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    Directory

    Infrastructure Software Directory

    108 products scored in our 6 published Ledgers, from hypervisors to managed Kubernetes. Every listing shows the Ledger scores, what the product does well, where it is weak, how much lock-in it brings and which alternatives score close to it. Anyone can add a review without an account.

    Scores from public release records only

    No paid placement and no vendor briefings

    Anonymous reviews, checked before they appear

    How the directory works

    Each listing comes from a Ledger, our scored study of what vendors actually shipped, year by year. The Ledger Index (0 to 100) adds capability, release credibility, buyer risk, lock-in and AI delivery. The editorial part of every listing is that score and its notes, and it changes only when the Ledger is updated.

    User reviews sit next to it. You can post one without signing up: pick a rating from 1 to 5 and say what you run and what happened. We read every review before it appears and remove adverts, spam and personal attacks. Vendors cannot pay to be listed, ranked or reviewed. See the Ledgers & Reports for the full method.