SisuSemi
Company

A small Finnish team
changing the atom-scale.

SisuSemi Oy was founded in Turku in 2024 to commercialise 10+ years of atomic-level surface research from the University of Turku.

Heritage

Finnish research,
global silicon.

SisuSemi Oy was founded in 2024 in Turku, Finland. The ALP™ technology behind it is built on more than a decade of materials research at the University of Turku — with the first patents filed in 2015. All university IPR has since been transferred to SisuSemi.

Founded 2024 · Turku, FinlandPatents since 2015JP, TW & EPO granted in 2025€1M+ pre-seed (2025)
SisuSemi office at Datacity, Lemminkäisenkatu 14–18, Turku
Datacity · Lemminkäisenkatu 14–18
SisuSemi HQ & AtomSeal™ lab, Turku
10+
Years of research
2015
First patents
€1M+
Pre-seed raised
Leadership

Process chemistry, fab discipline, founder speed.

Erkki Seppäläinen
Erkki Seppäläinen
CEO, Co-founder
Zahra “Elmira” Jahanshah Rad
Zahra “Elmira” Jahanshah Rad
CTO
Markku Lammassaari
Markku Lammassaari
CMO
Pasi Pietilä
Pasi Pietilä
COO
Raimo Malila
Raimo Malila
CBDO
Mikko Miettinen
Mikko Miettinen
R&D
Scientific & business advisors

Guided by operators who've shipped silicon at scale.

Pekka Laukkanen
Pekka Laukkanen
Advisor
Gerard de Bourbon
Gerard de Bourbon
Advisor
Thorsten Lill
Thorsten Lill
Advisor
Kalevi Kokko
Kalevi Kokko
Advisor
Risto Punkkinen
Risto Punkkinen
Advisor
Milestones

A short history, a clear direction.

2015
First patents filed protecting ALP™ technology at the University of Turku.
2024
SisuSemi Oy founded in Turku, Finland.
Mar 2025
€1M+ pre-seed funding round announced (Butterfly VF, EIF, Business Finland and others).
Aug 2025
Patents granted in Japan, Taiwan and via the European Patent Office.
Mar 2026
AtomSeal™ UHV cleaning system commissioned with IPG Photonics laser heating.
Next step

Send samples.
See the numbers on your stack.

Pick one of the three published engagements — Components (12 chips), Surface quality (wafers), or Feasibility (wafers on your flow) — and we'll quote scope, timeline and KPIs.

Ask for a quoteRead the technology brief
Mutual NDAKPIs agreed up frontSamples returned