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Energy

UniSieve: Funding, Investors & Team (Sep 2026)

UniSieve is a clean technology firm in Zurich, Switzerland that offers molecular separation membrane solutions for different purposes. Their platform technology allows them to combine different molecular sieves and polymeric membranes, resulting in trustworthy separation solutions. The company was established in 2018.

www.unisieve.com LinkedIn Zürich, Switzerland 11-50 employees
Chemical CleanTech Oil and Gas Renewable Energy B2B
Total raised
$5.6M
Rounds
3
Latest
Undisclosed round
Oct 2023

UniSieve has raised $5.6M across 3 funding rounds on record, the most recent an undisclosed round announced in Oct 2023.

UniSieve Company Profile and Key Stats

Total funding raised
$5.6M
across 3 rounds on record
Funding rounds on record
3
1 with no disclosed amount
Latest funding round
Undisclosed round
Oct 2023
Employees
11-50
reported band
Headquarters
Zürich, Switzerland

Latest funding round on record: Oct 2023.

UniSieve Funding Rounds

Date
Round
Amount
Undisclosed round
Undisclosed
Seed
$5.4M
Undisclosed round
$200k

1 of 3 rounds was announced without a disclosed amount and is excluded from the total.

UniSieve raised $200k in an undisclosed round announced in Nov 2020.

2.4 years later, a Seed of $5.4M was announced in Apr 2023.

6 months later, an undisclosed round was announced in Oct 2023 with no disclosed amount.

UniSieve Founders and Leadership Team

Name
Role
Contact
Samuel Hess
CEO
Locked

Contact details for the UniSieve team: 1 of 1 has an email address on file.

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UniSieve Funding Compared to Other Energy Startups

Segment
Companies
Median round
2,284
$14M
883
$3.8M

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UniSieve Funding FAQs

What does UniSieve do?

UniSieve is a clean technology firm in Zurich, Switzerland that offers molecular separation membrane solutions for different purposes. Their platform technology allows them to combine different molecular sieves and polymeric membranes, resulting in trustworthy separation solutions. The company was established in 2018.

How much funding has UniSieve raised?

UniSieve has raised $5.6M across 3 rounds on record.

When did UniSieve last raise funding?

UniSieve's most recent funding round on record was announced in Oct 2023. The amount was not disclosed.

Who is the CEO of UniSieve?

Samuel Hess is listed as CEO at UniSieve.

Where is UniSieve headquartered?

UniSieve is based in Zürich, Zurich, Switzerland.

How many employees does UniSieve have?

UniSieve is in the 11-50 employee band.

About FundedIQ's UniSieve Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for UniSieve is left off this page rather than filled in.

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