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.

Our Clients

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

Secured Mail
Royal Mail
Royal Bank of Scotland
Opus Trust Marketing
DX Group
CFH Docmail
Birmingham City Council
Lockheed Martin

Mailmark mailings made easy with DocketHUB

About Mailmark

For Clients

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

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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

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

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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 DocketHUB

Our Services


Our dedicated management team work directly with customer’s delivery and operations teams to provide full planning of projects and assistance with the day-to-day mail processes. We foster close working relationships with all customers, making us the first port of call when support for new products is required and you can be sure our planning will enable you to hit your targets.


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.


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.


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.

We know mail

Our team of skilled analysts, developers and testers are the key to how Mosaic produces great work. We pride ourselves on delivering incredible service and adding value to our products with our in-depth knowledge of the mailing industry.

Meet the Team