Erkki Tuulo Kalevi Puonti

Helmet Capital Oy Ab (Helmet Capital) is a private equity firm founded in 1994 by Seppo Ahonen, Reijo Kaukonen, Heikki Koivisto and Kalevi Puonti. The firm is headquartered in Helsinki, Finland.

Hewlett-Packard Oy provides sales and marketing services for the HP products. Its activities include the design, development, marketing, sales, delivery services and support of various IT products and solutions. The company offers products such as personal computers, servers, data storage devices, printing and imaging equipment and enterprise software. It has operations in the Baltic States like Estonia, Latvia and Lithuania. Hewlett-Packard Finland was established in 1967 and is headquartered in Espoo, Finland.

Silicon Graphics, Inc., is a leader in high-performance computing, visualization and storage. SGI's vision is to provide technology that enables the most significant scientific and creative breakthroughs of the 21st century. Whether it's sharing images to aid in brain surgery, finding oil more efficiently, studying global climate, providing technologies for homeland security and defense or enabling the transition from analog to digital broadcasting, SGI is dedicated to addressing the next class of challenges for scientific, engineering and creative users

Halikko Group Oy is a holding company that operates through its subsidiaries, which manufactures welded, cold worked, and heat treated steel products. Its core products are the cistern gables, half-spherical tanks, and side plate to spherical tanks. It designs and manufactures steel products for steel and construction, pulp and paper, offshore and marine, energy, and mechanical industries. The firm provides dished and flanged ends, cones, hemispherical ends, segmental plates for spherical tanks, standard forms, dished discs, industrial piping components and prefabrications, lime sludge reburning kilns, and debarking drums. The company was founded on May 30, 2008 and is headquartered in Halikko, Finland.

Finlux Oy manufactures & markets digital television receivers and DVD players. The company has offices in Finland, Sweden, Norway, and Denmark. The company was founded in 1975 and is headquartered in Turku, Finland.

Cymbet Corp. designs and manufactures solid-state energy storage solutions for microelectronic systems. It offers solutions in area of industries, telecom and networking, medical, consumer electronics, aero and transportation, wireless handheld, embedded systems and computing and renewable energy. The company was founded by Mark Lynn Jenson and Jacob Harlen in 2000 and is headquartered in Elk River, MN.

Sisu Axles Oy manufactures and distributes axles to the automotive industry. It serves the global heavy-duty transportation industry, with a broad range of components and assemblies. The company was founded in 1998 and is headquartered in Hameenlinna, Finland.