Single Family Office

Proventus

Proventus is a single-family office headquartered in Stockholm, Sweden. Founded in 1969, it manages the fortune created by investor Robert Weil through five decades of contrarian equity, credit, and alternative investments, stewarding assets for the Weil...

Proventus

Proventus

Proventus is a single-family office headquartered in Stockholm, Sweden. Founded in 1969, it manages the fortune created by investor Robert Weil through five decades of contrarian equity, credit, and alternative investments, stewarding assets for the Weil family and its philanthropic foundation—deploying patient capital to European mid-market companies in transition and selective global long-term growth initiatives.

General information

Firm type

Single Family Office

Year founded

1969

AUM

Location

Region

Europe

Country

City

Stockholm

Corporate office

Katarinavägen 15

Frequently asked questions

What is Proventus?

Proventus is a single family office headquartered in Stockholm.

When was Proventus founded?

Proventus was founded in 1969.

Where is Proventus headquartered?

Proventus is headquartered in Stockholm, in the Europe region.

What does Altss track for Proventus?

Altss maintains an OSINT-verified profile of Proventus covering investment focus (ESG policy, ticket size, target IRR, currency preference, regional focuses, industry focuses, technological focuses), team (service providers and advisors), deals (company deals and fund commitments), assets (real estate, public market positions, private companies, art and cultural holdings, philanthropy and foundations), and network (club memberships, associations, and event participation). Detailed values are available to Altss subscribers.

What is Proventus's website?

Proventus's public website is www.proventus.se. Verified contact details for principals and decision-makers are available to Altss subscribers.

What type of firm is Proventus?

Proventus is classified by Altss as a Single Family Office within the Europe region.

How does Altss source intelligence on Proventus?

Altss combines OSINT (open-source intelligence) with regulatory filings, public disclosures, and licensed data partners. Source provenance is tracked to support compliance-ready research workflows.

How fresh is the Altss profile for Proventus?

Proventus's profile is part of Altss's continuous-refresh dataset, with a full update cycle at least every 30 days and priority changes applied as new information is verified.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Continuous refresh with full update cycles at least every 30 days.

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