Suppliers starting with O


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.

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

Objective Corporation is an established leader and specialist provider of proven content, collaboration & process management solutions for the public sector. Our solutions empower public sector effectiveness, efficiency and transparency helping governments deliver better services to the community at a lower cost.

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.

OBM IT Consultancy

Delivery of IT Service Management solutions including - Development of Service Management Frameworks , SIAM development , Service Management process and tool configuration and delivery , Target Operating Model , Service Management Maturity Reviews , Service Management consultancy and contract services , Project Management consultancy and contract services

OccupEye Limited

OccupEye is the best-in-class smart workspace sensor technology from FM:Systems. A mature solution, evolved from initial Public Sector deployments dating back to 2012, OccupEye continues to assist organisations across Government, Health and Education to optimise the efficiency of their workspace whilst delivering enhanced colleague experiences.

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.

OCF IT Security Ltd

Independent CESG Certified Cyber Security Consultancy specialising in public sector information security including PSN, G-Cloud, CESG Certified Information Security Professionals and ISO 27001.

OCF plc

OCF is a specialist High Performance Computing (HPC), Storage and AI solutions integrator offering solution and services to enable cloud adoption in this market.


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.


CANCOM specialises in delivering better business outcomes by providing technology solutions built on world-class products and services. Our Managed Services provide a range of hosting and services from our own secure, resilient UK Data Centres built to exceed Tier 3 standards. We hold “OFFICIAL” status, N3 Aggregator & HSCN Supplier.

Octavia Software

Established provider to the social housing/voluntary sector of effective software solutions and Apps operational on any platform. Our products are developed/designed using Microsoft tools and record all aspects of service monitoring, delivery and outcomes. Integration with other software saving time and money while providing evidence of compliance across services.

OD Consultancy Ltd

Provide secure file sharing solutions with a focus on simplicity and great customer support.

OfficeLabs Ltd

OfficeLabs’ mission is effective information management across the enterprise supplying products and expertise for Microsoft 365, including 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.

Oho Group Limited

Oho Group Ltd is one of the UK’s leading niche IT and Electronic Engineering recruitment consultancies. As well as contract & permanent recruitment, we offer workforce planning, bench-marking and our market monitoring service, that provides market intelligence, salary comparisons and contract rate advice

Olive Jar Digital

The teams we provide to deliver a complete solution are highly skilled and boast vast amounts of government experience. Work is fully managed by us, from start to finish, and with the immense knowledge and experience our teams hold, it means we've 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

Omerta IT

Omerta IT is a leading Cloud & Cyber Security Consultancy, providing Services & Consultants to both the Public & Private sectors. Offering Technical Consultancy, Project Delivery & Cyber Security Operations Support to help deliver & maintain secure Public Sector Cloud & Digital Migration, Infrastructure & Networks through flexible service.

Omkaar Systems Limited

Omkaar Systems has been delivering full cycle software development services to customers for more than a decade. Omkaar Systems are experts in Cloud-based or Resident Big Data/ NoSQL Solutions. We have nearly 14 years of experience in setting up data warehousing solutions for Government, Banking and Publishing clients.

On Direct Business Services Limited

Increase your business productivity and growth with cloud IT. Cloud Direct will guide and manage your entire cloud journey to meet your security, compliance and performance needs. Since 2003, we’ve helped move over 4,000 organisations to the cloud. We’re a Microsoft Azure Expert MSP, Gold Partner and ISO accredited.

One Big Circle Ltd

Specialists in Intelligent Digital Video using cloud-based technologies. 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.

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.

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.


Lorien and onezeero are sister brands that work collaboratively to provide best in class technology solutions. Both brands share the same infrastructure, client insight, values and sector specialism, but differ in delivery. Lorien provides outsourced solutions whereas onezeero delivers specialist campaigns.

OnGen Ltd

Backed by Scottish Enterprise and the Scottish Investment Bank, OnGen has developed the 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.

ONI plc

ONI plc is a leading provider of IT solutions and services to the Public Sector. With our own Tier 3+ Data Centre facility, we offer a unique blend of cloud, on-site and hybrid solutions. Our areas of expertise include; core infrastructure, storage, collaboration, networks, contact centre, data centre and security.

ONQU Holdings Limited

ONQU delivers Robotic Process Automation (RPA) using UiPath and OCR/ICR with ABBYY. As a G-Cloud 11 authorised reseller and Certified Partner of UiPath and ABBYY products users can be assured of our expertise including Security Cleared qualified personnel. Please visit to discuss your requirements.


State-of-the-art, two-way communication solutions ensure effective, reliable and documented alerts, responses and coordination. Messages are transmitted instantly to multiple devices, increasing the likelihood of quick actions. OnSolve provides efficient, reliable and cost-effective service with all of the tools and support required to effectively manage all of your critical communications.

Onwave UK Ltd

A technology company using the best available connectivity options to achieve better business performance for our customers in the cloud.

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

We provide solutions, via consultancy, an outsourced software engineering team, or by building customised software. We help clients manage and overcome the challenges they are facing and we help organisations transform their technical delivery via agile coaching, user centred design and the use of eXtreme Programming (XP) practices.

OpenCell Limited

StrattoOpencell offer Indoor Mobile Signal as a Service. We partner with all the UK mobile network operators, extending their coverage indoors. We support your: Employees/contractors to use their own devices, service users to connect, IT by providing resilient layers of connectivity, to enhance mobile signal. With us, you have network.


Opendium's online safety systems have been making schools safer since 2005. Sector leading filtering for your school - request a demo:

Open Medical Ltd

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


OpenPlay provides a booking and membership management system for sports, leisure and cultural facilities and activity providers. Its mission is to use innovation around the customer experience to get more people active.

Open Sky Data Systems

As Gov-Tech digital transformation specialists, we deliver superior, future-proofed citizen access. Our innovative customised solutions empower businesses to increase organisational efficiency, productivity and revenue optimisation. For 15 years, our outstanding delivery of Microsoft products has enabled millions of users, with user friendly access to transport, waste, housing and health systems.

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 help organisations deliver measurable, sustainable benefits through capability management, either via 360 feedback or competency assessment. We provide software to define the competencies and capability that you need, assess employees' levels of competence and capability, develop them via targeted interventions and deliver measurable, sustainable results to improve performance.

Opsgility Limited

We are an enterprise training vendor focused on the Microsoft Cloud, with the broadest and deepest range of training on Azure. We deliver on-site classes from expert instructors, from certification to deep-dive hackathons. Our SkillMeUp service provides online videos, labs, and extremely cost-effective online instructor-led training for Azure certifications.

OpticoreIT Ltd

Opticore is an IT consultancy created to bridge a gap in the market between the major IT services providers and the contract market. We provide network consultancy, design, implementation and support associated project & programme management services. Our current client portfolio consists of medium/large corporates across a number of sectors.

Optima Diagnostics Ltd

Optima develops, maintains and hosts its OSHENS software application. OSHENS is a health and safety management platform that assists organisations of all sizes with an array of tasks including accident reporting and investigation, risk assessment, audit, inspection and corrective/preventive action planning.

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.

Optisource Technology Solutions Limited

Optisource have considerable experience providing solution and support in delivering digital projects.In today’s rapidly evolving technology environment building for the future means taking bold chances and making insightful decisions when it comes to Software. We are ready to work with you to ensure a high standard of quality is maintained.

Optum Health Solutions (UK) Ltd

Clinically-led and exclusively health and care focussed, Optum combines technology, data and expertise to improve the delivery, quality and efficiency of healthcare - delivering intelligent, integrated solutions that help modernise the health system and make it work better for everyone. We have been serving the NHS since 2002.

Optumis Limited

Optumis specializes in developing Enterprise IT Systems and Service Management solutions in the Cloud. We have proven experience of delivering innovative solutions of exceptional value to organisations wishing to improve their IT processes. We assist customers during the planning, development, integration and implementation of Cloud based ITSM solutions.

Opus 2 International

The Opus 2 platform is a document management and electronic bundling tool, which has made paperless proceedings a reality and allows case teams to access, share and manage their documents and transcripts throughout the course of proceedings. It also encompasses our realtime transcription and integrated electronic presentation of evidence service.

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.


Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group. We strive to protect freedom and build a safer digital society. We are a threat research and intelligence-driven security provider offering unparalleled access to current and emerging threats.

Orangeleaf Systems Ltd

Digital Heritage Consultants working within the Archives, Museums and Archaeology sectors.

Orange Maple Ltd

Orangemaple aims to enhance innovative government. As a company we specialises in business transformation, agile development, user centred design and product development.


ORB is a cloud software platform enabling service providers and service users to access and organise digital resources and interact in order to get jobs done online. ORB also helps Buyers set up and migrate to ORB: planning, setup and migration, deployment at scale and with pace, training, ongoing support.

Orbis Protect Ltd

Leading supplier of people protection and lone worker services

Orbus Software

Orbus Software is the global, independent software provider of iServer, a fully customisable, Microsoft Visio-based solution that helps orchestrate enterprise transformation. With Orbus, organisations can easily understand how they operate, and successfully plan and execute strategic change. Recipients of the Gartner Peer Insights Customers’ Choice for Enterprise Architecture Tools 2017-2020.

Orchard House Solutions Limited

We work with established businesses to eliminate inefficiency in their systems, processes and operations using S4/HANA (S4), SAP Business ByDesign (BYD), SAP SuccessFactors (SF), and SAP Analytics Cloud (SAC). We can turn our client’s into a highly efficient and fully integrated digital organisations. SAP Gold Partner recommended for expertise.

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.

Ordnance Survey

We are Britain's mapping agency. We make the most up-to-date and accurate maps of the country. But we're also a digital business, and we use our content and cloud solutions to help governments, companies and individuals be more effective both here and around the world


Orlo provides one platform to manage your digital conversations. From Marketing, to Customer Service and Live Chat, hundreds of public sector organisations, including 1/4 of UK constabularies, 30% of local councils and many central government organisations rely on us to manage and measure their digital customer experience.

Orovia Group Ltd

We have specialised in the education sector for over a decade and provide budget planning and payroll and HR software and support to 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 provides highly rated GBEST, CBEST, TBEST Threat Intelligence testing. CREST STAR and GBEST accredited and selected by the Financial Conduct Authority to its Skilled Person Panel and by the Bank of England for the CBEST framework. We also provide threat intelligence , risk management and supplier risk subscriptions.

Ortera Limited

Ortera specialise in turning complex technology projects and programmes from failure to success. Technical and organisational challenges can very quickly derail a technology project, leading to delays and spiralling costs. Twenty years of project implementation experience have given us the ability to quickly identify key failures and deliver immediate improvements.

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.

Otagem Consulting Limited

Otagem helps your organisation get the best out of Microsoft 365, as well as on-prem versions of SharePoint 2013, 2016 and 2019. We provide a wide range of consulting services for Microsoft 365, including system configuration, intranet deployment, branding, training, data migration, workflow, information governance and third-party systems integration.

Our Mobile Health

Our Mobile Health (OMH) specialises in identifying and assessing relevant Health and Medical apps and digital solutions. We enable healthcare organisations and local authorities to easily identify good healthcare apps, providing them with confidence to recommend, deploy and socially prescribe digital solutions to their community of patients, staff or public.

Outsource UK Ltd

Outsource UK supplies a wide range of solutions to the Public Sector, with a dedicated team using their expertise to identify optimum solutions for clients. Building upon an impressive track record of over 25 years, Outsource provides costs effective quality solutions to NHS and Local and Central Government departments.

OutSprint Ltd

We are experts in OutSystems, the leader in low-code technology. OutSprint develops OutSystems mobile apps, web portals, mission-critical systems. We provide the training your organisation needs. We are able to visually develop your entire application, easily integrate with existing systems, and add your own custom code when you need it.

OutSystems Ltd

Based in the UK and headquartered in Lisbon, Portugal, Atlanta and Georgia USA, OutSystems provides the enterprise Low Code, Rapid Application Delivery (RAD) platform that over 1,200 enterprise organizations in 71 countries and 22 industries use to rapidly deliver digital services and effortlessly change their web and mobile application portfolios.

OutThink ltd

OutThink is a human risk management platform (cloud, SaaS) that delivers high quality, GCHQ-certified, targeted security awareness training, unique for each employee. In the process, OutThink measures the human risk in your organisation, including employees’ sentiment towards security, their intention to comply and level of engagement (subjective data).

Oxford Computer Consultants

Oxford Computer Consultants (OCC) is a leading, Oxford-based company with 100+ highly experienced software designers and IT consultants. Founded in 1989, we develop custom software in health, science and engineering, while our products are used to manage the delivery of social care.

Oxford Consultants for Social Inclusion

Oxford Consultants for Social Inclusion (OCSI) is a leading data and research provider, working with several hundred public and community organisations to improve services. We turn complex administrative data into engaging stories, and make data, information and analysis accessible for communities and decision-makers.

Oxinet Ltd

Oxinet is an internet services consultancy which specialises in placement management systems, such as PEMS, that work across complex business environments. We work with public and private sector organisations to support efficiency and communication through the provision of innovative web-based solutions.