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Stirling Square backs buyout of the world’s leading manufacturer of security systems for cash protection – 3SI Security Systems

March 2006

London, March 2006, Stirling Square Capital Partners (“Stirling Square”), the pan-European private equity firm announces that it has backed the buyout of 3SI Security Systems (“3SI”) from American Capital Strategies Ltd. (Nasdaq: ACAS).

3SI is the world’s leading manufacturer of electronic security systems for cash protection. The company’s innovative products and solutions offer protection against bank robberies; cash in transit raids and ATM thefts. About 90 of the top 100 banks in the USA and half of the top 50 banks in Europe use 3SI security solutions. The company’s main products incorporate state-of-the-art smoke and ink technology, GPS-based tracking systems and DNA Tagging systems. The company has offices and headquarters in the US and Europe and employs 165 people.

3SI’s management team, headed by CEO Thomas Oxenfeld, plan to grow its customer base in Europe and the US and enter new markets. Stirling Square will support 3SI’s new product innovation programme and international growth though its strategic input, provision of capital and access to its network of contacts.

Bolaji Odunsi , Partner at Stirling Square said, “3SI has an experienced and dynamic management team, strong customer relationships and an extensive line of patented and proprietary products. We see great opportunities for the company in Europe and further afield.”

Martin Calderbank, Partner at Stirling Square commented “We look forward to working with Tom and his team to capitalise on the opportunities ahead, in particular backing new product development and international growth. This deal is a classic example of the investments Stirling Square makes, buying and building proven market leaders”

Thomas Oxenfeld, CEO of 3SI added, “3SI has established an excellent reputation in the security market and is a clear market leader. We have a strong portfolio of products and are continually introducing new and effective solutions to stay ahead of crime. I am excited about working together with Stirling Square in ensuring the next stage in 3SI’s growth”

“American Capital is gratified to have assisted in the growth of 3SI at the board level during our investment,” said American Capital Managing Director Frank Do. “We enjoyed working along side such a high caliber management team and wish them and Stirling Square all the best in the future.”

3SI were advised by James Frommelt of Goldsmith-Agio-Helms.


Bolaji Odunsi
Stirling Square Capital Partners
44 20 7808 4140

Thomas Oxenfeld
3SI Security Systems
1 610 280 2000

Ilias Catsaros
Cubitt Consulting
44 20 7367 5100

About Stirling Square Capital Partners

Stirling Square Capital Partners is a pan-European mid-market private equity firm with $250 million of committed capital from Citigroup. Stirling Square Capital Partners provides private equity investment to European companies with enterprise values in the €50 million - €500 million range, operating across a broad range of sectors and industries. Target companies are sector leaders with international aspirations, defensible competitive advantages, and talented management teams capable of executing a clearly defined value creation strategy

About 3SI Security Systems

3SI Security Systemsis a world leader in protecting cash, using proprietary electronic smoke and ink and GPS-based technologies in banks ATMs, safes and other applications. About 90 of the top 100 banks in the USA and half of the top 50 banks in Europe use 3SI security solutions. Its US headquarters are located in Exton, PA and the European headquarters are located in Zaventem, Belgium. The company has R&D and production facilities in Macon, Georgia, USA and Zaventem, Belgium. Globally, the business employs a team of 165 people providing innovative solutions, professional service and customer satisfaction. For more information, visit the company’s Web site at

About American Capital

American Capital is a publicly traded buyout and mezzanine fund with capital resources of approximately $7 billion. American Capital invests in and sponsors management and employee buyouts, invests in private equity buyouts, provides capital directly to early stage and mature private and small public companies and through its asset management business is a manager of debt and equity investments in private companies and commercial loan obligations. American Capital provides senior debt, mezzanine debt and equity to fund growth, acquisitions, recapitalizations and securitizations. American Capital can invest up to $300 million per transaction.