Industry Veteran Guy Koster joins SIOS as EMEA Sales & Business Development Director

SIOS Bolsters EMEA to Meet Growing Demand for High Availability Clustering Solutions in Cloud and Hybrid Cloud

San Mateo, CA, USA – 29th October 2019SIOS Technology Corp., the industry pioneer in providing IT resilience through intelligent application availability, today announced the appointment of Guy Koster as EMEA Sales & Business Development Director.

“The trend for enterprises to transfer critical applications to the cloud is an ongoing, significant opportunity for SIOS, because doing so requires our deep, expert understanding of the complexities around high-availability (HA) and disaster recovery (DR) in cloud environments. For example, both AWS and Azure have solutions which don’t bridge the hybrid/multi-cloud environment, while our DR and HA solutions provide protection both on-premises and across any Cloud platforms. I’m looking forward to working with the channel to deliver our solutions to enterprises across EMEA,” said Koster.

A strong advocate for indirect sales strategies, Koster’s most recent role was as a senior director Westcon-Comstor, a global channel distributor of Information and Communications Technology (ICT) solutions and services, where he led corporate relationships with Microsoft and Amazon Web Services. Prior to that, he led the Cloud and Unified Communications sales divisions for EMEA. Under his tenure, Westcon-Comstor won over 25 channel and vendor awards.

He has enjoyed more than 30 years of success in building and leading high-performance cross-functional teams in the ICT industry, in both start-up and mature organisations.  He has spent more than 20 years in international roles, including senior sales leadership, strategic alliances, go-to-market and strategy development, channel management, program management and product marketing/management roles.

Guy Koster is the latest industry veteran to join SIOS’s senior management team, following the additions of executives Jim Caro (SVP Sales), Frank Jablonski (VP Marketing), Michael Bilancieri (VP Product), Kevin Williams (SVP Engineering) and Cassius Rhue (VP Customer Experience).

SIOS solutions meet growing demand for high availability clustering software for critical applications like SQL Server, Oracle and SAP, operating in physical, virtual and cloud environments. SIOS’s new customer business for cloud deployments is growing in excess of 100% year-over-year.

Supporting Resources

Tweet this: .@SIOSTech Bolsters #EMEA with #tech #channel industry veteran @guykostersios to meet growing demand for #HighAvailability #Clustering solutions in #Cloud and #HybridCloud #HA #DR

About SIOS Technology Corp.

SIOS Technology Corp. high availability and disaster recovery solutions ensure availability and eliminate data loss for critical Windows and Linux applications operating across physical, virtual, cloud, and hybrid cloud environments. SIOS clustering software is essential for any IT infrastructure with applications requiring a high degree of resiliency, ensuring uptime without sacrificing performance or data – protecting businesses from local failures and regional outages, planned and unplanned.  Founded in 1999, SIOS Technology Corp. ( is headquartered in San Mateo, California, with offices worldwide.

SIOS, SIOS Technology, SIOS DataKeeper, SIOS Protection Suite, Clusters Your Way, and associated logos are registered trademarks or trademarks of SIOS Technology Corp. and/or its affiliates in the United States and/or other countries. All other trademarks are the property of their respective owners.

Media contacts


Rose Ross

Omarketing Ltd. for SIOS

+44 7976 154 597

N. America

Beth Winkowski

Winkowski Public Relations, LLC for SIOS

+1 978-649-7189

Recent News & Press

Big Data Career Notes: February 2024 Edition

In this monthly feature, we’ll keep you up-to-date on the latest career developments for individuals in the big data community. Whether it’s a promotion, new […]

Read More

Skip the ‘I told you so’ and get really good at three things

The phrase, “I told you so” is a timeless retort spoken from the lips of first graders to senior adults. It can be heard after […]

Read More

Beyond Cloud SLAs: How to Navigate the Nuances of Resilience

Here’s how to ensure true application availability and data resilience in the cloud era.

Read More