Looking for a job or internship but can’t find any openings? Don’t wait for an application to appear—prospecting letters (also called letters of inquiry) are a smart way to tap into the hidden job market. Whether you’re a student, recent graduate, or professional in transition, sending a prospecting letter can give you a real edge.

Unlike cover letters that respond to posted jobs, prospecting letters aim to spark interest and start a conversation—even when no positions are advertised. Here’s how to write one that gets noticed.

1. Start With Your Network

Before you write anything, evaluate your network. Do you have any LinkedIn connections at your target company? Are there alumni or mentors in your career services office who can make an introduction? A warm connection—even a second-degree one—can dramatically increase the chances of your letter being read and taken seriously.

2. Do Your Research

Never send a generic letter addressed “To Whom It May Concern.” Instead, research the company thoroughly. Identify the person most likely to review applications—usually someone in HR or a hiring manager—and address them directly.

Show genuine interest. Reference a company value, product, news mention, or initiative that resonates with you. Demonstrating that you’ve done your homework proves you’re serious—not just sending mass messages.

3. Be Authentic and Concise

Templates can help with structure, but avoid sounding robotic. Hiring managers can spot a copy-paste job instantly. Use your own voice, stay professional, and keep your tone enthusiastic but focused.

Also, keep it short—ideally under one page. Mention your relevant skills, why you’re interested in the company, and what value you can bring.

4. Choose the Right Delivery Method

Email is quick and convenient, especially if you’re contacting a recruiter or HR. It’s also easy to forward. But inboxes can be cluttered, so your message might be missed.

A printed letter, sent via mail, can stand out. It shows extra effort and attention to detail. Use high-quality paper and a clean format to leave a strong impression. Especially for smaller companies or creative roles, a physical letter can really make you memorable.

Conclusion

Sending a well-crafted prospecting letter is a proactive move that shows initiative and professionalism. For students and job seekers, it can open unexpected doors—even when no jobs are listed. By leveraging your network, doing solid research, sounding authentic, and choosing the right delivery method, you’ll increase your chances of landing that interview and starting your career on the right foot.