PA Consulting Services Limited (UK)

Sourcing Service Integration (SIAM) Services

Sourcing the Service Integration (SIAM) services help clients shape and deliver capabilities that meet the cloud service integration challenge. Our service will help you define the operating model, sourcing strategy, and commercial principles; capture business requirements; support drafting of contracts; and draw a detailed procurement and transition roadmap.


  • Embrace the benefits of multi-sourcing, tower model and SIAM
  • Capture the business requirements and translate them to technical documents
  • Support the legal team to draft the schedules and clauses
  • Develop the cost model, business case, sourcing and commercial principles
  • Deliver multi-supplier SIAM capabilities that meet service integration challenge
  • Tailored SIAM sourcing approach for specific client needs
  • Bringing market knowledge of suppliers’ SIAM capabilities
  • Developing independent and non-biased SIAM sourcing strategy
  • Better service quality, best-of-breed approach and greater flexibility
  • Define the operating model and identify gaps


  • Establish clear and consistent sourcing strategy for SIAM
  • Independent and not biased towards any pre-defined solution
  • Provide expertise on SIAM market offerings
  • Provide expertise on how to build SIAM capabilities
  • Develop a concrete vision for the SIAM function
  • Assist in go-to-market strategy for outsourced SIAM components
  • Assist in SIAM partners selection and contracting
  • Assist in transition planning towards the new SIAM model
  • Tailored approach based on best practice methodology


£680 per person per day

Service documents

G-Cloud 11


PA Consulting Services Limited (UK)

Lia Shaw

0207 730 9000



Planning service Yes
How the planning service works We typically support buyers across a range of activities including: - Confirming the types of cloud services that are most appropriate, across Infrastructure, Platform and Software as a Service. - Estimating the likely use patterns to inform the design of cloud services - Assessing the suitability of existing products to migrate to the cloud and whether alternatives exist in the cloud environment
Planning service works with specific services No


Training service provided Yes
How the training service works PA is independent from all vendors and provides impartial advice and training. We can provide training services for any cloud software service and any hosting service. We have strong partnerships with a number of vendors inc: Microsoft, AWS, Google, UK Cloud, Crown Hosting and others, which allows us to do this. We also provide certified courses in Scales Agile (SAFe) and cyber security areas tailored specifically for cloud software and hosting capabilities.
Training is tied to specific services No

Setup and migration

Setup and migration
Setup or migration service available Yes
How the setup or migration service works Our pioneering, and award winning, work in cloud adoption has enabled a range of clients, including those with sensitive data and business processes to protect, to successfully exploit public cloud services from the major providers including AWS, Google and Microsoft. PA offers a full lifecycle of services to support your cloud adoption journey which are tailored to your situation and focused on achieving your outcomes.

We work closely with you to develop your overall cloud and hosting strategy through to defining and implementing the required target operating model to successfully exploit cloud including establishing new capabilities and ways of working (e.g. DevOps and Agile). PA recognises the importance of resilience and cyber security across cloud architectures and our Digital Trust team, who have worked with the most sensitive areas of UK government, bring a range of security testing and assurance capabilities that cover every aspect of enterprise cloud security. Our Migration and Transformation capabilities assess existing applications to identify and execute the preferred cloud migration approach (“lift and shift” or re-architect) supported by a strong business case.

Our Digital Operations team brings the new blend of capabilities (people, processes and tools) required to successfully manage and optimise your cloud solutions.
Setup or migration service is for specific cloud services No

Quality assurance and performance testing

Quality assurance and performance testing
Quality assurance and performance testing service Yes
How the quality assurance and performance testing works PA is committed to ensuring that it always delivers the highest levels of quality to its clients. PA’s remuneration policy is based heavily on performance for clients, and is validated by specific feedback channels from clients to PA. The primary mechanism for capturing our clients’ views is through our Client Satisfaction Survey process, in which we seek feedback on PA’s performance on specific assignments. PA takes this process seriously and thus the review is normally carried out by an independent member of PA’s senior management group in a face-to-face meeting with the client. The Partner in Charge of the assignment will hold an active leadership role with ultimate responsibility for the delivery of all our work to meet client’s needs and in a manner that meets the client's culture and values. PA holds an IS09000 certification.

Security testing

Security testing
Security services Yes
Security services type
  • Security strategy
  • Security risk management
  • Security design
  • Cyber security consultancy
  • Security testing
  • Security incident management
  • Security audit services
Certified security testers Yes
Security testing certifications
  • Tigerscheme

Ongoing support

Ongoing support
Ongoing support service Yes
Types of service supported
  • Buyer hosting or software
  • Hosting or software provided by your organisation
  • Hosting or software provided by a third-party organisation
How the support service works We provide a range of managed service support capabilities for our clients. This includes first line user support through to third line technical software support. We make use of an existing service desk that already provides extended UK business hours support for over 35,000 users. We also offer offshore support capabilities to provide lower cost application support services and software development.

Service scope

Service scope
Service constraints There are no significant limitations in our service offering.

User support

User support
Email or online ticketing support Yes, at extra cost
Support response times Response times will be agreed as part of a service level agreement with the client.
User can manage status and priority of support tickets Yes
Online ticketing support accessibility WCAG 2.1 A
Phone support Yes
Phone support availability 9 to 5 (UK time), Monday to Friday
Web chat support Yes, at an extra cost
Web chat support availability 24 hours, 7 days a week
Web chat support accessibility standard WCAG 2.1 A
Web chat accessibility testing Web chat testing protocol will be agreed with the client as part of our service design process.
Support levels We adapt our support to the needs of the users and can offer most support levels requested by clients. We have provided all combinations of first, second, and third line support to our clients; we have provided all combinations of UK business hours, UK extended business hours, US business hours and 24/7 support facilities to our clients. We have provided both real-time telephone support, email support, and on-call support. The costs of each of these models is tailored to the specific needs of our clients to ensure the right level of support is provided to the service in question. In all of our client engagements there will be a dedicated account manager – and typically a cloud support engineer or technical account manager depending on the needs of the client.


Supplier type Reseller providing extra features and support
Organisation whose services are being resold Microsoft, AWS, Google, Azure, UK Cloud and others.

Staff security

Staff security
Staff security clearance Other security clearance
Government security clearance Up to Developed Vetting (DV)


Price £680 per person per day
Discount for educational organisations No

Service documents

pdf document: Pricing document pdf document: Skills Framework for the Information Age rate card pdf document: Service definition document pdf document: Terms and conditions pdf document: Modern Slavery statement
Service documents
Return to top ↑