Letter of Interest: How to Approach a Company With No Job Posted
By Mustafa Tarabya, founder of CVBooster · Published · Updated
7 min read
A letter of interest goes to an employer who is not hiring, at least not publicly. No posting, no reference number, no closing date. You have decided this is a company you want to work for, and you are writing to say so before a vacancy exists.
That one fact changes the whole document. A cover letter answers a question the employer already asked. A letter of interest has to earn the question first. Nobody is waiting for it and nobody is scoring it. Everything below follows from that.
Letter of interest, letter of intent, prospecting letter
People search these terms interchangeably and do not always mean the same thing, so settle it before you write a word.
- Letter of interest: the standard American term. You write to a company with no advertised opening and explain what you would bring.
- Prospecting letter: the same document under an older name, still used by career services and recruiters. A synonym.
- Speculative application: the British and Irish term for it, usually the letter plus a CV.
- Letter of intent for a job: a synonym again in hiring, with a more formal tone. Common around academic, government and internal applications.
One warning on that last one. Outside hiring, a letter of intent is a legal instrument: the preliminary agreement signed before a merger or a commercial lease, and parts of it can bind. Different document, nothing to do with your job hunt.
Some employers also use the phrase for internal promotions or a role announced but not yet posted. A job exists there, so what you need is a cover letter, and our guide covers that. This article is the harder case: nobody asked you for anything.
When this works, and when it is a waste of your evening
This is not a general-purpose job search tool. It works in specific conditions, so the first decision is whether a company earns a letter.
- Small and mid-size employers. Under a few hundred people, the person reading your email is often the one who can create the job.
- Niche or hard-to-fill skills. If few people can do the thing, your letter reads as a solution rather than an interruption.
- A genuine connection. You used their product for years, you supplied them, someone there knows you.
- Fields where hiring is continuous: care, hospitality, construction, logistics, agencies, trades, education. Those employers hire when someone good appears.
- A company that just raised money, opened a location or won a contract. Roles follow that news, usually before the postings.
It rarely works as a mass mailing to large corporates. Where there is a formal requisition process, nobody can hire you without approved headcount and a posting, so even a recruiter who likes the letter has to tell you to apply later. It fails just as reliably when it is a cover letter with the title deleted.
The structure, and what each part has to do
Keep it to roughly 250 to 350 words. Shorter than a cover letter, because you are asking for attention nobody promised you. Four moves, in this order.
Open without a job title to lean on
A cover letter opens by naming the role. You cannot. Your opening has to say who you are, legibly, and give a reason this email exists today rather than at random. That reason is a trigger: company news, a mutual contact, a problem you noticed.
So: one sentence on what you do with a result attached, then one naming the trigger. "I saw you opened a second warehouse in Reno last month" is a reason. "I have long admired your company" is not, since it proves nothing.
Establish why this company and not the other forty
This is where speculative letters collapse. The reader assumes you sent the same email to everyone, and is usually right. One checkable detail defeats that: a product decision, a market they entered, something a person there published, a mutual contact by name.
Then say what the detail means for the work, because observation alone reads as flattery. "You produce a weekly customer podcast in-house" is an observation. Adding "which is the setup I ran for two years" turns it into a reason to keep reading.
Propose something concrete
A cover letter argues you fit a defined job. This one has to define the job, at least loosely, before it can argue anything. Name a piece of work: a function you would own, a problem you would take off someone's plate, a gap visible from outside.
Watch the tone. You are proposing, not diagnosing. "Your marketing is a mess" does not get answered even when accurate. "Companies at your stage usually hit a point where tickets outgrow one inbox, and that is the transition I have run twice" says it without insulting anyone.
Close with an ask small enough to say yes to
"I look forward to hearing from you" asks for nothing, so nothing is what it returns. Ask for something small: twenty minutes on a call, a pointer to the right person, or whether it is worth staying in touch. Offer an easy exit too. "I would rather be on your list than send this twice" is an answer a reader can type in seconds.
Tip: Write the proposal paragraph first. It is the only part that cannot be recycled, and if you cannot write it for a company, drop the company.
A full letter, written for one company
The writer coordinates operations at a logistics firm. The target is a sixty-person food importer that recently took over a distribution center. Nothing is posted, and it goes to the operations director by name.
Hi Dana,
I read that Marla Foods took over the Fife distribution center in June and is bringing warehousing in-house. That is the reason for this email.
I coordinate inbound operations for a 40-person logistics company in Tacoma. Last year I ran our move off a third-party warehouse and into our own site: 900 SKUs, two temperature zones, a four-week cutover, no missed delivery windows. The part I got good at is the boring part, rebuilding receiving and putaway rules so the picking team is not fixing them later.
Bringing warehousing in-house usually means somebody has to own inventory accuracy through the first six months, and it is usually that person's third priority. That is the work I would want to do for you: receiving and cycle count processes, the WMS configuration nobody has time to finish, training the floor team. I have done it once, which mostly means I know where it goes wrong.
I am not assuming you have a job open. If you are hiring for Fife this year I would like to be considered, and if it is too early, twenty minutes on a call would still be worth my time and hopefully yours. Resume attached either way.
Best, Ray Okonkwo, 253 555 0148
What each paragraph is doing
The first line is the trigger. Dated, public, checkable, and it explains why this email arrived today. Anyone could write it. Almost nobody does, which is why it works.
The second is credentials and proof at once, and note what it refuses to do: summarize a career. One project, chosen because it matches what the reader is living through. The numbers survive a follow-up question, which is the only reason to use numbers.
The third is the proposal, the paragraph a cover letter never has to write. It names work the reader recognizes, frames it as the consequence of their own decision rather than a failure, then says what the writer would own. "I know where it goes wrong" carries experience and humility at once.
The last one lowers the pressure and the ask, saying out loud what both people are thinking. The letter runs a little over 200 words and could not be pasted into an email to a different importer. That is the real standard.
Tip: Delete every sentence that would still hold up after a find and replace of the company name. In a cover letter that strips out filler. Here, if the whole letter fails it, you have nothing to send.
Who to actually send it to
Send it to the person who would manage you, or who owns the function you would join. Not a general careers inbox, and usually not HR, which screens against open roles by design. Under thirty people, write to the founder.
- The company team or about page. Small companies list names, titles and often direct emails.
- LinkedIn, searching the company plus the function: head of operations, marketing lead, clinic manager, whoever runs your thing.
- Conference talks, podcasts and trade press. People who speak publicly about their work are easy to name and reach.
- The email pattern, usually visible in one public address on the site. Verify it rather than firing off three guesses.
- Anyone you already know there. An internal forward beats a cold email by a distance that is not close.
If no name is findable, take the hint. That company probably has the formal process this letter cannot get past.
Subject line, resume, and the one follow-up
The subject line decides whether any of the writing matters. Be concrete, and skip "Job application" and "Seeking opportunities", both accurate and both instantly deletable. These get opened:
- Fife distribution center, inbound operations
- Referred by Kim Alvarez: warehouse operations
- Pediatric OT relocating to Boise in September
- Two years of in-house podcast production, if you ever need it
Attach the resume, mention it in one clause, and do not describe it: the letter is the argument, the resume is the evidence file. Put the letter in the email body, never as a second attachment. A cold email with two files and no text is the easiest thing in any inbox to delete.
Follow up once, after seven to ten working days, in three sentences on the same thread so the original sits underneath. Add something rather than repeat yourself: a piece of news, or a narrower ask. Then stop. A second chase converts almost nobody.
Tip: Keep a log: company, person, date sent, trigger used. Six weeks later you will not remember, and writing to the same person twice with two different pitches is worse than not writing.
What a good result actually looks like
Response rates on speculative letters are low even when the letter is genuinely good. Most get no reply, and anyone promising otherwise is selling something. The silence is not a verdict on your writing. It is what happens when you write to people who did not ask for mail.
So judge it by the right outcome. The realistic wins are a conversation, a referral to someone who is hiring, or a reply saying check back in the fall. Those compound, because next time a job opens, one person there knows who you are.
Which sets the strategy: ten researched letters over a month, not a hundred in a weekend, run alongside applications to advertised roles rather than instead of them. This is the slow lane, and it pays out on a schedule you do not control.
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