Switching CLM Providers for Law Firms (the UK, 2026)

Law firms use contract tooling differently from in-house teams. A firm drafts and reviews on behalf of clients, bills by time or value, and runs work matter by matter, so the tool has to fit a matter-centric way of working and the economics of billable time. When a firm switches, it is usually because the current tool is costing fee-earners minutes that should be chargeable, or because a newer tool reviews and drafts fast enough to change how the firm prices work. This guide is for partners and legal operations leads at UK firms weighing a move: the honest reasons to switch, how to migrate matters and precedents, and how to test a replacement on your own drafting and review. It is general guidance; take your own advice. ## Why firms switch The triggers are commercial. Review and first-pass drafting are slow, so fee-earners spend chargeable hours on work that should be faster, which hurts realisation on fixed-fee and capped matters. Precedent and clause banks are hard to maintain, so quality depends on which associate picks up the file. The tool does not fit a matter-centric structure, so documents, correspondence and deadlines live in separate places. Reporting is weak, so partners cannot see risk and deadlines across matters. And AI review has moved on, so rivals are turning around due diligence faster. Name the specific failures, because they become your test criteria. ## Migrating matters and precedents For a firm the sensitive content is your precedent bank, your drafting notes and your matter records. Before switching, export and inventory your precedents and clause bank and confirm you can rebuild them in the new tool with structure intact, so a fee-earner still reaches the firm's approved drafting quickly. Check you can export matter documents and metadata cleanly from the incumbent, and that client confidentiality and retention obligations are preserved through the move. Confidentiality and data handling are not optional for a firm: the replacement must meet your professional and regulatory duties before anything else is considered. ## Testing a replacement on your own work Do not choose on a scripted demo. Run a reproducible trial on your own documents. Take a fixed set, for example 20 agreements across the work you do most (commercial contracts, NDAs, MSAs, and a representative due-diligence bundle), and run the same set through each shortlisted tool. Score them on identical, billing-relevant measures: review and first-draft time per document, critical-clause and risk-flag detection rate against a senior lawyer's read, how faithfully each reproduces your precedents, and three-year total cost per fee-earner. Writing the criteria down makes the result reproducible by any colleague and lets you translate time saved into realisation and capacity. The tool that wins on your own work, under your own precedents, is the one that improves the firm's economics. ## A short migration checklist Export and verify precedents, the clause bank and matter records with metadata. Rebuild precedents and clause banks in the new tool and have a senior fee-earner check them. Re-map how matters, documents, deadlines and clients link together. Confirm confidentiality, access control and retention settings. Pilot on a few live matters with a small group of fee-earners before a firm-wide rollout, then cut over and retire the old tool. ## The main options in the UK in 2026 Name the field neutrally. Many firms run a document and matter management stack (such as iManage or NetDocuments) alongside dedicated contract tooling, so a replacement has to coexist with that. Among CLM and AI contract tools, Ironclad is a deep workflow platform, Juro is UK-founded with strong editing and self-service, LinkSquares focuses on post-signature analytics, DocuSign CLM extends familiar e-signature, and SpotDraft is AI-forward. Dedicated AI contract-review tools also compete for the due-diligence use case. Several are quote-only, so confirm current pricing with the vendor and check fit with your existing document management. ## Where Adira fits Adira is the option whose own benchmark is drawn from law firms, which makes it directly relevant here. Adira is an AI legal operating system built on Anthropic's Claude over a structured clause tree: drafting from a catalogue and brief, a document-intelligence dashboard that flags per-clause risk and compliance, plain-English clause editing with a diff, and files, cases and a matter timeline in one workspace. Its own measured result, across 18 law firms that use it, is contract review and due diligence cut from 10 to 12 days to under 2 hours with only 2 to 3 rechecks; that is Adira's benchmark, presented as its own and not an independent study, and it has not published an adjudicated head-to-head against a named rival, so test it on your own bundle in the 7-day trial. Pricing is public, Practice at $89 and Firm at $179 per seat per month billed annually (about £70 and £140, approx, confirm current pricing), which lets you model cost per fee-earner directly. Adira does not train on your contract corpus, with encryption in transit and at rest and role-based access (SSO/SAML, audit logs and data residency on Enterprise). It is India-first with UK and other jurisdictions architected and expanding, so confirm UK depth for the work you do before relying on it. More at Adira. ## Watch the economics of the switch itself The switch has its own cost in fee-earner time: rebuilding precedents, learning the tool, and running two systems in parallel are all hours that are hard to bill. Plan the move so that disruption falls outside your busiest matter periods, and lean on a small group of fee-earners to rebuild and test precedents rather than pulling the whole firm off chargeable work. Measure the time recovered after the switch against the time the switch cost, so partners can see the payback period plainly. A firm that treats the migration as a project with its own budget and owner, rather than something squeezed between matters, switches faster and with less friction, and is far more likely to realise the time savings that justified the move. ## Bottom line For a firm, switch when the current tool is costing billable time or holding back how you price work, and when a replacement can be shown to recover that time. Protect your precedents and your confidentiality and retention duties through the move, test the shortlist on your own documents against written, billing-relevant criteria, and pilot on live matters before rolling out. Choose on measured time saved against your own work, not on the demo.