Cellfion
Stockholm area, Sweden · est. 2021 · website ↗
Registered as Cellfion AB
Cellfion develops PFAS-free, bio-based membranes made from wood cellulose for energy storage devices including redox flow batteries.
SurvivalStrongRunway ~29 mo
CapitalSeed
SectorEnergy, climate & industry
Employees17 (registry FY2025)
Age5 years est. 2021
FitChaos
Buildingcheck site
LanguageEnglish site
Open rolescheck site
Filed financials
Filed with a public registryFiled with Bolagsverket. The legal entity, not the group.
| Fiscal year | Revenue | Result | Employees | Cash | Equity | Total assets | Flags |
|---|---|---|---|---|---|---|---|
| FY2025 | 0.5 MSEK | -8.7 MSEK | 17 | 21 MSEK | 13 MSEK | 28 MSEK | None |
| FY2024 | under 0.1 MSEK | -12 MSEK | 17 | 15 MSEK | 22 MSEK | 32 MSEK | None |
| FY2023 | 0.1 MSEK | -6.1 MSEK | 11 | 4.7 MSEK | 5.3 MSEK | 8.8 MSEK | None |
| FY2022 | under 0.1 MSEK | -2.7 MSEK | 3 | 13 MSEK | 11 MSEK | 13 MSEK | None |
No open roles right now
Cellfion's own site sends applicants to LinkedIn, which I do not read.
Cellfionon LinkedIn Jobs ↗Registered business activity (SNI)
Filed with a public registryStandard industry classification codes as filed with Bolagsverket.
Batteri- och ackumulatortillverkning
Everything I could know about Cellfion
A blank is a gap in my coverage.
Company health
Filed with a public registry- SurvivalRunway ~29 moLoss-making in its latest filed accounts (FY2025). cash 21 MSEK, loss 8.7 MSEK over the year (0.7 MSEK/month), revenue 0.5 MSEK, revenue growth 2850%. Cash divided by that burn is ~29 months of runway. Filed facts, but the burn is the accounting result rather than true cash flow, and a funding round raised since the filing date does not show here yet.
- Age5 years oldFounded 2021, 5 years ago.
- CapitalSeedSelf-reported to the startup directory.
- Distress flagsNo data for this company yet
- GrowthSteadyAverage employees filed with Bolagsverket went from 17 in 2024 to 17 in 2025, effectively unchanged. This is a fiscal-year average from filed accounts, so it lags: it says whether the company has been adding people, not whether a role is open today. Filed revenue FY2022 7 KSEK to FY2025 501 KSEK, across 4 filed years.
What you'd build and work with
Read from their job ads- Building (problem type)No data for this company yet
- StackNo data for this company yet
- Role shapeNo data for this company yet
- SectorEnergy, climate & industryMapped from the industry tags this company reported to the startup directory (Energy). Self-reported, so it is the company's own claim about its market.
- Engineering reputationRead from what they publishNo data for this company yetCompany websites plus the public GitHub API. Broader discovery via GitHub search would need an API token.
Hiring practicalities
Read from their job ads- Open rolesNo data for this company yet
- Working languageEnglish siteI hold no job-ad text for this company, so this is read from their own site: their website reads as English. That is a proxy, not a statement about the working language. Checked against the 222 companies where I have both, it agrees about 9 times in 10, and the way it fails is a company running an English site while hiring only in Swedish.
Fit and mission
Worked out from facts I hold- Fit (chaos or structure)Chaosfounded 2021 (5 years ago), ~17 employees, Seed stage. Age, size and stage combine into the read.
Companies like this one
Worked out from facts I holdEach shows why. Not a recommendation.
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
- Also Energy, climate & industry · Similar size (10 to 50) · Same age (3 to 5 years)
Work here?
Nobody has answered yet. Same questions for every company.
Answer for this companyOn the map
Junohällsvägen 1E, 11264 STOCKHOLM
Address as filed with Bolagsverket.
Drawn by OpenStreetMap, so it only loads when you ask for it.
Wrong about Cellfion?
The address, the headcount, the logo, a role that closed. Tell me which and I will fix it.