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  1. Digital Marketplace
  2. Lot 1: Cloud hosting
  3. Multi Cloud Hosting Services (IaaS, PaaS, SaaS)

Multi Cloud Hosting Services (IaaS, PaaS, SaaS)

Simplex provides a multi cloud IaaS, PaaS and SaaS capability using the public cloud offering of your choice from Amazon Web Services (AWS) or Microsoft Azure Cloud.

We map your business requirements to find the right cloud provider and right service model (IaaS, PaaS, SaaS).


  • IaaS and PaaS (AWS, Azure)
  • Scope and Specification
  • Strategy and Consulting
  • Implementation and Migration
  • Enterprise and Solution Architecture
  • Compliance and Assurance
  • Packaged Services including software licenses for as-a-service requirements
  • Outcome based model covering cloud , software, subscriptions and services
  • SaaS (Office 365, Microsoft 365, Citrix and others)
  • Containers, Dockers and other DevOps capabilities


  • Help chose right public cloud (AWS, Azure)
  • Vendor agnostic
  • Enhanced credibility for existing strategy
  • Address business needs, maintain quality of outputs and control
  • Tangible outputs conforming to technology framework
  • Diverse skillsets and scalable (up and down) model
  • Outcome based model
  • End-to-end ownership of the service provider
  • Cost effective
  • Value based services


£1 an instance a day

Service documents

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G-Cloud 13

Service ID

9 7 8 8 6 8 1 0 8 6 1 8 0 6 4


Telephone: +447946789222

Service scope

Service constraints
We have no specific constraints apart from standard ones imposed by public cloud providers. They vary from customer to customer and cloud providers and can be complex to understand. We provide services to our clients to help them make the right choices and highlight any of the providers constraints.
System requirements
  • Bring your own License, where allowed by Public Cloud Provider
  • Support Enterprise License Agreement, where allowed by Public Cloud Provider
  • License Mobility, where allowed by Public Cloud Provider

User support

Email or online ticketing support
Yes, at extra cost
Support response times
The response times are agreed as per customer's requirements and budgets. We broadly classify our support into three categories: Standard, Important and Critical.

General guidance cases < 24 business hours; system impaired cases < 12 business hours.

General guidance cases < 24 hours; system impaired cases < 12 hours; production system impaired cases < 4 hours; production system down cases
< 1 hour.

General guidance cases < 24 hours; system impaired cases < 12 hours; production system impaired cases < 4 hours; production system down cases < 1 hour; business-critical system down cases < 15 minutes
User can manage status and priority of support tickets
Online ticketing support accessibility
WCAG 2.1 AA or EN 301 549
Phone support
Phone support availability
24 hours, 7 days a week
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 AA or EN 301 549
Web chat accessibility testing
We have not directly done web interface testing for assistive technology users but can work and channelise with partners to bring those testing experience for our clients.
Onsite support
Yes, at extra cost
Support levels
We provide support for various cloud services and are agnostic of cloud providers ( AWS, Azure Cloud). We offer 9am to 5pm or 24/7 support dependent on client needs and can be a combination of on-site and remote support. We have a team of consultants and specialists who are certified in the specific technology and cloud services area. We provide the 1st line and 2nd line support using our in house resources and we leverage on our relationship with the cloud service providers for any 3rd line support.

We support three levels titled: Standard, Important and Critical. We work with clients to understand their business requirements and cost implications and then align workloads to support levels. We have Technical Account Manager and Cloud Specialist to help our clients define these support levels and ensure right fit throughout the contract. This activity is carried during the initial setup and can be altered if our client's requirement changes to provide flexibility.
Support available to third parties

Onboarding and offboarding

Getting started
We provide a comprehensive package which is customised to meet client’s requirements for onboarding the cloud services. Since every client is at a different level of cloud adoption maturity level, our approach is modularised and includes comprehensive documentation (in multiple formats), introductory videos, combination of onsite and remote training covering how-to’s, hands-on labs, online and in-person training, right-first-time modules and access to a large ecosystem of partners.
Service documentation
Documentation formats
  • HTML
  • PDF
End-of-contract data extraction
Data may be copied out using OS-level tools (such as xopy or rsync) and is available on request and per contractual agreement. Also, in most cases there is support for third party tools and we work with customers to understand their data type, timelines and cost to support such tools.
End-of-contract process
The exit clause varies for every individual contract and so are the associated costs. We will jointly agree to explicitly call out all inclusions and exclusions possible in the remit of services contracted.

"Buyer may terminate the relationship with Supplier for any reason by (i) providing Supplier with notice and (ii) closing Buyers account for all services for which Supplier provide an account closing mechanism.

Buyers pay for the services they use to the point of account termination.

Supplier customers retain control and ownership of their data. Supplier will not erase customer data for 30 days following an account termination. This allows customers to retrieve content from Supplier services so long as the customer has paid any charges for any post-termination use of the service offerings and all other amounts due.

Using the service

Web browser interface
Using the web interface
Almost all functionality for each of our services is exposed through the web console.

The web console facilitates management for all aspects of the Azure and AWS account (or other providers) in a consolidated view whilst providing access to all services and their respective functionalities.

In some cases, specific configuration parameters of a service are dedicated to, and only available from, the CLI, SDK, or API interface.
Web interface accessibility standard
WCAG 2.1 AA or EN 301 549
Web interface accessibility testing
We have not directly done web interface testing for assistive technology users but can work and channelise with partners to bring those testing experience for our clients.
What users can and can't do using the API
All our public cloud solution offerings support publishing API for internal and external customers, which can be extended to our clients so that the overall stack integrates with their IT ecosystem. The API supports open system as well and users can develop, integrate, automate and maintain API gateways in a secured manner for their applications to access data, business logic, or functionality from your back-end IaaS services.

We provide real life examples and expertise to our clients to use Azure API Management and Amazon API Gateway so that they can deploy and scale their workload in a consistent manner.

There are no restrictions per se apart from technology limitations between client and public cloud setup, but since most platforms support open system and support REST API, PowerShell and Git we are fairly confident of overcoming any limitations using our combined knowledge and expertise.
API automation tools
  • Ansible
  • Chef
  • OpenStack
  • SaltStack
  • Terraform
  • Puppet
API documentation
API documentation formats
  • HTML
  • PDF
  • Other
Command line interface
Command line interface compatibility
  • Linux or Unix
  • Windows
  • MacOS
Using the command line interface
The users can manage and administer public cloud resources from the command line. They can further automate their tasks using scripts, shell programmes and commands across multiple services.


Scaling available
Scaling type
  • Automatic
  • Manual
Independence of resources
Customer environments are logically segregated to prevent users and customers from accessing resources not assigned to them.

Services which provide virtualised operational environments to customers ensure that customers are segregated via security management processes/controls at the network and hypervisor level.

We continuously monitor service usage to project infrastructure needs to support availability commitments/requirements. We maintain a capacity planning model to assess infrastructure usage and demands at least monthly, and usually more frequently. In addition, our capacity planning model supports the planning of future demands to acquire and implement additional resources based upon current resources and forecasted requirements.
Usage notifications
Usage reporting
  • API
  • Email
  • SMS
  • Other


Infrastructure or application metrics
Metrics types
  • CPU
  • Disk
  • HTTP request and response status
  • Memory
  • Network
  • Number of active instances
Reporting types
  • API access
  • Real-time dashboards
  • Regular reports
  • Reports on request


Supplier type
Reseller providing extra support
Organisation whose services are being resold
Microsoft Azure, AWS, Citrix, IBM/RedHat

Staff security

Staff security clearance
Other security clearance
Government security clearance
Up to Security Clearance (SC)

Asset protection

Knowledge of data storage and processing locations
Data storage and processing locations
  • United Kingdom
  • European Economic Area (EEA)
User control over data storage and processing locations
Datacentre security standards
Supplier-defined controls
Penetration testing frequency
At least once a year
Penetration testing approach
Another external penetration testing organisation
Protecting data at rest
  • Physical access control, complying with CSA CCM v3.0
  • Physical access control, complying with SSAE-16 / ISAE 3402
  • Physical access control, complying with another standard
  • Other
Other data at rest protection approach
AWS and Azure adheres to independently validated privacy, data protection, security protections and control processes.

AWS and Azure are responsible for the security of the cloud; customers are responsible for security in the cloud. They enable customers to control their content (where it will be stored, how it will be secured in transit or at rest, how access to their environment will be managed).

Wherever appropriate, AWS and Azure offers customers options to add additional security layers to data at rest, via scalable and efficient encryption features. It offers flexible key management options and dedicated hardware-based cryptographic key storage.
Data sanitisation process
Data sanitisation type
  • Explicit overwriting of storage before reallocation
  • Deleted data can’t be directly accessed
  • Hardware containing data is completely destroyed
Equipment disposal approach
A third-party destruction service

Backup and recovery

Backup and recovery
What’s backed up
  • Files
  • Virtual Machines
  • Database
  • Machine Image
  • Operating System
Backup controls
User can control the backup target and environment either manually or scheduled via API call and/or script, depending upon their application and service requirements. This is also linked to their cost, criticality and backup policy.
Datacentre setup
  • Multiple datacentres with disaster recovery
  • Multiple datacentres
  • Single datacentre with multiple copies
  • Single datacentre
Scheduling backups
Users schedule backups through a web interface
Backup recovery
  • Users can recover backups themselves, for example through a web interface
  • Users contact the support team

Data-in-transit protection

Data protection between buyer and supplier networks
  • Private network or public sector network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Bonded fibre optic connections
  • Legacy SSL and TLS (under version 1.2)
Data protection within supplier network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Legacy SSL and TLS (under version 1.2)
  • Other
Other protection within supplier network
Customer environments are logically segregated to prevent users and customers from accessing resources not assigned to them. AWS and Azure gives customers ownership and control over their content by design through simple, but powerful tools that allow customers to determine how their content will be secured in transit.

AWS and Azure enables customers to open a secure, encrypted channel to their services using TLS/SSL, and/or IPsec or TLS VPN (if applicable), or other means of protection the customer wish to use.
API calls can be encrypted with TLS/SSL to maintain confidentiality; the Console connection is encrypted with TLS.

Availability and resilience

Guaranteed availability
AWS and Azure currently provides SLAs for several services. Due to the rapidly evolving nature of their product offerings, SLAs are best reviewed directly on our website via the link below: and
Approach to resilience
The AWS and Azure Business Continuity plan details the process that they follow in the case of an outage, from detection to deactivation. For e.g. AWS has developed a three-phased approach: Activation and Notification Phase, Recovery Phase, and Reconstitution Phase. This approach ensures that AWS performs system recovery and reconstitution efforts in a methodical sequence, maximising the effectiveness of the recovery and reconstitution efforts and minimising system outage time due to errors and omissions.

Both maintain a ubiquitous security control environment across all regions. Each data centre is built to physical, environmental, and security standards in an active-active configuration, employing an n+1 redundancy model, ensuring system availability in the event of component failure. Components (N) have at least one independent backup component. All data centres are online and serving traffic. In case of failure, there is sufficient capacity to enable traffic to be load-balanced to the remaining sites.

Customers are responsible for implementing contingency planning, training and testing for their systems hosted. AWS and Azure provides customers with the capability to implement a robust continuity plan, including the utilisation of frequent server instance back-ups, data redundancy replication, and the flexibility to place instances and store data within multiple geographic regions.
Outage reporting
A combination of Public dashboard; personalised dashboard with API and events; configurable alerting (email / SMS / messaging), email alerts.

Identity and authentication

User authentication
  • 2-factor authentication
  • Public key authentication (including by TLS client certificate)
  • Identity federation with existing provider (for example Google apps)
  • Limited access network (for example PSN)
  • Dedicated link (for example VPN)
  • Username or password
  • Other
Other user authentication
AWS’s Identity and Access Management (IAM) system controls access to AWS services/resources. No actions are permissible without authentication. IAM facilitates the issuance of access permissions per user/group. MFA is available at no extra cost.

AWS CoudTrail allows you to log, continuously monitor and retain events related to API calls across your AWS infrastructure.

We also have provision to use Azure Identity and Access Management.
Access restrictions in management interfaces and support channels
IAM provides user access control to services, APIs and specific resources. Other controls include time, originating IP address, SSL use, and whether users authenticated via MFA devices.

API calls to launch/terminate instances, change firewalls, and perform other functions are signed by customers’ Secret Access Key (either the root AWS/Azure Account’s Secret Access Key or the Secret Access key of a user created with AWS/Azure IAM). The API calls cannot be made on customers’ behalf without access to customers’ Secret Access Key.

API calls can be encrypted with TLS/SSL for confidentiality and customers can use TLS/SSL-protected API endpoints.
Access restriction testing frequency
At least once a year
Management access authentication
  • 2-factor authentication
  • Public key authentication (including by TLS client certificate)
  • Identity federation with existing provider (for example Google Apps)
  • Dedicated link (for example VPN)
  • Username or password
Devices users manage the service through
  • Dedicated device on a segregated network (providers own provision)
  • Dedicated device over multiple services or networks
  • Directly from any device which may also be used for normal business (for example web browsing or viewing external email)

Audit information for users

Access to user activity audit information
Users have access to real-time audit information
How long user audit data is stored for
Access to supplier activity audit information
You control when users can access audit information
How long supplier audit data is stored for
At least 12 months
How long system logs are stored for
At least 12 months

Standards and certifications

ISO/IEC 27001 certification
ISO 28000:2007 certification
CSA STAR certification
PCI certification
Cyber essentials
Cyber essentials plus
Other security certifications

Security governance

Named board-level person responsible for service security
Security governance certified
Security governance standards
Other security governance standards
As a company we are Cyber Essentials.

Azure and AWS have Cyber Essentials Plus; ISO 27017; ISO 27018; SOC 1/2/3. Microsoft is ISO 27001 certified.
Information security policies and processes
We implement formal, documented policies and procedures that provide guidance for operations and information security within the organisation. Policies address purpose, scope, roles, responsibilities and management commitment.

Employees maintain policies in a centralised and accessible location. The management is responsible for familiarising employees with our security policies.

We have established information security functions that are aligned with defined structure, reporting lines, and responsibilities. Leadership involvement provides clear direction and visible support for security initiatives.

The output of the Leadership reviews include any decisions or actions related to:

• Improvement of the effectiveness of the ISMS.
• Update of the risk assessment and treatment plan.
• Modification of procedures and controls that affect information security to respond to internal or external events that may impact the ISMS.
• Resource needs.
• Improvement in how the effectiveness of controls is measured.

Policies are approved by the leadership at least annually or following a significant change to the environment.

Operational security

Configuration and change management standard
Supplier-defined controls
Configuration and change management approach
Changes to customer services and features follow secure software development practices, including security risk reviews prior to launch. Developer access to production environments is via explicit access system requests, subject to owner review and authorisation.

Teams set bespoke change management standards per service, underpinned by standard guidelines.

All production environment changes are reviewed, tested and approved. Stages include design, documentation, implementation (including rollback procedures), testing (non-production environment), peer to peer review (business impact/technical rigour/code), final approval by authorised party.

Emergency changes follow incident response procedures. Exceptions to change management processes are documented and escalated to the management.
Vulnerability management type
Supplier-defined controls
Vulnerability management approach
AWS and Azure Security performs vulnerability scans on the host operating system, web applications, and databases. Approved 3rd party vendors conduct external assessments (minimum frequency: quarterly). Identified vulnerabilities are monitored and evaluated. Countermeasures are designed and implemented to neutralise known/newly identified vulnerabilities.

We monitor newsfeeds/vendor sites for patches and receive customer intelligence.

We support our customers for all scanning, penetration testing, file integrity monitoring and intrusion detection for their instances/ applications. Scans should include customer IP addresses excluding AWS and Azure endpoints, as that is part of AWSAzure and compliance vulnerability scans.
Protective monitoring type
Supplier-defined controls
Protective monitoring approach
We use AWS and Azure deploy (pan-environmental) monitoring devices to collect information on unauthorised intrusion attempts, usage abuse, and network/application bandwidth usage. Devices monitor:

• Port scanning attacks
• Usage (CPU, processes, disk utilization, swap rates, software-error generated losses)
• Application metrics
• Unauthorised connection attempts

Near real-time alerts flag incidents, based on Service/Security Team- set thresholds.

Requests to the log events is through the portal. We can also integrate with other third party software applications for additional/enhanced functionalities.
Incident management type
Supplier-defined controls
Incident management approach
We closely follow ITIL processes and incident management process is clearly defined to ensure the service is restored to a predefined standard of service to our customers. This is achieved with the monitoring tools deployed as part of the service and is configured based on the inputs from both users as well as technology to maintain the standard of the services. Based on the severity of the incident, incident reports are followed by Root Cause Analysis to the identified stakeholders and knowledge base is update for continuous improvement and incident avoidance

Secure development

Approach to secure software development best practice
Conforms to a recognised standard, but self-assessed

Separation between users

Virtualisation technology used to keep applications and users sharing the same infrastructure apart
Who implements virtualisation
Virtualisation technologies used
Other virtualisation technology used
VMware, Hyper-V, KVM hypervisor, Xen hypervisor, AWS proprietary and others
How shared infrastructure is kept separate
Customer environments are logically segregated, preventing users and customers from accessing unassigned resources. Customers maintain full control over their data access. Services which provide virtualised operational environments to customers, ensure that customers are segregated and prevent cross-tenant privilege escalation and information disclosure via hypervisors and instance isolation.

Different instances running on the same physical machine are isolated from each other via the Xen hypervisor. The Amazon/Azure firewall resides within the hypervisor layer, between the physical network interface and the instance's virtual interface. All packets pass through this layer. The physical random-access memory (RAM) is separated using similar mechanisms.

Energy efficiency

Energy-efficient datacentres
Description of energy efficient datacentres
AWS and Azure are committed to running their business in the most environmentally friendly way possible. In addition to the environmental benefits inherently associated with running applications in the cloud, They have a long-term commitment to achieve 100% renewable energy usage for our global infrastructure footprint and have made a lot of progress on this commitment.

Given the nature of changes being made, the latest information can be found at and

Social Value

Fighting climate change

Fighting climate change

"Simplex are a responsible supplier who works ethically and professionally. As a G-Cloud member we follow a strict code of conduct and how we provide services to our customer. Simplex is Brighton-based company, supporting and promoting employment and economic sustainability and we have demonstrated this by basing our office in University of Sussex campus (Sussex Innovation Centre). We actively work with interns and graduates needing work experience during their industry sandwich course placement as part of their Catalyst Programme. We do not discriminate on Race, Religion, Age or Gender. Simplex actively supports environmental awareness on how our business operates, and we have several key policies in place: 1. Use conference calls or Microsoft Teams and only travel where necessary 2. Think before you print 3. In 2018, we added our first zero emissions vehicle to our company car fleet Where possible, we normally place consultants or support staff who work in the local region. This supports employment growth in the local community and promotes environmental sustainability too. We employ staff or contractors above minimum wage and all exceed market rates." We have published our Environment Policy on our website and can be accessed at -
Covid-19 recovery

Covid-19 recovery

We supported our staff during the Covid and provide them necessary support during the lockdown.
Tackling economic inequality

Tackling economic inequality

We are fair in our employment and reward our associates as per their skills. Also if any associate needs financial assistance, we provide them the necessary assistance.
Equal opportunity

Equal opportunity

We are an equal opportunity employer and have a defined policy. All our opportunities are outlines their commitment to fair treatment of all employees, regardless of: Age Sex Race Gender Reassignment Disability Pregnancy Marital Status Religion or Beliefs


We support our associates for mental and physical well being.


£1 an instance a day
Discount for educational organisations
Free trial available
Description of free trial
The free trial version for cloud as per AWS and Azure terms and conditions. The key components include virtual machines, storage, backup and database. The link for latest set of free products has been provided below for reference.
Link to free trial and

Service documents

Request an accessible format
If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at Tell them what format you need. It will help if you say what assistive technology you use.