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Jennifer Lieb

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About
Training with me is about more than just changing your outer appearance. I aim to help my clients become healthier, happier, and create a lifestyle change that is sustainable. I accept clients of all athletic levels and specialize in fat loss, muscle building, and postpartum fitness. The gym can be a daunting place and it is my goal to ensure my clients receive the best workout they can while feeling comfortable. I look forward to working with you! (Please note: prices vary depending on your needs/etc and will not be given until a thorough consultation has been completed.) Check out my Instagram for more pics/videos @Jenniferlieb_ I *only* train out of Reign Training Facility in Corona. Please keep this location factor in mind when scheduling a consultation. Thank you for your preference!
Overview

Hired 7 times

Background checked

1 employee

7 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Apple Pay, Cash, Venmo, and Zelle.

Top Pro status

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2025

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2023

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2022

Services offered
Event to prep for

Athletic event or competition

Vacation

Wedding

Fitness goals

Lose weight

Get toned

Build muscle

Gain flexibility

Client age

Younger than 18

18 - 22 years old

23 - 30 years old

31 - 40 years old

Projects and media
Projects and media
Reviews

Customers rated this pro highly for work quality, professionalism, and value.

Exceptional 5.0

33 reviews

5

100%

4

0%

3

0%

2

0%

1

0%

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pro avatar
Brittney H.

Sep 17, 2026

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Hired on Thumbtack

Jen was my trainer for over a year and I can’t thank her enough for the amount of knowledge, patience and dedication she put into helping me reach my fitness goals. My main goal was to build muscle and we did just that! She taught me progressive overload, correct form and proper nutrition. I have gained so much more confidence in myself and feel stronger both physically and mentally. I highly recommend Jen as a personal trainer!
Personal Training
pro avatar
Noah G.

Aug 26, 2026

Jen is an amazing trainer. She gas helped me get on a healthy lifestyle. The accountability she holds me to is what I needed. My doctor is very happy with my over all health because of her. Just follow the meal plan she provides and stick to the training, and the progress will show. I highly recommend her!
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Melissa A.

Feb 19, 2025

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Hired on Thumbtack

I’ve been training with Jenn for the past 4 months and she has been nothing short of amazing. She is a true professional. During the initial consultation, she took the time to listen and understand my goals. I was recovering from an ankle injury and she incorporated exercises that have helped strengthen and re-stabilize my ankle. The thing I appreciate most about her is how attentive she is. Throughout every session she is completely focused on you- ensuring your form is correct and you’re getting the most out of each exercise. So far I’ve gained muscle mass and simultaneously lost about 9-10 inches overall. I would 100% recommend her to anyone who’s serious about getting in shape!
Personal Training
pro avatar
Savannah U.

Jul 9, 2025

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Hired on Thumbtack

I worked with Jennifer in December 2024 and she was AMAZING. She was great at communicating when there were changes in the schedule. I grew so much for confident in the gym and making meals that help me hit my goals because of her. I highly recommend working with her and making the investment!
Personal Training
pro avatar
Samantha S.

Jul 6, 2023

•

Hired on Thumbtack

Where to begin!! I have been training with Jen for 7 months now and I would say easily that she is the best person I have trained with by far- and I have had my fair share of experience working with trainers! I really wanted to get stronger, more confident, and establish a routine of fitness again after Covid threw me off. She has helped me do so while taking into account my sciatic limitations and working around those limitations than pushing me through them to the point of a flare up.

She is not one to cancel sessions often and is super timely+communicative. I am so beyond appreciate of her kindness, patience, and knowledge about gains. I actually wore shorts IN PUBLIC for the first time in YEARS today because of her. She’s the best so don’t wait and just get started lol.
Personal Training
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Jennifer Lieb

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