Altss is an allocator intelligence platform covering family offices, limited partners, general partners and RIAs. It builds its data from open-source intelligence and cites the evidence behind each finding. Dawid Siekiera, formerly a General Partner at Infinium Venture Studio, founded it in 2025 after running into outdated static LP databases while raising capital. Altss publishes coverage of more than 30,000 investors and allocators, including more than 9,000 family offices.
Altss is built for fund managers and IR teams looking for family office investors whose history fits a fund, and for teams researching European and North American family offices. Teams comparing family office data providers may also review FINTRX.
Altss is a young company founded in 2025. Pricing is published: Europe family offices $5,000 a year, North America family offices $8,000 a year, global family offices $15,000 a year and Full Market $25,000 a year, with extra named users at $5,000 a year each.
Dawid Siekiera, formerly a General Partner at Infinium Venture Studio, founded Altss in 2025.
Altss publishes coverage of more than 9,000 family offices within over 30,000 investors and allocators.
Regional family office plans start at $5,000 a year, global family offices cost $15,000 a year and Full Market costs $25,000 a year.
Strengths. Evidence-cited, OSINT-based data; Transparent published pricing; Regional family office plans.
Watch-outs. Founded 2025; short track record; Built for fundraisers, not family office operations; Extra users cost $5,000/year.
Built for Fund Managers, Investment Teams.
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