# Marginum

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/marginum

- Industry: Medical Devices & Equipment
- Headquarters: Tampere, Finland
- Website: www.marginum.com
- Total disclosed funding: $1.1M
- Latest round: Seed (Nov 5, 2023)
- Investors on record: 3

## About

Founded in 2020 and based in Tampere, Finland, Marginum Oy is a medical technology startup that is developing tissue detection systems based on fluorescence. As of 2022, Samu Lehtonen is the CEO of the company. In August 2025 Marginum Oy raised EUR 2.5 million in pre-series A funding led by returning investor Nostetta Ventures, with participation from other returning investors Redstone and Almaral. New investors Lynx Financial Crime Tech S.A.U., Business Finland Venture Capital along with individual and other unspecified investors also participated in the round. The company offers a real-time operating device that monitors the content of surgical suction fluids based on fluorescence intensity and provides objective and precise feedback to the surgeon if any traces of tumour are present in the resected tissue. The firm also provides data-driven solutions for monitoring tumour tissues during cancer surgery without interfering with pre-existing surgical workflows. The company will use the August 2025 funding to support the further development of its fluorescence-based tissue detection systems.

## Funding rounds

- Seed, Nov 5, 2023, $1.1M — Redstone, Nostetta Ventures, Almaral

## Investors

- Redstone (https://capitalatlas.ai/funds/redstone) — Seed
- Nostetta Ventures (https://capitalatlas.ai/funds/nostetta-ventures) — Seed
- Almaral (https://capitalatlas.ai/funds/almaral) — Seed