L.E.K. Cover Letter: Template, Annotated Example & What LEK Screens For (2026)

An L.E.K. cover letter is a one-page sector argument, not a summary of your resume. L.E.K. Consulting was founded in London in 1983 by three former Bain consultants and now runs roughly 21 offices with more than 1,600 professionals, with unusually deep concentration in life sciences, healthcare, consumer, industrials and private equity commercial due diligence. Two structural facts shape the letter. First, L.E.K. states that candidates can submit an application to only one of its global offices per year, so the office named in your letter is a one-shot decision. Second, the firm describes its process as several rounds mixing experiential and case interviews, with both quantitative and strategic cases possible, which means every claim the letter makes gets tested within weeks. One published estimate puts the share of applicants who reach an interview below 30%, so the document has to do real filtering work in your favour.

The sections below cover what recruiters scan for, the paragraph-by-paragraph structure, a complete annotated example, the mistakes that are specific to this firm rather than to consulting generally, and how the letter should differ from the one you send elsewhere in the same cycle. For the firm-agnostic foundations, start with the consulting cover letter guide. For what happens after the letter lands, the L.E.K. case interview guide covers the format.

Does L.E.K. actually read the cover letter?

The honest answer, and the one most guides avoid: the resume is read first and it does most of the screening. A letter almost never rescues a resume that fails the screen. What a letter does is break ties, explain a non-obvious background, and answer the sector question that a resume cannot answer on its own.

That reframes the job. If your resume already proves analytical work, the letter should not restate it. It should say which of L.E.K.'s problems you want to work on and why your evidence points there. Get the resume right first with the consulting resume guide and the action-verb and keyword reference, then write the letter against what the resume already proves.

What does an L.E.K. recruiter scan for?

L.E.K.'s published careers material names three things the interview process is designed to evaluate: how you think and respond to business issues relevant to the firm's work, what skills you would bring, and your motivation for management consulting generally and for L.E.K. specifically. Recruiting guidance built around the firm adds four candidate qualities: analytical ability, demonstrated leadership, a collaborative approach, and intellectual curiosity.

Sources for this table: L.E.K. Careers: Apply; PrepLounge L.E.K. firm profile; Career in Consulting: L.E.K. recruitment process.

How long should the letter be, and how should it be laid out?

One page. Published L.E.K. cover letter guidance converges on roughly 300 to 400 words in five or six short paragraphs. Use a standard business letter layout: your contact block, the date, the office address line, a salutation, the body, and a sign-off. Keep the font consistent with your resume so the two documents read as one application.

The prioritisation signal matters more here than the format. L.E.K.'s work is full of exercises where a team has to compress a large evidence base into a short answer, and the second-round written case at the firm is reported as a 15 to 20 page pack with about ten minutes of reading time before three high-level questions. A candidate who cannot hold a motivation argument to one page is telling the recruiter something about that skill before the process starts.

Who do you address an L.E.K. cover letter to?

Address it to the recruiting team of one named office. L.E.K.'s own application guidance states that when applying for a job opening, candidates can submit an application to only one of its global offices per year. That single rule changes the calculus more than any stylistic choice in this article.

Three consequences follow:

• Pick the office before you write. The regional argument is the paragraph you cannot fake, so the letter should be drafted against a specific city.
• Do not hedge. "Open to any European office" reads as a hedge in a process where you only get one application, and it wastes the paragraph.
• Make the regional case concrete. A prior internship in that market, a language, a sector cluster in that city, or family or study ties are all real. Enthusiasm for the city is not.

If you do not have a named contact, "Dear L.E.K. Consulting Recruiting Team" plus the office name is fine. Do not invent a partner's name from a search result.

The L.E.K. cover letter structure, paragraph by paragraph

Paragraph 1: where you are and what you are asking for

Two sentences. Name the role, name the office, and give the single strongest fact about your background. Do not open with "I am writing to apply for." State the position, then immediately give the recruiter a reason to keep reading.

Paragraph 2: why consulting, in evidence rather than adjectives

One short paragraph. The failure mode is abstract: "I want to work on challenging problems." Replace it with the moment you did consulting-shaped work and liked it, which is usually a project where you had to reach a recommendation on incomplete data. The why consulting answer guide has the fuller version of this argument for interviews, and the same evidence should appear in both places.

Paragraph 3: why L.E.K., and the substitution test

Write the paragraph, then swap "L.E.K." for "Bain" and read it again. If it still works, it is not a Why L.E.K. paragraph. Genuinely firm-specific angles are covered in the next section.

Paragraphs 4 and 5: two proofs, one number each

Two stories in the XYZ shape: accomplished X, measured by Y, by doing Z. One should show analysis, ideally something that looks like sizing a market or testing a commercial assumption. One should show leadership or ownership, meaning a decision you made rather than a role you held. Both numbers should already be visible on the resume, so the interviewer sees one consistent story.

Paragraph 6: close with a request

One sentence naming what you want next. No restatement of the letter, no thanking them for their time in three sentences.

Annotated L.E.K. cover letter example

This example is fictional and illustrative. The candidate, the employer, and every number in it are invented to show the shape. Replace all of them with your own evidence, and never carry an invented figure into a real application.

The candidate: a biotech commercial analyst with three years of experience, targeting the L.E.K. Boston office and the life sciences practice.

---

Dear L.E.K. Consulting Recruiting Team, Boston,

I am applying for the Associate position in your Boston office. For the past three years I have built commercial forecasts for early-stage oncology assets at a 180-person biotech, which means I have spent most of my working life answering the question L.E.K. gets paid to answer: is this asset worth what someone is about to pay for it?

The work that pushed me toward consulting was a licensing decision in 2025. Our team had eleven weeks to recommend for or against an in-licensing deal on a second-line therapy, with no head-to-head trial data and a competitor readout expected mid-process. I built the addressable-population model, ran the payer-coverage scenarios, and recommended against the deal at the proposed terms. The board renegotiated and closed at 22% below the original ask. I liked the shape of that problem more than anything else I have done: a real decision, a hard deadline, and evidence that was never going to be complete.

L.E.K. is where I want to do more of it because commercial due diligence in life sciences is a core part of the firm's work rather than one practice among many, and the Boston office sits inside the therapeutics cluster I already know. I have read the firm's published work on biopharma launch benchmarks, and the questions it asks are the questions I have been answering with a fraction of the resources.

Two things I would bring. First, sector fluency that does not need a ramp: I can read a trial design, a payer formulary tier, and a launch curve without an explainer. Second, comfort owning an unpopular recommendation. On the licensing call I was the only analyst arguing against the deal for four weeks, and I rebuilt the model twice under challenge rather than softening the conclusion.

I would welcome the chance to discuss the Associate role and the Boston life sciences team.

---

What this letter does that a generic one does not

• Names one office and one practice. Given the one-application-per-year rule, that specificity is not a stylistic choice, it is the whole strategy.
• The consulting motivation is a story, not an adjective. Eleven weeks, no head-to-head data, a live competitor readout. That is a consulting problem described by someone who has been inside one.
• One number does the work. 22% below the original ask is a decision that changed, not effort that was expended.
• The Why L.E.K. paragraph fails the substitution test on purpose. Swap in another firm name and the sentence about commercial due diligence being core rather than peripheral stops being true in the same way.
• The leadership proof is a position held under pressure, not a title. "The only analyst arguing against the deal for four weeks" is leadership evidence a recruiter can picture.
• It closes in one sentence and never restates the resume.

Read the L.E.K. behavioral interview questions guide next, because the experiential interview will ask for the same stories out loud, and inconsistency between the written and spoken versions is a real rejection reason.

How do you write a Why L.E.K. paragraph that survives the substitution test?

These are the angles that are actually specific to the firm rather than to consulting:

• Commercial due diligence as a core workstream. L.E.K. is best known for diligence and acquisition strategy work for private equity clients. If that is your target, say so and connect it to evidence. The private equity case interview guide and the due diligence framework cover what that work actually asks of you.
• Sector depth over generalist rotation. Life sciences and healthcare are the clearest example. A candidate with a clinical, biotech, or medtech background has a firm-specific argument at L.E.K. that they do not have at a pure generalist firm. The life sciences case interview guide is the matching preparation.
• The one-office model itself. Applying to a single office per year signals commitment, and saying plainly why that office is worth your single application is an argument other firms do not give you the chance to make.
• Evidence-heavy, quantitative work. L.E.K. describes its interviews as including both quantitative and strategic cases. If your background is data-heavy, that is a fit argument rather than a hedge.

What does not survive the test: the firm's global footprint, its intelligent colleagues, its collaborative culture, and its client impact. Every one of those sentences is true of every competitor and therefore carries no information.

What the letter promises, the process verifies

A cover letter is a set of claims with a short shelf life. Published accounts of the L.E.K. process describe an HR screen of about twenty minutes, an online assessment, an experiential interview running roughly twenty to forty minutes, and case interviews, with something like two weeks between steps and a total elapsed time of two to three months. First-round cases are commonly reported as two thirty-minute interviews, with the second round adding two sixty-minute cases and a written case.

The practical consequence: if the letter claims quantitative fluency, the numerical screen and the data-heavy cases will find out. Do not write a claim you have not rehearsed.

The same logic applies to the sector claim. If the letter says life sciences, you should be able to talk about one current dynamic in that market without preparation. The L.E.K. firm guide covers the capability and industry map to draw from.

Mistakes that are specific to L.E.K.

Writing a firm-agnostic letter into a one-application-per-year process

At firms where you can apply to several offices, a slightly generic letter costs you one shot out of three. At L.E.K. it costs you the cycle. This is the single highest-cost mistake on the list.

No sector answer

A letter that says "strategy consulting" and nothing more is missing the one thing this firm sorts on. Even if you are genuinely open, pick the sector your evidence points at and write to it. You are not signing a contract, you are giving the recruiter a reason to route you.

Claiming private equity interest with nothing behind it

Because commercial due diligence is the firm's best known workstream, PE has become the default thing candidates claim. Recruiters and interviewers see it constantly, and the follow-up question is easy: what have you read, and what would you want to test in a diligence. If the answer is thin, the claim damages you more than silence would.

Restating the resume in paragraph form

The most common consulting cover letter failure generally, and it wastes the only document where you can add context. If a sentence is already a resume bullet, cut it or replace it with the reasoning behind the bullet.

Overclaiming a process you have not confirmed

Do not write that you are ready for "the written case in round two" as though you have been told. Rounds and formats vary by office and level. Your invitation is the authority, and the consulting application deadlines guide covers timing rather than format.

How is an L.E.K. cover letter different from an MBB or Big 4 letter?

The practical version of that table: the same base letter can serve two or three of these firms, but the third paragraph has to be rewritten every time, and at L.E.K. the office line has to be rewritten with it.

Should you send a video cover letter to L.E.K.?

Only when the application asks for one. Some firms and some graduate schemes use asynchronous video as a screening stage, and L.E.K.'s published guidance does not describe a universal video requirement. If your process includes one, treat it as a spoken version of the same argument, not a performance, and prepare it with the video cover letter guide. If it does not, sending an unsolicited video reads as not following instructions, which is a poor first signal for a firm that runs a structured process.

Your L.E.K. application checklist

Execution checklist

• ✓

  Choose one office and confirm the live posting. L.E.K. states candidates may apply to only one global office per year, so this decision is irreversible for the cycle

• ✓

  Fix the resume before drafting the letter. The resume is read first and does most of the screening; grade it once with the consulting resume grader rather than after a rejection

• ✓

  Name one sector and one reason your evidence points there. Sector logic is the thing this firm sorts on, and a broad-interest letter answers nothing

• ✓

  Run the substitution test on the Why L.E.K. paragraph. Swap in a competitor's name; if the paragraph still reads correctly, it carries no information

• ✓

  Cut the letter to one page, roughly 300 to 400 words. Prioritisation is a demonstrated skill here, not a formatting preference

• ✓

  Check both proof paragraphs against the resume. The experiential interview will ask for these stories out loud, and inconsistency is a rejection reason

• ✓

  Rehearse one quantitative rep before you claim quantitative fluency. The numerical screen and the data-heavy cases verify the claim within weeks, using the free drills

• ✓

  Prepare one current dynamic in your named sector. The first interviewer question after a sector claim is usually what you have read recently

• ✓

  Run one full graded case once the letter is submitted. The application window is the cheapest time to find your weakest case skill, in the case library

Once the application is out, the useful work shifts from documents to reps. Work the format in the L.E.K. case interview guide, and rehearse the spoken version of your two proof stories against follow-up questions in the behavioral simulator.

Pair the letter with the L.E.K. resume guide for the page it introduces, and the L.E.K. salary breakdown for what the offer looks like.

Sources (checked July 31, 2026)

• L.E.K. Careers: Apply
• L.E.K. Consulting firm profile and interview process, PrepLounge
• The L.E.K. Consulting recruitment process, Career in Consulting
• L.E.K. cover letter step-by-step guide, Hacking the Case Interview
• L.E.K. interview cover letter, Caseinterview.com
• L.E.K. Consulting MBA internship cover letter sample, Leland