Blumberg will succeed Acting CEO Timo Huttunen, who will lead the company until Blumberg assumes the role. Afterward, Huttunen will return to his position as CEO of Aquamec Oy. The appointment follows a recruitment process launched in December 2025 to support the company’s next phase of strategy execution, according to a company announcement today.
Blumberg has served as CEO of Mapvision Oy since 2018. Earlier, he held several international executive roles, including at Valmet Automotive, where he oversaw operations and business development, and at Lemminkäinen Plc, where he led the paving business and served on the group executive board.
The leadership change comes amid a high rate of management turnover and restructuring at the company. In recent months, Chief Operating Officer Tommi Malinen and Chief Communications Officer Tommi Manninen left the executive team, while CFO Risto Takkala stepped down in December 2025, with the finance function temporarily outsourced. At the same time, the company appointed Rear Admiral (ret.) Juha Vauhkonen as director, strategy, and Leo Vanhatalo as director, sales and marketing, to support the rollout of its new strategy.
“Summa Defence is a significant Finnish company focused on comprehensive security,” Blumberg said. “I am excited and humbled by the opportunity to join in executing Summa Defence’s recently updated strategy.”
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