001 and ISO:9001 certified.

Oceans Blue Limited

Award-winning Data Science company focussed exclusively on the NHS. We supply "A la carte" business intelligence, automation and predictive/classifier models to improve workforce effectiveness, patient safety, staff retention and compliance to policy.


Ocean Software designs, develops, and delivers Enterprise Software solutions for military, government, and corporate customers around the world. Ocean Software’s Operations and Training Management System, FlightPro®, is a comprehensive COTS product that provides clients the tools they need to ensure their Operations are optimised.


OCF is a specialist High Performance Computing (HPC), Storage and AI solutions and services provider offering professional services to design, deliver and support/manage research and technical computing solutions. Key specialisms include Linux, XCAT, Slurm, Ansible, Salt Stack, SpectrumScale, Lustre, BeeGFS, Object Storage, AI Frameworks, Data Science, Cloud, RedHat, IBM.

OCG Software Limited

Supplier Management Software as a Service

Ocient Inc.

Ocient delivers hyperscale data solutions for modern enterprises that derive value from rapid, continuous analysis of trillions of data records. With Ocient, organizations gain insights in “interactive time” – seconds not hours or days – via accelerated solutions that enable the deployment of new products, services, and revenue streams.


OCLC is a global library cooperative that provides shared technology services, original research and community programs for its membership and the library community at large. With thousands of library members in more than 100 countries, we come together as OCLC to make information more accessible and more useful.

OCS Consulting PLC

Staff based Systems and Information Technology provider. Flexible, responsive and commercially relevant Consultancy, Managed Services, Projects and Consultant Resourcing services. Legacy, current and leading edge technologies. Privately owned and established 1984 with offices in the UK, the Netherlands, Switzerland and Belgium. Personal, client-centric, results based and reputation (repeat business) driven.

Ocucon Ltd

We are an award-winning technology company developing innovative customer and market-driven software solutions to mitigate risk for organisations that engage with customers on their premises.


#1 Enterprise Data Platform for Salesforce. Global industry leaders use Odaseva to build a stronger Salesforce data value chain.

OD Consultancy Ltd

We provide secure file sharing solutions with a focus on security, simplicity and great customer support.

OfficeLabs Ltd

OfficeLabs’ mission is effective information management across the enterprise supplying products and expertise for Microsoft 365, including Teams, SharePoint, Power Platform, Gimmal and SAP. We help maximise productivity and business process efficiency and minimise exposure to risk. We develop and implement solutions on-premises, in the cloud and in hybrid environments.


Information Technology Services; Strategy & Architecture, Build & Implementation; Support & Maintenance.


Oksidia Oy is a Finnish Ed-Tech company and provides a cloud-based (SaaS) Music Hub Administration & Management system called Eepos.

OKTik Technology Limited

Customer focused strategic cloud transformation & engineering consultancy. Reliable, flexible partner with functional know-how. Our SME resources have in-depth expertise to manage projects in-line with your objectives and challenges. Our transformation framework has delivered success across several global enterprises and a number of public sector bodies.

Oleeo Limited

Oleeo is an award-winning provider of innovative recruitment software for the public sector. Established in 1995, Oleeo uses intelligent automation and machine learning to help companies discover unlimited sourcing potential to attract, engage and hire amazing, diverse teams. We enable recruiters to hire faster and more efficiently than ever before.

Olive Jar Digital

The teams we provide to deliver a complete solution are highly skilled with vast UK government experience. Work is fully managed by us, from start to finish, and with the extensive knowledge and experience our teams hold, it means we have many references of our great work to date.

Oliver Bernard

Specialising in modern Software Engineering, Infrastructure, Cloud, QA, Delivery and Transformation with a focus on promoting collaborative Agile and DevOps cultures.

OLM Systems

OLM is a technology company delivering user focused software solutions and technical services to Local Government in the Care environment

Omfax Systems Ltd

Omfax provides market leading housing repairs and enquiries diagnostic software to help social housing organisations improve customer experience. We work with all sizes of social housing providers giving tenants a seamless self-service experience, and contact centre advisors an easy to use and update diagnostic scripting platform.


Omilia offers Conversational AI solutions for a seamless human-like end-to-end conversational experience for customer care and self-service across all channels. Organisations can transform their call-centre into a next-generation digital experience.

Omniplex Learning

Omniplex Learning offers a complete eLearning solution, making the L&D journey seamless by providing easy access to digital learning tools and services in one place. Alongside in-house design and content services, expert training and digital adoption solutions, Omniplex Learning is the trusted partner for global brands Articulate, Docebo, and Vyond.


Omron is the number 1 cardiologist recommended brand for blood pressure monitors. Our >50 years history in providing solutions to support management of cardiovascular disease make us uniquely placed to understand the needs of both doctors and patients.


Provider of independent Software Testing and quality assurance, Functional, System, System Integration and User Acceptance Testing Services (UAT). Testing management and coordination. SAP S4 Hanna configuration consultancy.


One Beyond creates and maintains powerful software applications for Enterprise organisations and Public Sector bodies. The team specialises in Bespoke Software Development, Agile Teams and Digital Transformation. We combine business and process acumen with creativity and excellence to deliver the highest quality Digital Outcomes be it web, mobile or cloud.

One Big Circle Ltd

Specialists in Intelligent Digital Video using cloud-based technologies in Critical National Infrastructure including Rail and Highways. We provide innovative end-to-end solutions which integrate effectively with incumbent technologies. Our IIoT Edge Device product (AIVR) enables smart video capture and ML on the move to enhance performance, operations and safety.


Onecom is a supplier of managed customer solutions in the IT technology and communications arena. We provide mobile, digital and IP solutions, hosted, local, or in the cloud. We help organisation transform from legacy solutions through hybrid environments to fully digital and cloud based deployments, always with a consultative approach.


We provide project management and governance expertise including assessing and rescuing failing projects. We set up and deliver end-to-end business change projects and conduct assurance reviews. We share our knowledge and expertise, training clients in project management and providing our bespoke toolkit and templates to aid clients in successful delivery.

Onefile Ltd

OneFile supplies cloud based software into the vocational training sector primarily the post 16 sector - apprenticeships, traineeships, employability, BTECs and bespoke qualifications. Over 700 customers including FE colleges, training providers, universities and employers.

O'Neill Advanced Consulting

Professional services delivery partner specialising in PPM, PMO, Procurement and Portfolio Office. Our extensive experience, collaborative style and results-focused approach has supported government clients successfully implement improved PPM disciplines. Specialisms: Planning, Outcomes Based, Standards, Digital Identity, EUExit, Data Handling, GMPP, Governance, Assurance, Management Reporting, RAID, Training, Legacy disaggregation, Implementation, Transformation.


OnePlanet provides technology solutions to enable local governments, organisations and businesses to tackle climate change and build resilient, sustainable futures. The innovative technology 'connects-the-dots' across action plans to join up health, climate, nature recovery and more. OnePlanet takes a collaborative, systems approach to solving issues and delivering effective action faster.

One Plus One

Since our inception, 50 years ago, we have been researching relationships, what makes them work, why they break down, the impact they can have on children and the power of a good relationship. We have been delivering digital services for the last 10 years and specialise in behaviour change,

Onepoint Consulting Ltd

Established in 2005, Onepoint Consulting is a solution and enterprise architecture consultancy.We specialise in complex deadline driven data and digital transformation projects delivered both in the UK / worldwide. We have extensive experience of solving data management challenges using a variety of methods, architectures and open source based solutions.

Oneserve Ltd

Empower your office team and their field based colleagues to constantly improve business efficiencies and deliver a compliant, customer focused service. Our highly intuitive Field Service Management software enables you to intelligently schedule resources, record job details, reorder parts and monitor performance, all in one cloud-based system.

Onestream Software LLC

OneStream Software provides a revolutionary CPM platform. OneStream Cloud unifies and simplifies financial consolidation, planning, reporting, analytics and financial data quality for sophisticated organisations.


OneTouch Health is a multi-functional platform allowing care providers to manage every aspect of their clients needs through sharing relevant information with key people involved in the care delivery. Care providers can manage a range of topics such as Care Planning, eMAR, Time/Attendance, Payroll/Invoicing, HR and more.

OnGen Ltd

Backed by Scottish Enterprise and the Scottish Investment Bank, OnGen has developed OnGen Expert, an onsite renewable energy feasibility assessment tool. Objective assessments are produced in minutes based on energy demand and geophysical information. Technologies include solar, wind, biomass, CHP, ground source heat, air source heat, solar thermal & storage.


OES provides learning design and production services to help clients create high-quality, learner-centric online courses. Our expertise in online pedagogy, learning design and education technology ensures a central focus on learner success, maximising platform capability and applying rigorous QA frameworks to deliver excellent learning experiences in the digital environment.

ONQU Holdings Limited

ONQU delivers Robotic Process Automation (RPA) using UiPath and Cloud Database Migration Software using 1Place1Cloud for migrating Oracle, MySQL and SQL Server to Private/Public Clouds such as Amazon AWS and Azure. As a G-Cloud 12 authorised reseller and Certified Partner of UiPath and 1Place1Cloud Software ONQU delivers Cloud Automation.


With over two billion notifications sent annually and over 25 years of experience, OnSolve delivers critical event management solutions via risk intelligence, critical communications and incident management. Backed by our unmatched industry expertise, customers keep people informed, instill confidence, mitigate disruptions, improve operational outcomes, protect assets and save lives.

Onsystem Logic, LLC

High assurance application hardening for endpoints.


Grow your business and provide better care, anytime, anywhere, with our evolving NFC based domiciliary care management and rostering software. OnePlan removes hours of paper work allowing. We are extremely affordable allowing you to expend your business and the quality of care you and your clients deserve

OpenCampus UK Limited

OpenCampus powers the first community driven open source campus management solution. It combines SIS, LMS and ERP features in a flexible and extendable framework solution based on Drupal and is used by thousands of users in Germany, Austria, Switzerland and the UK.

Opencast Software Europe Ltd

Opencast is an independently owned full service UK technology consultancy, specialising in Government and Health. We have 350+ UK-based consultants, 95%+ permanent, all BPSS/SC-cleared. We bring expertise in all 'Government Digital and Data Profession Capability' roles including: Architecture, Data, Product & Delivery, QAT, Software Development and User-centred Design.


Open Intelligent Technology Limited (OpenIT) offers easy to-plugin modules and secure technology for banks and organisations to publish secure Financial APIs and build applications that leverage Open Banking. Our technology removes the complexity around multi-geography regulatory Open Banking APIs and extends capabilities to Embedded Finance, and broader Panoramic Banking.

Open Medical Ltd

Open Medical Ltd provides reliable, user-focused, clinical coordination software proven to optimise hospital efficiency and improve patient safety.

Open Sky Data Systems

OpenSky are a leading AI-powered digital transformation specialist, serving government for over 20 years with Innovation-led, Excellence Driven, solutions. With continuous R&D investment, we deliver advisory, intelligent automation, app modernization, data & AI solutions. Our Customer-first approach drives value through partnership. Microsoft Solutions Partner. ISO and Cyber Essentials certified.

OpenText Corporation

OpenText is the leader in Enterprise Information Management (EIM). Our EIM products enable businesses to grow faster, lower operational costs, and reduce information governance and security risks by improving business insight, impact and process speed.


We are an independent vendor neutral organisation that provide technical (IT) consultancy managed services and solutions that make business technology transformation projects successful. Whether you need a partner to scope a project, build a proof of concept, design the architecture, handle the testing, or manage everything from start to finish.

Optimised Solution

Providing Digital Transformation Services for Health and Social Care, with a commitment to working closely with our partners towards the realisation of their digital strategies. Proven track record in the delivery and implementation of innovative solutions, including analysis of issues being experienced and design of bespoke systems to resolve them.

Optimising IT Ltd

Optimising IT are a national Consultancy and Managed IT Service provider that major on Microsoft cloud including strategy, migration and support. We provide a full-service IT offering including; service desk, desktop support, infrastructure monitoring & support, cloud platforms and IT transformation & information security consultancy.

Optimizely AB

We unlock digital potential by reinventing how marketing and product teams work to create and optimize digital experiences across all channels. With our leading digital experience platform (DXP), we help companies around the world orchestrate their entire content lifecycle, monetize every digital experience and experiment across all customer touchpoints.


Telephony Cost Reduction and Monitoring Billmonitor offers the optimum way to choose and manage mobile phone services, facilitating better decision making through improved cost monitoring and reporting. Combining our proprietary software with a dedicated team, Billmonitor finds the mobile plan that works best, saving our clients money and time.

Optum Health Solutions (UK) Ltd

Optum® is a leading health services and innovation company dedicated to helping make the health system work better for everyone. Optum combines technology, data and expertise to improve the delivery, quality and efficiency of healthcare and has been in the UK healthcare arena since 2002.

Optus Homes

Tenant Self-Serve. Supplier of SaaS tenant management solutions for the social housing sector -- from the smallest to the largest housing associations. Intuitive and powerful mobile app and portal solutions that offer Convenience for Tenants and Efficiency for Landlords.

Opus 2 International

Opus 2 provides secure, cloud-based legal technology and services to connect people, case information and conduct hassle-free hearings. The Opus 2 helps teams deliver seamless proceedings, from preparation to conclusion, integrating the electronic bundle with Realtime (live feed) transcription and the electronic presentation of evidence (EPE).

Opus Telecoms

Opus is an established, trusted, privately owned communications company, proudly holding the highest partner accreditations from leading manufacturers such as Mitel, Cirrus, Gamma and 8×8 and successfully being awarded and retaining the most important UK and international standards for our industry around Quality, Cyber Security, Service and Environment.

Oracle Corporation UK Limited

Oracle Corporation is a global IT supplier delivering software, systems and cloud services to public and private sector customers and our SaaS offerings cover a wide range of business functions. Oracle has invested in a UK datacenters to supply to G-Cloud customers; this facility is currently undergoing PSN accreditation.

Orbis Protect Ltd

Leading supplier of people protection and lone worker services


Orbitá provides data, information and analytical services to procurement, commissioning, and contract management professionals. Our data warehouse offers self-service spend and supplier data and Orbitá Plus provides access to our collaborative market intelligence platform, GHG emission and social value benefit tracking, cost modelling, benchmarking, compliance monitoring and training services.

Orbus Software

Orbus Software is a global provider of cloud software which helps organisations deliver successful transformation outcomes. OrbusInfinity is cloud-native Enterprise Transformation Platform, providing a digital blueprint which enables leadership to make informed strategic decisions. It includes solutions for Enterprise Architecture, IT Portfolio Management, Strategic Planning, Risk and Resiliency, Sustainability Management.


Orcro specialises in Open Source compliance consultancy, and is an OpenChain partner. Headed by Andrew Katz, a solicitor practising open source law, our team's expertise includes software engineering, dev-ops, training, open source community experts and enterprise change management.

Orcuma Ltd

Multi-agency case management safer communities software. Supporting victims and vulnerable people across Councils, Police, Fire and Rescue Services, Restorative Justice providers, Victim support providers, Domestic Abuse teams and Community safety teams. Supply, implementation, hosting and support/maintenance. Pre and post implementation services, full disaster recovery and data backup service.

O'Reilly Media, Inc.

The O'Reilly learning platform is an online learning solution that provides access to digitized books, videos, and related media to support your employees in performing job tasks and with learning needs. Access is provided via the internet and it is based on a subscription agreement.


Orgvue is the leading organisational design and workforce planning platform of choice for organisations that strive to continually evolve. UK headquartered, Orgvue is used by UK public sector and well-known enterprises and consultancies to spot trends, capitalise on opportunities and plan for what’s next. Right people, right work, right cost.


Origina is a global provider of third-party IBM and HCL software maintenance that Gartner recognizes as a cost-intelligent alternative to traditional software vendor maintenance. Our global independent IBM product experts work to protect, extend, and enhance all versions of IBM® and HCL® Passport Advantage software on open systems and mainframes.

Orion Health Ltd

Orion Health is a global leader in clinical information access and interfacing technologies. Specialising in health IT, Orion Health provides innovative software that integrates and enhances point of care systems, improving efficiency, clinical decision-making, patient safety, quality of care and ultimately patient outcomes.


Orlo, the leading UK social media management platform tailored for public sectors, is trusted by over 400 organisations, including 75% of UK constabularies, 30% of local councils, and numerous housing associations. Leveraging Orlo's AI technology, they enhance community connections through digital channels, elevating engagement, measuring trust, and managing reputation effectively.

Orovia Group Ltd

We have specialised in the education sector for over a decade and provide payroll, HR and budget planning software. We support over 4000 schools and academies nationally. Our understanding and supportive approach to our customers’ needs has resulted in a client retention rate of over 97%.

Orpheus Cyber

Orpheus' award-winning platform is designed to provide cyber risk management of organisation's attack surface and of its third parties coupled with threat-led risk based vulnerability management. We also provide highly rated GBEST, CBEST, TBEST Threat Intelligence testing through our skilled and accredited threat intelligence professionals.

OrthoGraph Számítástechnikai Fejlesztő Korlátolt Felelősségű Társaság

OrthoGraph, the Operational BIM ecosystem is tailor made for Facility and Maintenance Management. With this powerful SaaS you can digitize building data straight to BIM with simple and rugged tools. Add graphical asset inventory to further boost your Digital Twin with barcodes, photos, panoramas, videos.

Ortivus UK Ltd

With more than 30 years of experience in cardiology and medical technology, Ortivus are today one of the market leaders in e-health.


Ortom8 provide cloud-based Workload Automation Managed Services to schedule, control and monitor workflows without compromising quality, delivery or security. We can manage your existing Control-M platform, or migrate your legacy workload automation product onto an enterprise-scale, SaaS, solution to deliver on-demand workload management that flexes to your changing business needs.

Ortus Solutions limited

Ortus-iHealth’s Virtual Ward platform enables the digitisation of outpatient care pathways. Through one unified solution, healthcare professionals can deliver personalised and remote care, using digital consent tools, remote patient monitoring, and vitals measuring software. Remote consultations can be completed via audio, video, or asynchronous support, empowering and enabling patients.


OryxAlign are a well-established and successful managed IT services provider (MSP) We design and enable the procurement, implementation and management of modern technologies through earned and trusted partnership with our clients. Our IT support, infrastructure management and cybersecurity services are delivered 24x7x365 by committed, certified and personable global delivery teams.


Highly performant and secure cloud services to accelerate productivity, optimise IT, and maximise return on investment.

Ostara Systems Ltd

Ostara Systems Ltd is one of the UK’s leading providers in the CAFM sector. Established over 16 years ago by an experienced team of facilities management and software professionals, the Ostara CAFM Solution continues to be developed and is hosted in the UK, and is now used in 14 countries.

Otagem Consulting Limited

Otagem helps your organisation get the very best out of Microsoft 365. We provide a wide range of services for the Microsoft 365 platform, including: - Content Management using SharePoint Online - Business Process Automation via PowerApps and PowerAutomate - Reporting via PowerBI - enhanced End User Training.


ON THE MARK are global leaders in collaborative operating model modernisations and organisation design. We help businesses adapt and redesign the end-to-end operating model so it can migrate, integrate and fully optimise Cloud solutions.

Our Learning Cloud Limited

Specialising in digital transformation through full cloud-powered solutions. Experts in assessing & improving IT systems. We build user-friendly solutions to improve collaboration, facilitate personalisation and place inclusivity and accessibility at the heart of our offer. We offer ongoing strategic and technical support to maximise efficiencies and user experience.

Outcomes Based Healthcare

OBH are a mission-driven, social purpose, health data analytics organisation. OBH use integrated health and care data, spanning multiple care settings, to derive accurate and meaningful insights about population segments, and outcomes, to support service transformation. OBH were awarded a prestigious Queen’s Award for Enterprise- Innovation in 2021.