Recommendation letter guide · Sample letter and email · Updated Nov 2026

Letter of recommendation for a Growth Manager

The short answer

The best growth recommendation comes from the person who held you to a number: your head of growth, founder or business head, or a product or data partner you ran experiments with. It should prove three things with specific stories: you moved a metric, you measured it honestly, and product, design and data teams liked working with you.

See the sample letter Full Growth interview guide

Who should write it

Pick the person who saw your work most closely, not the one with the biggest title.

Your manager: head of growth, founder or business head

They set your target and can confirm the number you moved, which is what growth roles hire for.

A product manager, engineer or data scientist you ran tests with

Vouches for your experiment design and honesty with results, and for how you work across teams.

A marketing, sales or finance partner

Shows you think in unit economics and that other teams trusted your numbers.

What a Growth letter must prove

Each quality needs a specific story. Here is the kind of line that proves it.

Moves a number and proves it

“Sneha lifted D30 retention from 18% to 24% with a rebuilt first-week flow, tested against the old one.”

Measures honestly

“She set sample sizes before every test and logged the losses as carefully as the wins.”

Makes good bets with limited resources

“When engineering had no capacity, she ran lifecycle and creative tests that needed no code.”

Works well with product, design and data

“She brought the funnel data and a ranked list of problems, and agreed the success metric with design before work began.”

Structure: one page, five short parts

1OpeningWho you are, your role, how long you worked with the candidate and in what capacity, and the role they are applying for.
2Headline claimOne sentence that sums up the candidate, e.g. “the most rigorous growth person I have managed”. Only if true.
3Two specific storiesEach story: the metric and baseline, the test or channel change, and the measured result.
4How they work with othersOne short paragraph on cross-functional work, honesty about failed tests, and judgement under pressure.
5CloseA clear recommendation and an offer to talk, with your contact details.

Sample letter of recommendation

From a head of growth, for a job application (fictional people and company)

I am Arjun Nair, Head of Growth at Kiranakart (fictional), a grocery delivery app. Sneha Kulkarni has reported to me for three years as the growth manager for activation and retention. I am glad to recommend her for a Growth Manager role.

Sneha is the most rigorous growth person I have managed. When she joined, our new customers rarely came back after the first order. She studied the users who did stay, found that a second order in the first week was the clearest signal, and rebuilt our first-week WhatsApp and email sequence around it. She tested it against the old flow with a proper control, and D30 retention rose from 18% to 24%.

She is just as careful with spend. She rebuilt our Meta campaigns around three audience tests and two dozen creative variants, and cost per first order fell from ₹410 to ₹265 in ten weeks with no increase in budget.

Product and design like working with her because she brings data and a ranked list of problems, not finished solutions, and she agrees the success metric before anyone builds. She also reports losses plainly; her test log is the one the whole company now uses.

I recommend Sneha without reservation. I am happy to talk to you about her work.

Arjun Nair, Head of Growth, Kiranakart (fictional) · arjun@example.com

All people, companies and numbers in this sample are fictional. Your recommender should write in their own words.

How to ask, and what to send

Make it easy to say yes: a short email plus a one-page brief.

Email to your recommender

Subject: Would you be a reference for a growth role?

Hi [Name], I am applying for Growth Manager roles, starting with [Company]. You saw my work on [metric or project] more closely than anyone, so I would be grateful if you could write a short recommendation or take a reference call. To make it easy, I have attached a one-page brief: the role, three experiments you might mention, and the before-and-after numbers. Please change anything that does not match your memory, and tell me if any number should stay private. The deadline is [date]. If now is a bad time, no problem at all. Thank you, [Your name]

The brief to attach

The job description and why you want the role (two lines).
Three experiments or channel changes they saw, each with the metric, the baseline, what you changed and the result.
One test that lost and what it taught the team, so they can speak to your honesty.
Which numbers are safe to share outside the company, and which to give as percentages only.
The deadline, the format (letter, form or call) and where to send it.

Job, MBA, promotion or referral

Same stories, different emphasis.

Job application or reference call

Keep it to one page and lead with the metric moved and how it was measured. Many companies prefer a 15-minute call, so ask which they want.

MBA or master’s application

Add growth and potential: how the candidate’s scope grew, how they handled a failed bet, and their leadership of people or projects. Follow the school’s questions exactly.

Internal move or promotion (e.g. associate to manager, manager to lead)

Focus on scope at the next level: owning a bigger number, setting up the experiment process, or coaching others to run tests.

Referral note to a recruiter

Three sentences: how you know them, the best number they moved, and why they fit this company’s stage and funnel.

Mistakes that weaken a recommendation

Generic praise (“data-driven, creative, a team player”) with no metric behind it.
Results with no baseline, or numbers the recommender cannot confirm.
Crediting the candidate with the whole company’s growth. Specific, owned results are more believable.
A recommender who barely saw your work. A specific letter from a product partner beats a vague one from a CEO.
Writing the letter yourself and asking them to sign it. Send a brief and let them use their own words.

Fix your resume next

Bullet bank, keywords from real job posts and a sample one-page Growth resume.

Growth resume (CV) guide

Keep going

Growth resume (CV) guide Growth interview questions with answers Practise out loud in a free AI mock interview

Frequently asked questions

Do growth roles ask for letters of recommendation?

Most companies ask for reference calls rather than letters, often with your last manager. Letters matter more for MBA and master’s applications, internal moves and some Indian employers. The same brief works for both.

Who is the best person to recommend a growth manager?

The person who held you to a number, usually your manager or founder. A product or data partner who ran tests with you is a strong second, because they can vouch for how honestly you measured.

How long should the letter be?

One page, four to five short paragraphs: introduction, two specific stories with numbers, how you work with others, and a clear close.

Can I write my own letter of recommendation?

Avoid it. Send your recommender a one-page brief with your experiments and numbers, and let them write in their own voice.