Best Locum Legal Recruitment Agencies in the UK for 2026

A locum lawyer is a solicitor, legal executive, licensed conveyancer or paralegal who works for a firm or legal department on a temporary basis to cover a gap: holiday, sickness, parental leave, a sudden spike in caseload, or the months between one permanent hire leaving and the next arriving. Assignments are usually paid by the day or hour and can be office-based, hybrid or fully remote.

Firms use locum agencies because they need someone competent within days, and building and vetting a bench of available lawyers is not something a practice manager can do in an afternoon. Lawyers use them because agencies see the assignments first, handle the contracting and payment, and know which firms are worth working for. Most locums also find that a good agency gives them something a job board cannot: a consultant who rings when a suitable assignment comes up rather than waiting for them to apply.

Spirehouse Recruitment is a Bromsgrove-based agency whose legal division is built around locum work first and permanent placement second. That ordering matters. Most legal recruiters treat locums as a sideline to their permanent desks, whereas Spirehouse's co-founder and locum director Luke Grant has spent close to fifteen years in legal recruitment and has organised the team into separate locum, permanent and public sector desks. The locum desk is led by a principal consultant with eighteen years of contract recruitment behind him, with consultants covering the East and West Midlands, the South East, the South West and the South Coast.

On its services page Spirehouse quotes a bench of more than 800 available locums, relationships with more than 250 firms and a 94 per cent fill rate on locum assignments. Those are its own figures, but they are consistent with the kind of work you see on its jobs board: private client, family, residential and commercial property, personal injury and clinical negligence, employment, litigation and corporate, at firms ranging from high street practices to the top 50. Assignments run from short holiday cover to longer maternity or recruitment-gap contracts, and the agency positions itself on speed, which is the thing firms actually pay a locum agency for. A separate public sector desk, led by an associate director with around twenty years in interim recruitment, places lawyers into local government legal teams nationally.

For candidates the practical draw is that locums are treated as the core product rather than an afterthought. Spirehouse publishes its own guide to becoming a locum lawyer and explainers on IR35 and payment methods, and its client reviews repeatedly mention consultants checking in during an assignment rather than disappearing once the timesheet portal is set up.

The process itself is straightforward. Register through the legal division or apply to a live role, and a locum consultant will talk through your practice area, availability, preferred regions and rate before putting you forward. Once an assignment is agreed, Spirehouse handles the contract and status determination, hours go through an online timesheet portal, and the agency's own guides cover the questions new locums tend to have about IR35, umbrella versus limited company payment and Making Tax Digital. Firms get the mirror image: a single call to describe the gap, a shortlist of available, vetted locums, and a consultant who stays on the assignment until it ends, which is why so many of its clients come back for the next period of cover rather than shopping around.

Spirehouse is a relatively young brand, but it has grown quickly, and the combination of experienced consultants, a large locum bench and a reputation for responsiveness has given it a strong presence in a short time. Its heartland is the Midlands, with reach across central England and the South, and that is where it is at its best. For a solicitor, legal executive or paralegal in those regions who wants steady locum work at firms from the high street to the top 50, or for a firm there that needs cover this week, it should be one of the first agencies you register with.

Interim Lawyers is the locum arm of the Ten Percent Group, which has been running legal recruitment since 2000 and gives a tenth of its profits to charity. It is a locum-only operation and claims a database of more than 1,500 registered locum solicitors, legal executives, paralegals, cashiers and in-house counsel, having placed with over 3,000 law firms and several hundred in-house departments. Coverage spans conveyancing, family, employment, private client, commercial property, corporate and compliance work including COLP and COFA cover, and the group's offices in London, Mold, Brighton, Bristol, Coventry and Glasgow give it a genuinely national reach.

Its model is closer to a marketplace than a boutique desk. Locums are usually self-employed consultants contracting directly with the hiring firm, and the candidate site is strong on self-service material: hourly rate guides, calculators, CV advice and FAQs. That suits experienced locums who know their rate and want volume.

The downside is that the same scale makes the service less hands-on. You will not get the same consultant walking you through each assignment as you would at a smaller desk, there is no permanent recruitment if you later want to settle, and its presence in Scotland is limited to one office.

Sellick Partnership has recruited lawyers for more than twenty years and is the largest specialist on this list, with seven UK offices in Manchester, Leeds, Liverpool, Newcastle, Derby, Birmingham and London and around forty legal consultants and compliance staff. At the time of writing it reports more than a thousand legal locums out on assignment, most of them in local authorities, housing associations, universities and central government, alongside private practice and in-house work.

If you want public sector locum work this is the agency with the deepest bench of it. Its compliance team has won APSCo and Recruiter awards, which matters more in locum recruitment than in permanent work because vetting, right-to-work checks and IR35 status determinations are what slow assignments down. It also runs a permanent desk from paralegal to general counsel, so you can move between locum and permanent without changing agency.

The limitation is the flip side of its size. Public sector locum roles are its engine room, and the private practice locum offering, particularly at City firms, is thinner. Candidates sometimes describe the experience as efficient rather than personal.

Venn Group is a multi-sector interim recruiter with a dedicated public sector legal team, and it is the name that comes up most often when a council legal department needs a locum childcare, housing, planning or contracts lawyer. It recruits across a network of regional offices in England and Scotland and works with local authorities, NHS bodies, housing providers and other public organisations on contract, fixed-term and locum roles from lawyer to head of legal.

Its strength is process. Public bodies procure locums through frameworks with strict compliance requirements, and Venn Group is set up for exactly that: fast vetting, umbrella and PAYE options, and consultants who understand the rates councils will actually pay. For a lawyer who wants a reliable pipeline of public sector interim work it is hard to beat.

The downside is that private practice is not its market. If you want locum work at law firms, or you are a paralegal or junior lawyer rather than a qualified practitioner, you will find little for you here, and because it recruits across many sectors its consultants are not all legal specialists.

Chadwick Nott is a nationwide legal recruiter with offices in Birmingham, Bristol, Leeds, Liverpool, London and Manchester, and its interim and locum desk covers private practice, in-house teams and public sector organisations from newly qualified upwards. Assignments range from one or two day pieces of work through maternity cover to long-running projects, across corporate, banking, litigation, employment, family, real estate, regulatory, IP and private client work.

Two things set it apart. It has genuine reach into City and international firms for interim work, which most locum agencies do not, and it runs a dedicated document review team that says it places around 300 lawyers a year into London projects, often prizing language skills. For a lawyer who wants interim work at larger firms or a foot in the door at an LPO, it is the natural choice on this list.

The limitation is that interim is one division of a permanent-led business, so the locum offering is less deep at regional high street firms, and a lot of the volume is document review rather than fee-earning cover.

LAW Absolute is a London legal recruiter founded in 2003 that places solicitors, barristers, paralegals and contract managers into both permanent and interim roles. Its client base is unusually broad for a London-only shop: private practice firms, in-house teams, central government departments, regulators and not-for-profits. It is a member of the Recruitment and Employment Confederation and an FCSA recruitment partner, which is worth noting because it means umbrella and contractor payment arrangements are handled through accredited providers.

It is a good fit for lawyers who want London contract and interim work in commercial, real estate finance, construction, employment or restructuring matters, or who want to move into government legal work on an interim basis without going through a public sector framework agency.

The downside is geography. Outside London and the occasional Swindon or Cambridgeshire role, there is little on offer, so regional locums will find the other agencies here more useful.

Locum agencies are paid differently from permanent recruiters, and it helps to understand the mechanics before you register.

Margin on the rate. The firm agrees a day or hourly charge rate with the agency. The agency pays the locum a lower rate and keeps the difference, typically somewhere between 15 and 30 per cent of the charge rate depending on the seniority of the role and how hard the assignment is to fill. You are entitled to know your pay rate up front; you are not usually told the charge rate.

Payment routes. Locums are paid one of three ways: through the agency's PAYE payroll, through an umbrella company, or through their own limited company. Which routes an agency offers, and whether it insists on an accredited umbrella, is a legitimate question to ask before accepting a role.

IR35. Since 2021 medium and large clients, and all public bodies, must decide whether an assignment falls inside or outside the off-payroll rules. Inside-IR35 roles are taxed like employment even if you invoice through a limited company. Good agencies tell you the status determination when they send you the role, not after you have accepted it.

Direct contracting. Some agencies, Interim Lawyers among them, introduce a self-employed locum who then contracts directly with the firm. The agency's fee is charged to the firm separately. Check whose professional indemnity insurance covers you in that arrangement; it is usually the firm's.

Registering with the wrong locum agency costs you time rather than money, but it is still worth choosing deliberately. Five checks:

1. Is locum work its core business or a sideline? An agency with a dedicated locum desk will call you when cover comes up. One that runs locums off the side of a permanent desk will call you when it remembers.
2. Does it cover your sector? Public sector locum recruitment is a framework-driven, compliance-heavy market. Private practice locum work is relationship-driven. Very few agencies are equally strong at both, so match the agency to the work you actually want.
3. Does it cover your region? Locum roles are often on site, at least partly. A London-only agency is little use to a family lawyer in Worcester, and vice versa.
4. How does it pay? Ask which payment routes it offers, whether its umbrella partners are FCSA accredited, and how quickly timesheets are paid. Weekly payment is standard; monthly is a warning sign.
5. What happens during an assignment? The best locum consultants check in during the first week and again before the end date, because extensions and the next assignment both depend on it. Ask how the agency handles that.

Locum work rewards lawyers who treat it as a business rather than a gap between jobs.

• Keep your practising certificate and CPD current. Agencies cannot place you without them, and firms will not wait while you renew.
• Register with two or three agencies, not ten. Firms often list the same assignment with several agencies. Being submitted twice for the same role by different agencies causes arguments over who introduced you and can cost you the job.
• Be clear about availability and rate. Locum consultants work fast. If you take two days to respond, the assignment has gone.
• Say yes to short assignments early on. A fortnight of holiday cover that goes well is how most locums get their first six-month contract.
• Get the extension conversation started early. If an assignment is going well, tell your consultant three or four weeks before the end date, not the week before.
• Keep records. Timesheets, contracts and status determinations for each assignment. HMRC can and does ask.