Key facts
- SIEVE’s last known valuation is $820K (Aug 2023).
- It has raised $1.3M; the latest was Early Stage VC ($950K) in Apr 2026.
- Notable investors include Obloo Ventures, Tech4Planet, Cassa Depositi e Prestiti, Encubator, Hello Tomorrow — 11 tracked in total.
- 1 investment vehicle was formed to buy SIEVE shares in the last 12 months, reporting $525K sold to 14 investors, per SEC Form D filings.
- Status: Privately Held (backing).
- ·The complete investor list — 11 names
- ·Watchlist + deal alerts for SIEVE
- ·The full record, as it builds
Funding rounds
No funding rounds for SIEVE are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Secondary demand: investment vehicles
from SEC Form D filingsIn the last 12 months, 1 investment vehicle were formed to buy SIEVE shares, reporting $525K sold to 14 investors. Most recent filing Feb 2026. Vehicles like these are how secondary buyers pool demand for a name; a rising count is a demand signal.
About SIEVE
Manufacturer of filtration systems intended to simplify the physico-chemical treatment of industrial wastewater. The company offers a filter that replaces traditional treatment methods, reduces operational complexity, and supports compliance with discharge standards, enabling industrial operators to lower operating costs and improve wastewater management efficiency.
- Sector
- Business Products and Services (B2B)
- HQ
- Bergamo, Italy
- Founded
- 2022
- Employees
- 9
- Website
- sie-ve.it/
- Ownership
- Privately Held (backing)
SIEVE doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in SIEVE shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on SIEVE in its N-PORT filings yet. We sweep new filings monthly.