• Mosaic mobile banner
    Welcome to
    Mosaic Online Systems
    We are the market leading provider of carrier-independent mailing solutions, supporting
    access to Royal Mail and other mail suppliers' delivery networks.
  • IRIS Parcel Dimensioning and Labelling
    Parcel Dimensioning and Labelling
    Automatically detects parcel dimensions
    Automatic pre-advice generation to the carrier
    OCR capture of the destination address
    Preferred routing for the destination address
    Multi-carrier item label generation
    Automatic weight capture
  • Bag scanner app
    DocketHUB dramatically reduces the cost, time and effort
    required by Posters and Carriers to utilise the
    Downstream Access market.
  • Worker at desk
    Friendly, Knowledgeable
    and Happy to Help
    The Mosaic support team are highly experienced, friendly, knowledgable and are
    always happy to assist with any query, from implementation to post-implementation support.
  • Worker at desk
    We are a corporate member
    of the Postal Museum & Mail Rail.
    Opened in 2017, London's first major museum in over a decade. Travel
    under London & ride the hidden postal railway.

Welcome to Mosaic Online Systems

We are the market leading provider of carrier-independent mailing solutions, supporting access to Royal Mail and other mail suppliers’ delivery networks.

We formed in 2004 to address the needs of the newly created Downstream Access Mail arena and to help both Royal Mail and DSA carriers to interact in a cost efficient manner. With a proven track record of systems delivery and specialist knowledge of the mail process, we act as a trusted and independent provider to all parties.

DocketHub interfaces to your systems

DocketHUB is a carrier independent integration platform that facilitates business process automation throughout the mail lifecycle from client, through the posting site, the logistics partner and Royal Mail. DocketHUB uses leading edge technology to seamlessly integrate with all business processes and provides independent accuracy and stability. The system supports the Downstream Access process enabling customers to achieve major cost savings on their contract mail.

About Docket HUB

user holding mobile phone displaying the Dockethub app

+ BN
Mail items in DocketHub
Avg. Mailings created per day
Mailmark items exported from DocketHub
For clients icon
For Clients

Easy to use software and an extensive suite of MI tools to assist clients at every stage of the mailing.

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For mailing houses icon
For Mailing Houses

We provide facilities to help a mailing house manage mailings for multiple clients and multiple DSA carriers.

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For carriers icon
For Carriers

From collection to handover and everything inbetween, we support carriers at every stage.

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Development icon

As one of the key providers of cutting-edge technology within the postal market, we remain the leaders of innovation.

Mosaic’s experienced team of in-house specialists design and develop advanced solutions to exceed the demands of the rapidly evolving market. Our technical knowledge combined with an excellent understanding of the mailing industry allows us to effectively assist you with overcoming complex real-world problems.

Support icon

Mosaic’s dedicated and knowledgeable support team are a single point of contact that provides rapid, efficient, professional problem resolution for all customers.

With a wide range of contact methods and with an excellent understanding of the mailing industry, our professional support team can deal with a wide spectrum of requests that range from problems to questions about the industry.

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Consultancy icon

As an informed supplier to the mailing industry we are well positioned to help leverage real business benefits from your operational processes and technical platforms.

Our close working relationships with posters, mailing houses, carriers and delivery agents give us a unique insight and understanding of the entire end-to-end workflow. Many of our software solutions already underpin the existing network providing the robust data-logistics essential for enabling these partners to work together.



Data and Mailing Management
Data & Mailing Management
Production Control
Production Control
Management Information
Management Information
Unsorted Mailings
Unsorted Mailings

Our Clients

Below are a number of Clients that Mosaic Online Systems have a working relationship with:

Royal Mail
Lockheed Martin
Opus Trust
The Delivery Group


  • Outstanding commercial contribution
    Royal Mail Awards

  • Technology Award
    UK Mail Awards

  • Innovation Award
    UK Mail Awards

  • ISO 27001
    Certificate Number 11168

  • ISO 9001
    Certificate Number 11168

  • ISO – 14001
    Certificate Number 11168

  • Data Seal
    Data IQ

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