Meet Diamind, building sustainability reporting on autopilot

From left: Melina Diamantoglou (CEO) and Hans Hemmingsson (Co-founder).

The problem

Funds and their portfolio companies collect, check and reformat the same sustainability data again and again.

A new reporting request too often means starting over.

What Diamind does

Starting with funds and their portfolio companies, the team is developing an AI-powered system to turn existing documents into source-linked sustainability data.

Companies confirm the values, and approved information can be reused across reporting needs.

The bigger picture

Fund reporting is the entry point, not the limit of the ambition. The broader vision is a trusted company data foundation that supports financing, procurement and investment decisions, turning reporting from a recurring burden into a lasting asset.

How it started

Melina began her entrepreneurial journey early, driven by a desire to make a positive impact. Her interest grew to include the people financing that impact: how do investors assess it, compare it and decide what to back?

She saw a fragmented landscape of standards and reporting requirements intended to bring clarity, but also creating more work for companies and investors. In conversations with Hans, that observation grew into a shared ambition: to turn reporting complexity into trusted, reusable company data, make impact investing more attractive and help European innovation scale. Diamind grew from that ambition.

Why this team

Founder and CEO Melina Diamantoglou, 19, began her entrepreneurial journey at 11, driven by sustainability. Focused on helping European innovation scale, she co-founded AI Salon Stockholm and is involved with AI Laboratory Monaco and with SWENODE.AI. She has also been active in a sustainability organisation for 5+ years.

Co-founder Hans Hemmingsson brings extensive experience as a serial entrepreneur and angel investor, alongside many years of investment banking experience at an executive level from investment banking boutiques.

Why Sting

Through Sting, Diamind is working closely with funds and portfolio companies to understand where reporting creates the most friction and what existing tools leave unresolved.

The team is turning those insights into product priorities, focusing on reducing repetitive work and making sustainability information more useful. Sting’s network helps bring the right people into those conversations and strengthen customer relationships.

Diamind is one of 21 startups in Sting Core Fall 2026. Meet the rest of the cohort in Meet the 21 startups joining Sting this autumn.