How to Cold Email for an Internship: 3 Real Templates
The internship you actually want probably isn't posted anywhere, and the application portals that do exist feel like black holes. Here's the workaround: a five-sentence email to the right person at a small company works surprisingly often, especially when the company has no formal intern program at all. This guide shows you exactly how to cold email for an internship: who to write to, what to send (three templates included), and how to follow up without being annoying.
Why cold emails work better at startups
Startups under about 50 people rarely have an intern pipeline: no campus recruiting team, no applicant tracking system, often no careers page worth the name. That's an open door. When a founder reads a sharp email from a student who clearly knows their product, they can invent a role on the spot, something nobody at a 5,000-person company can do. And founders read their own inboxes, so your email lands in front of the one person who can say yes.
The honest part: cold email is a low-reply-rate channel even when you do it well. Backlinko's analysis of 12 million outreach emails found that only about 8.5% get any reply at all. That's professional marketer outreach, not internship emails, so treat it as a rough floor rather than your forecast.
One scope note: emailing professors about research roles is a different playbook, and this post doesn't cover it.
Step 1: Pick 20 to 30 companies and find the right person
Twenty to thirty companies you genuinely find interesting, emailed over a few weeks, will beat 200 blasts, because the research that makes a cold email work doesn't scale to 200.
Aim for companies under roughly 50 people and email a human, never careers@ or info@. At a startup that means the founder or the lead of the team you'd join (the head of engineering, the first marketer, the design lead). Finding names is easy: the about page, blog post bylines, LinkedIn's "People" tab, or their product changelog. To build the list itself, browse internships on our feed and note which small companies keep appearing in your field.
For addresses, most startups use predictable patterns: first@company.com, firstlast@company.com, or first.last@company.com. Free email lookup tools exist if guessing fails, and a bounced email costs you nothing but a retry.
Step 2: Do five minutes of real research per company
Five focused minutes separate an email that gets read from one that gets archived. Do three things before writing:
- Use the product, or read one thing they shipped. Sign up, click around, break something. If the product is enterprise software you can't access, read their latest blog post or changelog instead.
- Find one specific thing you could genuinely help with. A bug you hit, a missing integration, a content gap, an unanswered question in their community. Small and concrete beats big and vague.
- Note anything adjacent you've built. A class project, a script, a redesign, a newsletter. This is the proof that backs your email.
If step 3 comes up empty, fix that first. Building proof of skills first takes a week or two and transforms every email you send afterward, because you'll have something real to point at instead of adjectives.
Step 3: Write the email
The anatomy is simple. A subject line specific enough to survive a phone-screen skim. Five sentences maximum. One clear ask: either a 15-minute call or the direct question, "would you be open to an intern this summer?" No attachment in the first email, but offer to send your resume. Assume a founder gives an unknown sender about 15 seconds; every sentence has to earn the next one.
Here are three templates you can send after swapping the bracketed slots. Notice what they don't contain: no "ambitious," no "passionate," no life story. They lead with proof.
Template 1: The "I used your product" email
Use this when you've used the company's product and noticed something specific; almost nobody who emails a founder has actually done that.
Subject: Noticed something in [product]: note from a student user
Hi [First name],
I've been using [product] for [specific task] since [month], and I
noticed [one specific observation, e.g. "the CSV export silently drops
rows with commas in the name field"]. I'm a [year] [major] student at
[school], and I recently built [one relevant thing, with a link].
Would you be open to taking on an intern this summer? I'd be happy to
start with something small and scoped, even [the thing you noticed].
I can send a one-page resume if that's useful.
[Your name]
Template 2: The "I built something relevant" email
Use this when you haven't used their product but you've built something in their problem space. The link does the persuading, so put it in the first sentence.
Subject: [Major] student at [school]: built a [project type] in your space
Hi [First name],
I recently built [project], a [one-line description], here's the link:
[URL]. It deals with the same problem [company] works on, [name the
specific overlap, e.g. "turning messy PDFs into clean tables"]. I'm a
[year] student at [school] looking for a summer internship, and yours
is the team I'd most want to learn this from. Would you be open to a
15-minute call? Happy to send a one-page resume if that helps.
[Your name]
Template 3: The follow-up
Send this about a week after the first email, in the same thread, and add one small new piece of value. Following up is expected, not rude: in the same Backlinko study, a single follow-up boosted replies by 65.8%.
Subject: reply in the same thread, so the original subject carries over.
Hi [First name],
Following up on my note from last week. Since then I [one small new
thing: "fixed the export issue in my own project and wrote up how", or
"sketched how an intern could ship [X] in a month", with a link].
Still very interested in interning at [company] this summer; would a
15-minute call sometime next week work?
[Your name]
What kills a cold email
These patterns get an otherwise fine email deleted in seconds:
- Desperation lines. "I'll do anything," "I really need this internship," "please give me a chance." They shift the email from offer to plea, and founders hire offers.
- Walls of text. If the email needs scrolling on a phone, it's dead. Five sentences.
- "Dear Sir/Madam" or "Dear Hiring Manager." At a 20-person startup, this announces you don't know who you're writing to.
- Mass-blast tells. A generic compliment ("I love what your company is doing in the space") fits every company, so it persuades none.
- Asking for "any opportunities." Vague asks create work for the reader. Name the role, the season, and the first thing you'd do.
- A resume attached cold. Mention your proof, link it, and offer the resume instead.
And a hard limit: two follow-ups maximum, spaced about a week apart. After that, silence is your answer for this season; move to the next company.
What to expect (the honest numbers)
Most of your emails will get no reply, even when every one is good. Large outreach studies put average reply rates under 10%, and those are professionals sending for a living. A realistic campaign looks like this: 20 to 30 tailored emails over two to three weeks, a handful of replies, and one or two real conversations. That's the math working: a single conversation with a founder who can create a role is the entire goal.
Equally important: no reply is almost always timing and inbox volume, not a verdict on you. The same email that gets ignored in a launch week gets a warm reply a month later. Send, follow up once or twice, move on, and keep the pipeline full.
Frequently asked questions
Do cold emails actually work for internships?
Yes, especially at startups and small companies with no formal intern program, where the reader can simply decide to take you on. Expect most emails to go unanswered even so. Your odds rise sharply when you email a named person with a specific observation or project, and fall to near zero with generic blasts.
Should I attach my resume to a cold email?
Not in the first email. An unsolicited attachment adds friction and pattern-matches to spam. Instead, link your proof (a project, a write-up, a portfolio) in the body and offer to send your resume. When they say yes, send a tight one-page resume that leads with the same proof you mentioned.
How long should a cold email for an internship be?
Five sentences or fewer. The test: a founder skimming on their phone should grasp who you are, what you've done, and what you're asking within 15 seconds. If a sentence doesn't help them say yes, cut it.
How do I follow up without being annoying?
Wait about a week, reply in the same thread, and keep it to two or three sentences. Add one small new thing (a fix you shipped, a short idea for them) rather than just asking again. Two follow-ups maximum, then move on.
What's a good subject line for an internship cold email?
Specific beats clever. Something like "CS student at school: built a project, interested in interning at company" tells the reader exactly what's inside. Avoid "Quick question" (salespeople wore it out), "Exploring opportunities" (vague), and anything that hides that you're a student, since being a student is part of why a founder opens it.
Do this today: pick five companies, spend five minutes researching the first one, and send one email using Template 1 or 2. Don't draft all twenty first or polish for an hour; the students who land internships this way hit send before they talk themselves out of it.