How Mishcon de Reya helped launch a $500m legal tech company
From its early days inside Mishcon, Laurel has grown from automating timesheets to helping law firms price their work.
Contents
Laurel is expanding beyond automated timekeeping as law firms grapple with how AI will change the economics of legal work.
The company got its start inside Mishcon de Reya's London incubator and now wants to use the data it captures from lawyers' work to help firms price matters.
When I met Laurel co-founder Eric Zaarour for breakfast in Kensington, we were only a few miles from where the San Francisco legal tech company really got started.
Zaarour studied law in California and worked at a software company while at law school, but never went on to practise. In 2016, he started Laurel with his friend Ryan Alshak, then a practising lawyer whose frustration with recording his time inspired the original product.
Not long afterwards, the pair brought the idea to London after they won a place in Mishcon de Reya’s tech incubator. Zaarour moved into a flat in Bayswater while the team developed the product from inside the law firm.
The idea was to automate one of lawyers’ least-loved administrative tasks: time recording.
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As an initial step, Zaarour sat down with Mishcon lawyers to understand how they worked. He estimates he conducted 170 interviews in 30 days on the topic of timekeeping.
Perhaps critically for the quality of the feedback, the lawyers did not know he was the person designing the product.
“I would basically sit in this room, get shredded every single day, and then I would go home at night and I would work until two in the morning improving the designs,” he says.
Mishcon became Laurel’s first commercial customer. Its client base now includes law firms and other professional services businesses, while the company has grown to more than 200 employees and operates in around 70 countries.
The company has raised more than $150 million to date, including a $100 million Series C last year that valued it at more than $500 million.
But the original timesheet problem has also put Laurel at the centre of a bigger challenge for law firms: how to reconcile the billable hour with AI-driven efficiency.
Law firms are spending heavily on technology that promises to make lawyers more efficient while experimenting with fixed fees and other alternatives to hourly billing.
“A time and materials business where half of the work can be automated reduces the revenue,” he says. “Large law firms feel very much under threat.”
Large law firms feel very much under threat.
Moving away from hourly billing presents another problem. Firms need to know what their services actually cost to deliver before they can confidently put a fixed price on them.
Beyond timesheets
Laurel’s original product captures activity across the different systems lawyers use during their working day and reconstructs it into time entries.
Research, emails, meetings and drafting relating to the same piece of work can be grouped together, categorised to the relevant client and matter, and converted into a draft timesheet for the lawyer to review.
Law Firm | Trainee First Year | Trainee Second Year | Newly Qualified (NQ) |
|---|---|---|---|
| Addleshaw Goddard | £52,000 | £56,000 | £100,000 |
| Akin | £60,000 | £65,000 | £174,418 |
| A&O Shearman | £56,000 | £61,000 | £150,000 |
| Ashurst Perkins Coie | £57,000 | £62,000 | £140,000 |
| Baker McKenzie | £56,000 | £61,000 | £150,000 |
| Bird & Bird | £48,500 | £53,500 | £102,000 |
| Bristows | £48,000 | £52,000 | £95,000 |
| Bryan Cave Leighton Paisner | £53,000 | £58,000 | £125,000 |
| Burges Salmon | £49,500 | £51,500 | £76,000 |
| Charles Russell Speechlys | £52,000 | £55,000 | £93,000 |
| Cleary Gottlieb | £62,500 | £67,500 | £164,500 |
| Clifford Chance | £56,000 | £61,000 | £150,000 |
| Clyde & Co | £48,500 | £51,000 | £90,000 |
| CMS | £50,000 | £55,000 | £120,000 |
| Cooley | £55,000 | £60,000 | £157,000 |
| Davis Polk | £65,000 | £70,000 | £180,000 |
| Debevoise | £55,000 | £60,000 | £173,000 |
| Dechert | £55,000 | £61,000 | £165,000 |
| Dentons | £52,000 | £56,000 | £104,000 |
| DLA Piper | £55,000 | £60,000 | £140,000 |
| Eversheds Sutherland | £50,000 | £55,000 | £120,000 |
| Farrer & Co | £48,500 | £51,000 | £89,000 |
| Fieldfisher | £48,500 | £52,000 | £100,000 |
| Freshfields | £56,000 | £61,000 | £150,000 |
| Fried Frank | £55,000 | £60,000 | £175,000 |
| Gibson Dunn | £65,000 | £70,000 | £180,000 |
| Goodwin Procter | £55,000 | £60,000 | £175,000 |
| Gowling WLG | £48,500 | £53,500 | £108,000 |
| Herbert Smith Freehills Kramer | £56,000 | £61,000 | £145,000 |
| HFW | £52,000 | £56,000 | £103,500 |
| Hill Dickinson | £44,000 | £45,000 | £80,000 |
| Hogan Lovells | £56,000 | £61,000 | £145,000 |
| Irwin Mitchell | £43,500 | £45,500 | £78,000 |
| Jones Day | £60,000 | £68,000 | £170,000 |
| K&L Gates | £50,000 | £55,000 | £115,000 |
| Kennedys | £43,000 | £46,000 | £85,000 |
| King & Spalding | £62,000 | £67,000 | £175,000 |
| Kirkland & Ellis | £60,000 | £65,000 | £174,418 |
| Latham & Watkins | £60,000 | £65,000 | £174,418 |
| Linklaters | £56,000 | £61,000 | £150,000 |
| Macfarlanes | £60,000 | £65,000 | £150,000 |
| Mayer Brown | £55,000 | £60,000 | £150,000 |
| McDermott Will & Schulte | £65,000 | £70,000 | £174,418 |
| Milbank | £65,000 | £70,000 | £174,418 |
| Mills & Reeve | £46,800 | £47,000 | £84,000 |
| Mishcon de Reya | £52,500 | £57,500 | £110,000 |
| Morgan Lewis | £57,500 | £62,500 | £173,000 |
| Norton Rose Fulbright | £56,000 | £61,000 | £140,000 |
| Orrick | £60,000 | £65,000 | £170,000 |
| Osborne Clarke | £55,500 | £57,500 | £97,000 |
| Paul Hastings | £60,000 | £68,000 | £173,000 |
| Paul Weiss | £60,000 | £65,000 | £180,000 |
| Penningtons Manches Cooper | £48,000 | £50,000 | £83,000 |
| Pinsent Masons | £54,000 | £59,000 | £109,000 |
| Quinn Emanuel | n/a | n/a | £189,000 |
| Reed Smith | £55,000 | £60,000 | £135,000 |
| Ropes & Gray | £62,000 | £67,000 | £170,000 |
| RPC | £48,000 | £52,000 | £95,000 |
| Shoosmiths | £45,000 | £47,000 | £105,000 |
| Sidley Austin | £60,000 | £65,000 | £175,000 |
| Simmons & Simmons | £56,000 | £61,000 | £130,000 |
| Simpson Thacher | n/a | n/a | £178,000 |
| Skadden | £58,000 | £63,000 | £177,000 |
| Slaughter and May | £56,000 | £61,000 | £150,000 |
| Squire Patton Boggs | £50,000 | £55,000 | £110,000 |
| Stephenson Harwood | £50,000 | £55,000 | £105,000 |
| Sullivan & Cromwell | £65,000 | £70,000 | £177,000 |
| TLT | £44,000 | £47,500 | £85,000 |
| Travers Smith | £55,000 | £60,000 | £130,000 |
| Trowers & Hamlins | £50,000 | £54,000 | £90,000 |
| Vinson & Elkins | £60,000 | £65,000 | £173,077 |
| Watson Farley & Williams | £51,500 | £56,000 | £107,000 |
| Weightmans | £36,000 | £38,000 | £70,000 |
| Weil | £60,000 | £65,000 | £170,000 |
| White & Case | £62,000 | £67,000 | £175,000 |
| Willkie Farr & Gallagher | £60,000 | £65,000 | £180,000 |
| Winston Taylor | £56,000 | £61,000 | £125,000 |
| Withers | £47,000 | £52,000 | £95,000 |
| Womble Bond Dickinson | £43,000 | £45,000 | £83,000 |
Rank | Law Firm | Revenue | Profit per Equity Partner (PEP) |
|---|---|---|---|
| 1 | DLA Piper* | £3,130,000,000 | £2,500,000 |
| 2 | A&O Shearman | £2,900,000,000 | £2,000,000 |
| 3 | Clifford Chance | £2,400,000,000 | £2,100,000 |
| 4 | Hogan Lovells | £2,320,000,000 | £2,400,000 |
| 5 | Linklaters | £2,320,000,000 | £2,200,000 |
| 6 | Freshfields | £2,250,000,000 | Not disclosed |
| 7 | CMS** | £1,800,000,000 | Not disclosed |
| 8 | Norton Rose Fulbright* | £1,800,000,000 | Not disclosed |
| 9 | HSF Kramer | £1,360,000,000 | £1,400,000 |
| 10 | Ashurst | £1,030,000,000 | £1,390,000 |
| 11 | Clyde & Co | £854,000,000 | Not disclosed |
| 12 | Eversheds Sutherland | £769,000,000 | £1,400,000 |
| 13 | Pinsent Masons | £680,000,000 | £790,000 |
| 14 | Slaughter and May*** | £650,000,000 | Not disclosed |
| 15 | BCLP* | £640,000,000 | £790,000 |
| 16 | Simmons & Simmons | £615,000,000 | £1,120,000 |
| 17 | Bird & Bird** | £580,000,000 | £720,000 |
| 18 | Addleshaw Goddard | £550,000,000 | £1,000,000 |
| 19 | Taylor Wessing | £526,000,000 | £1,100,000 |
| 20 | Osborne Clarke** | £476,000,000 | £800,000 |
| 21 | DWF | £466,000,000 | Not disclosed |
| 22 | Womble Bond Dickinson | £450,000,000 | Not disclosed |
| 23 | Kennedys | £428,000,000 | Not disclosed |
| 24 | Fieldfisher | £385,000,000 | £1,000,000 |
| 25 | Macfarlanes | £371,000,000 | £3,100,000 |
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“You click one button, ‘Draft my day’ and it produces your whole timesheet,” Zaarour says.
The company is now building products around that information.
Its Signal product analyses work against individual matters to give firms a view of pricing and profitability. On fixed-fee work, it can track the amount of effort going into a matter against the agreed budget. On hourly matters, it can compare the time worked with the time ultimately recorded or released.
“The only way they can figure out how to reprice services is if they can see the full effort of the firm,” Zaarour says.
The only way they can figure out how to reprice services is if they can see the full effort of the firm.
That could become increasingly useful if firms start putting fixed prices on the more predictable elements of legal work while retaining hourly billing elsewhere.
“What I know is, by and large, customers want repeatable and predictable pricing,” he says.
Zaarour’s own role has evolved alongside the business. He describes himself as “titleless”, having worked across product, sales and customer-facing roles. “My job is to go where the company needs most help,” he says.
Law firms now have access to a growing range of AI models, agents and specialist legal AI products. At the same time, it can be difficult to identify which workflows across a firm are worth automating.
Zaarour thinks firms often make those decisions without enough visibility into how their lawyers actually spend their time.
“People are building pretty blindly,” he says.
Laurel can analyse activity across an organisation and identify work that could be suitable for automation. The broader idea is to connect three problems that law firms have historically treated separately: recording work, pricing it and deciding which parts of it technology should perform.
“When you automate your time and you create this ledger of work, you create a superset of data that allows you to capture the firm's full effort, reprice your services and then transform your work by seeing where low-leverage work is happening,” Zaarour says.
The case for specialists
As general-purpose AI platforms become increasingly capable themselves, it raises the question of what specialist technology companies can offer on top.
Tools such as ChatGPT or Claude can connect to individual systems, but he argues that they do not have the same comprehensive record of activity.
“A frontier lab doesn't have the desktop tracking that we do,” he says. “The multimodal collection, the comprehensive and accurate collection of your data, it's actually really difficult to build.”
The company announced a plugin for ChatGPT Enterprise earlier in September, allowing lawyers to query the work Laurel has captured from inside ChatGPT.
They can use the data for their own workflows, such as generating a weekly summary of where their time went or analysing which matters are consuming the most time.
So while timekeeping remains Laurel’s starting point, its next chapter is about persuading firms to use that information to change how they price and deliver their work.
| Firm | London office since | Known for in London |
|---|---|---|
| Akin | 1997 | Restructuring, funds |
| Baker McKenzie | 1961 | Finance, capital markets, TMT |
| Davis Polk | 1972 | Leveraged finance, corporate/M&A |
| Gibson Dunn | 1979 | Private equity, arbitration, energy, resources and infrastructure |
| Goodwin | 2008 | Private equity, funds, life sciences |
| Kirkland & Ellis | 1994 | Private equity, funds, restructuring |
| Latham & Watkins | 1990 | Finance, private equity, capital markets |
| McDermott Will & Schulte | 1998 | Finance, funds, healthcare |
| Milbank | 1979 | Finance, capital markets, energy, resources and infrastructure |
| Paul Hastings | 1997 | Leveraged finance, structured finance, infrastructure |
| Paul Weiss | 2001 | Private equity, leveraged finance |
| Quinn Emanuel | 2008 | Litigation |
| Sidley Austin | 1974 | Leveraged finance, capital markets, corporate/M&A |
| Simpson Thacher | 1978 | Leveraged finance, private equity, funds |
| Skadden | 1988 | Finance, corporate/M&A, arbitration |
| Sullivan & Cromwell | 1972 | Corporate/M&A, restructuring, capital markets |
| Weil | 1996 | Restructuring, private equity, leverage finance |
| White & Case | 1971 | Capital markets, arbitration, energy, resources and infrastructure |
| Law firm | Type | First-year salary |
|---|---|---|
| White & Case | US firm | £32,000 |
| Stephenson Harwood | International | £30,000 |
| A&O Shearman | Magic Circle | £28,000 |
| Charles Russell Speechlys | International | £28,000 |
| Freshfields | Magic Circle | £28,000 |
| Herbert Smith Freehills | Silver Circle | £28,000 |
| Hogan Lovells | International | £28,000 |
| Linklaters | Magic Circle | £28,000 |
| Mishcon de Reya | International | £28,000 |
| Norton Rose Fulbright | International | £28,000 |
Law Firm | Trainee First Year | Trainee Second Year | Newly Qualified (NQ) |
|---|---|---|---|
| A&O Shearman | £56,000 | £61,000 | £150,000 |
| Clifford Chance | £56,000 | £61,000 | £150,000 |
| Freshfields Bruckhaus Deringer | £56,000 | £61,000 | £150,000 |
| Linklaters | £56,000 | £61,000 | £150,000 |
| Slaughter and May | £56,000 | £61,000 | £150,000 |
Law Firm | Trainee First Year | Trainee Second Year | Newly Qualified (NQ) |
|---|---|---|---|
| A&O Shearman | £56,000 | £61,000 | £150,000 |
| Clifford Chance | £56,000 | £61,000 | £150,000 |
| Freshfields Bruckhaus Deringer | £56,000 | £61,000 | £150,000 |
| Linklaters | £56,000 | £61,000 | £150,000 |
| Slaughter and May | £56,000 | £61,000 | £150,000 |
Law Firm | Trainee First Year | Trainee Second Year | Newly Qualified (NQ) |
|---|---|---|---|
| Ashurst | £57,000 | £62,000 | £140,000 |
| Bryan Cave Leighton Paisner | £53,000 | £58,000 | £125,000 |
| Herbert Smith Freehills | £56,000 | £61,000 | £145,000 |
| Macfarlanes | £60,000 | £65,000 | £150,000 |
| Travers Smith | £55,000 | £60,000 | £130,000 |
| Firm | Merger year | Known for in London |
|---|---|---|
| BCLP | 2018 | Real estate, corporate/M&A, litigation |
| DLA Piper | 2005 | Corporate/M&A, real estate, energy, resources and infrastructure |
| Eversheds Sutherland | 2017 | Corporate/M&A, finance |
| Hogan Lovells | 2011 | Litigation, regulation, finance |
| Mayer Brown | 2002 | Finance, capital markets, real estate |
| Norton Rose Fulbright | 2013 | Energy, resources and infrastructure, insurance, finance |
| Reed Smith | 2007 | Shipping, finance, TMT |
| Squire Patton Boggs | 2011 | Corporate/M&A, pensions, TMT |
Law Firm | Trainee First Year | Trainee Second Year | Newly Qualified (NQ) |
|---|---|---|---|
| Ashurst | £57,000 | £62,000 | £140,000 |
| Bryan Cave Leighton Paisner | £53,000 | £58,000 | £125,000 |
| Herbert Smith Freehills Kramer | £56,000 | £61,000 | £145,000 |
| Macfarlanes | £60,000 | £65,000 | £150,000 |
| Travers Smith | £55,000 | £60,000 | £130,000 |
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