AltStreet
Depends
Confidence: Medium
Buy it if you seriously allocate into alternatives and need forensic, fee-normalized platform diligence backed by SEC filings.
Comparison
AltStreet vs Preqin
AltStreet and Preqin both land on Depends.
Preqin
Depends
Confidence: Medium
Buy if you're an institutional allocator, fundraiser, or consultant who needs private-markets data daily and can absorb $25k+/year.
| Compare | AltStreet | Preqin |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Family offices allocating across alternatives | Institutional allocators and LP diligence teams |
| Who it's not for | Casual investors making one or two crowdfunding bets | Emerging or first-time fund managers . priced out |
| Privacy | No known public vulnerabilities found in the sources reviewed.⁶ | No confirmed breaches found; Hudson Rock flags 205 infostealer credentials tied to; product security page is published. |
| Support quality | No support evidence found. | No user support evidence found |
| Public sentiment | No verified user reviews found; third-party sites cite AltStreet's research findings rather than customer feedback.⁹ | Users find Preqin Pro genuinely useful for private-markets data, but pricing opacity and a middling 3.8/5 comparison score temper enthusiasm.15 |
| Biggest gotcha | Pricing tiers not shown publicly; subscribe page gates actual costs behind signup.⁴ | Entry tier runs ~$25k/year; full multi-asset-class datasets cost more14 |
Pick AltStreet when
- Family offices allocating across alternatives
- RIAs vetting crowdfunding platforms
- Researchers needing fee-normalized alt data
- Diligence on pre-IPO SPVs
When AltStreet is not a fit
- Casual investors making one or two crowdfunding bets
- Anyone requiring SOC 2 or vendor security docs upfront
- Public-markets-only portfolios
- Teams wanting free data; no visible free tier
Pick Preqin when
- Institutional allocators and LP diligence teams
- Fundraisers targeting LPs across alternatives
- Consultants and researchers needing private-market benchmarks
When Preqin is not a fit
- Emerging or first-time fund managers . priced out
- Anyone needing public-markets data
- Small firms without a $25k+/yr data budget
- Buyers who want transparent, self-serve pricing
Sources
- AltStreet - Alternative Investment Intelligence & Researchaltstreet.investmentsofficial
- Alternative Investment Platform Reviews | Compare 100+altstreet.investmentsofficial
- Alternative Investment Due Diligence Services | AltStreet Researchaltstreet.investmentsofficial
- A Unified Intelligence Layer for Alternative Assets (Subscribe)altstreet.investmentsofficial
- AltStreet Blog (Linqto SPV audit, ATS census)altstreet.investmentsofficial
- Security pagealtstreet.investmentssecurity
news
- Harvest Returns Review citing AltStreet's independent findingsangelinvestorsnetwork.comreview
news
- AltStreet Investments YouTube channelyoutube.comofficial
- Preqin homepage . a part of BlackRockpreqin.comofficial
- Preqin Pro product pagepreqin.comofficial
- Benefits of your Preqin Free Accountpreqin.comofficial
- Preqin Pricing 2026: Entry Starts Around $25,000 a Yearpipelineroad.comreview
- Preqin Pro Reviews on G2g2.comreview
review