Tarja (MSc. In Engineering, PhD in Tech) is Partner, co-founder and member of the Board at Loudspring (former Cleantech Invest; www.cleantechinvest.com), investment and development firm founded in 2005. Loudspring currently has 12 firms in its investment portfolio. Loudspring invests in early-stage cleantech ventures in the Nordic area, with investment focus being smart energy and clean environment. Since 2014 Loudspring shares are traded at Nasdaq OMX First North Helsinki.