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Copenhagen, March 5th, 2020


Heimdal is a high growth company in the cybersecurity industry, focused on protecting customers from attacks and breaches at an endpoint-level. With its ‘Thor’ range of solutions, the company has been the winner of various industry accolades over the years. To-date, Heimdal’s solutions are deployed in thousands of companies, providing essential protection for close to a million users.


The sale of Heimdal opens a new chapter in the company’s journey, as it will be able to leverage its leadership at a technological level, as well as its sales and marketing dynamism, coupled with Marlin’s proven track-record in strategy and operational excellence, to scale globally and continue to deliver against highly ambitious growth targets.


Speaking of the transaction, Allan Mortensen, CEO of CSIS, said, “Six years ago, we took the strategic decision to establish Heimdal. Since then, through consistent product innovation and customer success, the company has grown tremendously and become a force to be reckoned with. As we continue to focus on the execution of our cyber services strategy, we are delighted to remain a core partner of Heimdal’s and are convinced that this move will bring both companies much success.”


Reflecting on what this means for the company, Morten Kjærsgaard, CEO of Heimdal, said, “Heimdal has been a pioneer in endpoint technology over the last 6 years and has grown into a position where competitors now look to us for good ideas. The team used the foundation laid out by CSIS to show what can be done with constant development and our unified product is today one of a kind in the market. Heimdal has established strong traction and achieved rapid growth since we started and with the support of Marlin, a leading global software investor, we envision growing from a strong European security vendor into a global market leader.”


“In the face of modern threats, Heimdal is uniquely positioned to address the rapidly evolving cybersecurity needs of small and medium-sized enterprises, for whom traditional solutions such as antivirus and firewalls are proving increasingly insufficient,” said Florian Hofmann, a Principal at Marlin.


“Heimdal’s rapid growth and outstanding reputation in the market are a testament to its ability to address critical security shortcomings and deliver tangible business value to customers. We are excited to partner with an exceptional management team and support them in accelerating growth, enhancing the product offering and expanding international operations.”


Amongst the company’s first priorities under its new ownership, Heimdal will further accelerate its product development plans and invest into geographical expansion.


About CSIS Security Group A/S

Founded in Copenhagen in 2003, CSIS Security Group is a leading independent provider of cyber security services in Europe. Credited by Gartner Group for its threat intelligence and MDR capabilities, the company mitigates customers’ security risk with a range of preventive security products and services, as well as incident response and managed security services. CSIS is the preferred cyber security provider to some of the world’s largest enterprises, and is a trusted advisor to law enforcement agencies, government and news media.

For more information, please visit


About Marlin Equity Partners LLC

Marlin Equity Partners is a global investment firm with over $6.7 billion of capital under management. The firm is focused on providing corporate parents, shareholders and other stakeholders with tailored solutions that meet their business and liquidity needs. Marlin invests in businesses across multiple industries where its capital base, industry relationships and extensive network of operational resources significantly strengthen a company’s outlook and enhance value. Since its inception, Marlin, through its group of funds and related companies, has successfully completed over 160 acquisitions. The firm is headquartered in Los Angeles, California with an additional office in London.

For more information, please visit


About Heimdal Security A/S

At Heimdal Security we protect users and companies from cyber-criminal actions, by keeping critical information and intellectual property safe. We are the winners of the "Most Educational Security Blog" award in 2016, nominated for Anti-Ransomware Solution of the Year at the 2017 Computing Security Awards and Winners of the “Anti Malware Solution of the Year” at the 2018 Computing Security Awards.

Since 2011, we have been leading the fight against cybercrime, developing new technologies and providing intelligence to protect thousands of companies and close to a million users against cybercriminal attacks and data security breaches.

For more information, please visit