Professional References: Who to Ask and How to List Them

TL;DR — A professional reference is someone who has seen you work, such as a supervisor, manager, professor, or coworker, and agrees to tell an employer how you did. Ask permission before you list anyone, choose people who'll give a strong reference rather than a polite one, and send them your résumé and the job posting so they know what to stress. Three is the usual number. List them on a separate page with the same header as your résumé, giving each person's name, title, organization, phone, email, and how they know you. Leave "references available upon request" off your résumé; employers already know to ask.

A professional reference is a person an employer can contact to hear about your work: what you were responsible for, how well you did it, and whether they'd hire you again. The strongest references watched you do the job up close, like a direct supervisor, an internship manager, a professor whose class you did serious work in, or a coworker or client. Employers usually call them near the end of hiring, once the field is down to a few finalists, so a good reference can settle a close decision.

That timing is why your references deserve more thought than a list you scramble to fill the night an employer asks. Below: who counts and who doesn't, how many you need, exactly how to ask, how to format a reference page (with a full example), and what the person on the other end of the call will be asked.

What is a professional reference?

The University of Iowa's career center defines references as people "who can confirm your professional achievements, education, experience, skills, and character." A professional reference has seen that work firsthand. The U.S. Office of Personnel Management's reference-checking guide for federal hiring managers says a reference should have been in a position to directly observe the candidate and be of a professional nature, meaning current or former supervisors, coworkers, and professors, not friends or relatives.

Three different things get called references, and they aren't interchangeable:

Most employers want professional references. Hamline University's career center says to use professional or academic contacts such as professors and supervisors "unless a personal reference is requested." Letters are a useful extra rather than a substitute: CareerOneStop, the Department of Labor's career site, suggests bringing copies of letters of recommendation from former employers, and of written performance evaluations, to an interview if you have them.

Who should you ask to be a reference?

Pick people who saw your work recently and closely, and who'll talk about it with some enthusiasm. In rough order of strength:

• A direct supervisor or manager, current or former. CareerOneStop calls past employers "the most influential" references.
• An internship or co-op supervisor, who's often the closest thing a student has to a manager's view of their work.
• A professor or instructor who knows your work beyond a grade: a research supervisor, a capstone advisor, or the instructor of a small class where you did real projects.
• A coworker, client, or someone you trained, especially for roles where teamwork or client service is the job.
• A volunteer coordinator or club advisor who has watched you take responsibility for something.

Closeness beats rank. Hamline puts it plainly: "A direct supervisor is a better choice than the company's CEO." A senior name who barely remembers you gives a vague reference, while the shift lead who trained you can describe exactly how you handled a Saturday rush.

Leave off parents, partners, friends, and relatives. Iowa's career center lists them as people not to ask, since they're personal references rather than professional ones, and the University of Texas at Austin's Moody College career services gives the reason: hiring managers "will assume that family will say only nice things about you."

Then check for strength before you commit. Hamline advises asking each person whether they can give you a strong recommendation, and finding someone else if they seem hesitant. UT Austin's guide is blunter: "A lukewarm or mediocre reference will do you no good."

Who to ask if you don't have work experience

You still have references. They come from school, volunteering, and part-time work instead. Iowa's career center lists volunteer coordinators, advisors and mentors, professors and academic instructors, and academic advisors alongside work supervisors. CareerOneStop's list includes a teacher, a mentor, a religious or spiritual advisor, and a volunteer coordinator.

A manager from a part-time or summer job counts too, even if the work had nothing to do with the job you want. They can speak to the things every employer checks: whether you showed up, learned quickly, and handled customers or pressure well. A solid first list might be one professor, one part-time or volunteer supervisor, and one advisor or coach. For the rest of a first search, see how to get a job with no experience.

What if you don't want your current employer contacted?

You can say so. OPM's guide calls asking employers not to contact your current supervisor "a common request" and notes it's often an option within online staffing systems. The guide suggests the employer either ask to call your current supervisor once a tentative offer has been made, or ask you for other references. So say it plainly ("Please don't contact my current employer until we're at the offer stage") and offer a former manager, or a colleague who has since moved on, in that person's place.

How many references do you need?

Three, with two more ready. OPM's guide says candidates typically provide three references for the hiring manager to contact. Iowa's career center suggests identifying three to five people and giving three to five for each position, choosing whoever is most relevant to that job, and the University of Cincinnati also recommends three to five.

If a posting or an application form names a number, give exactly that. Keeping a bench of five means you can choose the three who fit each job best, and you're never stuck when someone is traveling or has changed phone numbers.

How do you ask someone to be a reference?

Ask before you list anyone, every time, including people who served as a reference in a past search. UT Austin's guide is direct: "Never list a person as a reference without getting their permission first." A short call or meeting is best (Iowa prefers a meeting), but an email works, especially for someone you haven't spoken to in a while.

Subject: Reference request from [Your Name]

Hi [Name],

I hope you're doing well. I'm applying for [type of role] positions,
starting with [Role] at [Company], and I'd like to list you as a
reference. You saw my work up close when I was [your role] at
[Organization], especially [one specific project or responsibility].

Would you feel comfortable giving me a strong reference? If so, I'll
send my résumé and the job description, and I'll let you know before
anyone is likely to call. If the timing doesn't work, I completely
understand.

Thank you for considering it,
[Your Name]
[Phone] · [Email]

Asking for a strong reference is deliberate. It gives the person a graceful way to decline, and a decline now is far better than a hesitant call later. For a professor, add which class or semester you took with them and the work you did, since they've taught many students since. While you're asking, get their preferred contact details, as Iowa recommends, and confirm their current job title so your reference page is accurate.

How to brief a reference after they say yes

A reference who knows the job can connect your work to it; one who doesn't will fall back on "they were great." Iowa suggests giving references a copy of your résumé and cover letter, and UT Austin suggests naming the specific qualities and skills you'd like them to mention. Send:

• Your current résumé, so their dates and details match yours.
• The job posting, or a two-line description of the role.
• Two or three things to speak to, each tied to something the posting asks for, and the project or situation where they saw it.
• A heads-up when a call is likely. Iowa recommends telling your references when you apply or interview, and UT Austin says to notify them immediately after the interview.

Subject: Heads-up: a call from [Company] this week

Hi [Name],

Thank you again for agreeing to be a reference. I just finished final
interviews for the [Role] position at [Company], and they've asked for
references, so [Interviewer name, title] may call you this week.

The role centers on [two requirements from the posting]. The most
relevant things you saw were [specific project] and [specific
responsibility]. I've attached my résumé and the job description.

Thanks so much,
[Your Name]

How do you list references?

On a separate page, never on the résumé itself. The University of Cincinnati says references "should be listed on a single page separate from your resume, cover letter and other application materials." Format it like this:

• The header is your name and contact details, copied from the top of your résumé so the two documents match. Iowa and Hamline both recommend it.
• The title is "References," styled like your résumé's section headings.
• Each reference gets its full name, job title, organization, phone number, email address, and the relationship: how they know you and for how long. Hamline's format for that last line is short, like "Supervisor, 2 years."
• The order is by relevance to this job. Iowa says to list references "in order of importance for the specific position."

Iowa and Hamline also include each reference's work address. It's optional when you have a current phone number and email; OPM notes that most reference checks happen by phone.

Reference page example

JORDAN RIVERA
Columbus, OH · [email protected] · (555) 555-0187 · linkedin.com/in/jordanrivera

REFERENCES

Dana Whitfield
Operations Manager
Riverside Community Clinic
(555) 555-0112 · [email protected]
Relationship: Direct supervisor in my front-desk coordinator role, 2024 – present

Dr. Samuel Okafor
Associate Professor of Public Health
Northfield State University
(555) 555-0135 · [email protected]
Relationship: Capstone advisor and instructor for two courses, 2023 – 2025

Priya Natarajan
Volunteer Program Coordinator
Eastside Food Pantry
(555) 555-0158 · [email protected]
Relationship: Supervised my Saturday distribution shifts, 2022 – 2025

Save it as a PDF with your name in the file name, and send it only when an employer asks. If an online application has reference fields, type the same details in, word for word. If you're interviewing in person and haven't sent the list yet, bring a printed copy, which Hamline suggests and which belongs on what to bring to an interview anyway.

Should you put "references available upon request" on a résumé?

No. The University of Cincinnati's career guidance says the phrase "used to be a common practice, but it's no longer necessary," because employers know they can request references. Leave the reference names off the résumé too; Hamline's advice is not to send references with your résumé but to "wait until asked to do so." The one exception is a posting that asks for references with the application. Send your separate reference page then.

That line is better spent on a project, a skill, or a result. If you're still building the document, how to write a résumé goes section by section, what a résumé is covers the basics, and Olive's résumé builder can turn a conversation about your work into a first draft.

When do employers check references?

Usually late. OPM's overview of reference checking says it's "usually conducted near the end of the selection process after the field of applicants has been narrowed to only a few competitors," and that most reference checks are done by phone. Colorado College's career center notes that some employers contact references as a final step, potentially even after your final interview.

So when a recruiter asks for your references after an interview, treat it as a signal to call your references that day. Some applications ask for references on the form itself, before any interview; that's paperwork, and a call may not follow until much later, if at all.

A reference check isn't a background check, either. When an employer uses a background reporting company, the Federal Trade Commission says it must get your written permission before running the check. For the rest of what happens between applying and an offer, see how to apply for a job.

What will an employer ask your references?

Mostly the same few things. OPM's guide lists sample questions for hiring managers, and they map closely to an interview:

• In what capacity did you work with the candidate?
• What duties did they perform?
• What were their strengths, and where could they improve?
• Would you recommend them for this position, and why or why not?
• How well did they know the work and manage the workload?
• How did they get along with coworkers, people they supervised, and supervisors?
• Are they eligible for rehire?

CareerOneStop adds that an employer may ask for your reference's occupation, how long you've known each other, and the nature of your relationship. OPM estimates a structured phone reference check takes about 20 minutes per contact.

Two practical consequences. First, a reference who hasn't thought about your strengths and weak spots will improvise, so the briefing above matters. Second, some organizations limit what they share about former employees. OPM's guide notes that some company policies don't allow releasing a previous employee's information, and UT Austin points out that a former coworker may be prohibited by their company from serving as a reference at all. Ask each person whether they're free to speak for you, and choose someone else if they aren't.

How do you keep your references on your side?

References are a relationship, not a list. A few habits keep them willing:

• Thank them every time, whether or not you get the job. Hamline, UT Austin, and CareerOneStop all recommend a thank-you note to each reference.
• Tell them how it ended. People who vouched for you want to know whether you got the job, and a short update makes the next ask easier.
• Keep their details current. Titles, employers, and phone numbers change. Check them at the start of every search, and ask permission again rather than assuming a yes from two years ago.
• Stay in touch between searches. A note when you finish a big project or change jobs keeps you from becoming a stranger who only writes when you need something.

The thank-you you send a reference works like the one after an interview, and the thank-you email guide has templates you can adapt. When an offer does come, evaluating a job offer covers what to check before you say yes.

Before your next application, pick your three, send the first ask today, and fill in the reference page above. If you can't name three people who'd give you a strong reference, that's the gap to close first: one more conversation with a professor or a past manager is worth more than one more application.

Sources

• University of Iowa Pomerantz Career Center — References
• U.S. Office of Personnel Management — Reference Checking and the Reference Checking guide (PDF)
• Hamline University Career Development Center — References (PDF)
• University of Texas at Austin, Moody College Career Services — Asking for a Reference (PDF)
• University of Cincinnati — References on a resume: Everything you need to know
• CareerOneStop, sponsored by the U.S. Department of Labor — References
• Colorado College Career Center — Final Steps
• Federal Trade Commission — Employer Background Checks and Your Rights