Suppliers starting with O


Oaklin is an independent management consultancy. We focus on understanding and solving our clients’ biggest challenges. We specialise in placing small teams of experts who work alongside our clients, bringing the capability or capacity enhancements that are needed. We advise leaders, shape transformation and lead delivery, translating strategy into reality.

Objective Associates Limited

Providers of consultancy services related to 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 are specialists in digital transformation. We deliver enterprise level solutions including application development, application configuration, web, mobile and back office. Innovative technologies including AI / Machine learning / cognitive services, chatbots, IoT, data analytics. With an agile approach, we deliver Microsoft and Java solutions following GDS guidelines.

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

Oceans Blue Limited

Business Intelligence (Using AI and Robotic Process Automation technology) - with a focus on effective workforce planning in the NHS

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 has 17 years of experience in delivering advanced computing systems, data management and data analytics solutions and services. With a strong focus and track record in cloud-based solutions and services, OCF has a broad base of public sector clients as well as many customers in the private sector.


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

OfficeLab’s mission is to consistently manage information, wherever it exists across the enterprise with products and expertise for SharePoint, Office 365, and SAP. We help to maximize productivity and business process efficiency and minimize 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

We provide expert resources to compliment/enhance your teams. We bring in excellent talent that have been fully vetted/tested. We can provide full teams to deliver a complete solution fully managed, by us, from start to finish. We provide UserResearch services/workshops and deliver various training packages.

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 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.

Oneserve Ltd

Oneserve's a fully integrated Field Service Management and Optimised Workforce Scheduling service delivering software to a range of industries/ businesses. You can design the customer experience you want to deliver, turn work into teamwork to get the job done, use analytics to make fact-based decisions on where/how to improve.


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 data and geophysical site information. Technologies include solar, wind, biomass, CHP and 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 Solutions provides Automated Testing and Robotic Process Automation (RPA) via the LEAPWORK product set and platform. As a G-Cloud 10 authorised reseller and Certified Partner of LEAPWORK. Please visit for further information and to discuss our Proof of Concept and LEAPWORK Mini Trial services


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 digital delivery via agile coaching and the use of eXtreme Programming (XP) practices.

OpenCell Limited

In 2018 Opencell merged with Stratto to create the UK’s leading inbuilding mobile service provider. StrattoOpencell uses small cell and DAS solutions to enable true neutral host inbuilding connectivity. We work with all of the UK Mobile Operators and provide carrier-grade indoor mobile coverage as a service to our customers.


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 booking software geared towards sports and community venues and activity providers. It also has an online marketplace which attracts over 90,000 monthly visitors looking to play sport and get 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 specialist Consultancy and Managed IT Service provider that major on data protection, Cyber and information security. We provide a full-service IT offering including; service desk, desktop support, infrastructure monitoring & support, server monitoring, management & maintenance, 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

Opus 2 Magnum, a document management and electronic bundling tool, has made paperless trials a reality and allows lawyers to access, share and manage their documents and transcripts throughout the course of proceedings. It also encompasses our state-of-the-art transcription technology, Magnum Realtime, and integrated electronic presentation and evidence display service.

Opus Telecoms

Opus is an independent privately owned communications company providing Managed Unified Communication solutions, including; Mitel, Gamma and 8x8 Cloud Telephony Services, Unified Communications as a Service (UCaaS), Infrastructure as a Service (IaaS) and support. Founded in 1992 Opus currently supports over 1,500 Public & Private Sector organisations nationwide.

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.

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 develop a range of robust software solutions for Enterprise Architecture, Business Process Analysis, IT Governance, Risk and Compliance, IT Service Management, IT Portfolio Management, and ERP Management. Headquartered in London, and founded in 2004, Orbus Software has customers spanning all verticals sectors; including government and local governments.

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 (formerly SocialSignIn) is a complete social media management platform, with analytics, publishing, engaging and listening. We serve more than 150 local authorities, emergency services and central government agencies. Orlo's ecosystem creates internal efficiency, manages customer engagement and helps deliver compelling comms. Unlimited online training and support included.

Orovia Group Ltd

We have specialised in the education sector for over a decade and provide budget planning and payroll 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.

Otagem Consulting Limited

Otagem helps your organisation get the best out of Office 365, as well as on-prem versions of SharePoint 2013, 2016 and 2019. We provide a wide range of consulting services for Office 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 supply a wide range of solutions to the Public Sector, with a dedicated team using their expertise to identify optimum solutions for our clients. Building upon our impressive track record for over 25 years, Outsource provide costs effective quality solutions to the NHS, 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 and Atlanta, Georgia, OutSystems provides the enterprise Rapid Application Delivery (RAD) platform that over 400 enterprise organizations in 25 countries and 22 industries use to rapidly delivery and effortlessly change their mobile and web application portfolios.

OutThink ltd

Security education and security awareness training evolved. The OutThink human risk protection platform (SaaS) is used to identify, measure human risk and affect behaviour change. It measures human risk at an individual, department and organisational level, by analysing system usage data and understanding that alongside human generated intelligence.

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 placement management systems 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.

Oyster Information Management Solutions Limited

Oyster IMS is an independent information management and information governance company helping organisations to extract value from the growing amounts of information they generate, receive, store and manage. We provide strategic consulting, software, implementation and support services around unstructured information - electronic documents, emails, paper, voice - to global clients.