- +31 6 3812 7715
- info@reuser.biz
Open Source Intelligence (OSINT) provides expert training, research techniques, and consultancy services focused on improving intelligence analysis. We offer a variety of OSINT training programmes, such as the popular three-day Pathfinder course, aimed at equipping professionals with advanced open source investigation skills. We also produce educational resources, including blogs, videos, and an OSINT bibliography. Reuser’s Information Services, which manages the site, is led by a former OSINT expert from the Dutch Defence Intelligence. The company serves both public and private sectors worldwide.
Reuser’s Information Services consists of Mr Arno Reuser and Ms Marjon van Dijk.
In addition, we have a cluster of subject experts that help us provide in-depth training on specialised OSINT subjects.
They both are the team that provide a wide array of OSINT training programmes, deliver consultancy, workshops, online OSINT sessions, briefings and presentations.
Arno is the founder and manager (ret.) of the Open Source Intelligence branch of the Dutch Defence Intelligence & Security Service. He founded OSINT in 1990 and was its manager until 2013. Since then, Arno devotes all his time to share his passion on OSINT.
Marjon van Dijk has an extensive background in the hospitality business and event management. As a former library assistent, she also has a wealth of knowledge of the world of open source information, and her vast experience makes her the best general programme manager one can have.
The company was founded in January 2008 to meet the ever increasing demand for lectures, presentations, briefings, workshops and complete OSINT training programmes worldwide.
Until 2013, work for the company was done in conjunction with work for the Service, with full approval of the minister of Defence. However, the requirement and demand for our services became such that we decided to go full time for the company and end our relationship with the Service in 2013.
Reuser’s Information Services is a one-man company, fully owned by Arno Reuser without any dependency on third parties.
VAT number: NL001126622B79
Chamber of Commerce registration: 273 123 25
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In 1990 Arno was invited by the (back then) Defence Intelligence Services to establish a brand new Open Source Intelligence production capability.
Having access to the world’s leading open source information providers such as Factiva, Dialog and Lexis-Nexis, and mastering the complex retrieval languages of those systems, Arno managed to provide accurate and exact answers to questions instead of producing large amount of paper output.
Arno was also investigating the brand new public online world. Starting with a 1200 BAUD modem and discovering bulletin board systems then quickly changing to the brand new Internet using the only provider available: Hack-Tic. The world wide web did not exist yet. Gopher, Archie, WAIS, Veronica and many more, where the tools to browse the Internet and visit service providers. And being stunned to download full text copies of security council resolutions. For free.
Then to continue to investigate how sources on the Internet, and later on the world wide web as well, could be integrated with the already existing commercial online information providers on the one side and with academic and specialised libraries on the other. It proved to be a golden choice.
Especially because the art of programming turned out to be invaluable. Arno continued to create a reliable, fast, durable OSINT production system that could provide timely answers to research questions. Basically by automatic downloading relevant public information, processing that information and via an air-gap, uploading the information daily to the in-house OSINT website. Every analysis team had their own part on the OSINT website.
Arno is the founder and owner of Reuser’s Information Services and the primary teacher/speaker/consultant.
Arno founded and managed the Open Source Intelligence branch of the Dutch Defense Intelligence and Security Service from 1990-2013 during which he developed an innovative system to translate complex information requirements in actionable answers using open source information. Since 2013 working full time for his own company he travels the world to share his passion, tools and techniques for OSINT.
Marjon is the general manager and organiser of Reuser’s Information Services.
Marjon has an extensive background in the hospitality business and event management. As a former library assistent, she also has a wealth of knowledge of the world of open source information, and her vast experience makes her the best general programme manager one can have. Marjon’s prime responsibility is customer relations, general management, organisation and communications.
Marc is the trainer for intelligence analysis techniques.
Marc is a Ph.D. candidate at Leiden university, graduated in Arabic Language and Studies of Islam, and served a long government career in security and crisis management. With extensive education and experience in diplomacy, strategy and intelligence studies at a variety of universities world-wide (Australia, Israel, Scotland) Marc specialises in providing training in on critical and creative thinking, and intelligence analysis techniques.
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Open Source Intelligence (OSINT) offers specialized training and consulting services focused on improving intelligence analysis through open-source data collection.
A copy of your registration form plus further information will be send to your address in a few minutes.
We shall also issue an invoice in the coming days.
Please do not hesitate to contact us if you have any questions!
Marjon van Dijk,
Manager & Hostess
Reuser’s Information Services