M&G’s impact investing unit responsAbility Investments announced today the appointment of Nadia Nikolova as its new Chief Executive Officer, taking over the role in September 2025 from outgoing CEO Rochus Mommartz, who has announced plans to retire at the end of the year.
Founded in 2003, Zurich-based responsAbility is an impact asset manager specializing in private market investments, with a focus on three key investment themes, including financial inclusion, climate finance, and sustainable food. The firm was acquired by international savings and investments business M&G plc in 2022, and has assets under management of approximately $5.6 billion.
Emmanuel Deblanc, Chair of the Board of responsAbility and Chief Investment Officer of M&G’s Private Markets business, said:
“We look forward to welcoming Nadia to responsAbility – a business that is important to the growth of our private markets strategy as investors seek managers with proven track records in financial inclusion, climate finance and sustainable food. responsAbility has unrivalled expertise in these areas, which benefit M&G’s wider EUR 90 billion private markets business, and with Nadia’s leadership and success in scaling impact strategies, we will further our ambitions to the benefit of societies, the environment and investors.”
Nikolova joins responsAbility from Allianz Global Investors (AllianzGI), where she most recently served as Managing Director and Head of Direct Lending. Nikolova established AllianzGI’s sustainable and impact credit investment team in 2019, and has scaled its blended finance strategy. Prior to joining AllianzGI, she worked at Citigroup in London, with a focus on infrastructure finance and credit restructuring.
Nikolova said:
“I’m honoured to join responsAbility at such a pivotal time in the evolution of impact investing. For more than two decades, responsAbility delivered measurable outcomes across financial inclusion, climate finance and sustainable food – areas I’m deeply passionate about. I’m excited to build upon this foundation working with the team and M&G to scale innovative, high-impact strategies that aim to deliver financial performance to our clients that generate long-term measurable positive impact for our communities.”
