Top 10 protein bars brands on Amazon (estimated revenue)

Ranked by estimated monthly revenue from Amazon's Protein Bars Best Sellers top 100. Updated October 15, 2026.

Quest Nutrition is the top-selling protein bars brand on Amazon by estimated revenue, at about $2.8M/mo from 8 products in the Protein Bars Best Sellers top 100. That is about 24% more than #2 Pure Protein (~$2.2M/mo). The list is fairly concentrated: the top 3 brands take about 44% of its estimated sales and the top 10 about 70%, spread across 47 brands in total. All figures are modeled estimates, not Amazon data.

#BrandEst. revenue/moShare of listEst. units/moProductsBest rank
1Quest Nutrition19% share · best #2$2.8M19%111K8#2
2Pure Protein15% share · best #1$2.2M15%96.7K5#1
3Barebells9% share · best #3$1.3M9%41.6K1#3
4BUILT5% share · best #4$768K5%25.6K1#4
5ONE5% share · best #8$760K5%20.1K2#8
6CLIF4% share · best #5$541K4%37.2K6#5
7NuGo4% share · best #10$530K4%17K3#10
8MET-Rx3% share · best #9$498K3%13.3K2#9
9Power Crunch3% share · best #17$444K3%23.4K6#17
10TRUBAR2% share · best #16$298K2%9.4K2#16
Estimates, not official Amazon data. Rankings and revenue are modeled from public Amazon Best Sellers lists and list prices (units × price, before returns, discounts and fees; not profit) and may differ from real sales. How it works.

The top 10, brand by brand

1. Quest Nutrition

~$2.8M/mo est. revenue (19% of this list) and ~111K units/mo from 8 products; best position #2. Its highest-ranked product here is Quest Nutrition Ultimate Variety Pack Protein Bars, High Protein, Low Carb… at #2. Overall it ranks #64 of 3,479 brands.

2. Pure Protein

~$2.2M/mo est. revenue (15% of this list) and ~96.7K units/mo from 5 products; best position #1. Its highest-ranked product here is Pure Protein Chocolate Peanut Butter Protein Bars, 20g Protein, 12 Ct | 3g… at #1. Overall it ranks #109 of 3,479 brands.

3. Barebells

~$1.3M/mo est. revenue (9% of this list) and ~41.6K units/mo from 1 product; best position #3. Its highest-ranked product here is Barebells Classics Protein Bars Variety Pack, 12 Bars, 20g Protein | Classics… at #3. Overall it ranks #247 of 3,479 brands.

4. BUILT

~$768K/mo est. revenue (5% of this list) and ~25.6K units/mo from 1 product; best position #4. Its highest-ranked product here is BUILT Puff Protein Bars, Variety Pack, 15g-17g Protein - 12 Count | Protein… at #4. Overall it ranks #408 of 3,479 brands.

5. ONE

~$760K/mo est. revenue (5% of this list) and ~20.1K units/mo from 2 products; best position #8. Its highest-ranked product here is ONE Maple Glazed Doughnut Protein Bars, 20g Protein, Gluten Free, 12 ct | 20g… at #8. Overall it ranks #242 of 3,479 brands.

6. CLIF

~$541K/mo est. revenue (4% of this list) and ~37.2K units/mo from 6 products; best position #5. Its highest-ranked product here is CLIF BUILDERS Protein Bars, Chocolatey Peanut Butter, Gluten Free, 12 ct | 20g… at #5. Overall it ranks #55 of 3,479 brands.

7. NuGo

~$530K/mo est. revenue (4% of this list) and ~17K units/mo from 3 products; best position #10. Its highest-ranked product here is NuGo Dark, Pretzel w/SS, 12g Vegan Protein Bar, Gluten Free, 24 Count at #10. Overall it ranks #645 of 3,479 brands.

8. MET-Rx

~$498K/mo est. revenue (3% of this list) and ~13.3K units/mo from 2 products; best position #9. Its highest-ranked product here is MET-Rx Big 100 Protein Bar, Super Cookie Crunch, 32g Protein, 9 Ct | Great as… at #9. Overall it ranks #674 of 3,479 brands.

9. Power Crunch

~$444K/mo est. revenue (3% of this list) and ~23.4K units/mo from 6 products; best position #17. Its highest-ranked product here is Power Crunch Vanilla Cream Protein Bars, 12 Ct, 1.4 oz Each | On-the-go Power… at #17. Overall it ranks #544 of 3,479 brands.

10. TRUBAR

~$298K/mo est. revenue (2% of this list) and ~9.4K units/mo from 2 products; best position #16. Its highest-ranked product here is TRUBAR Vegan Protein Bar, Get In My Belly Pb & Jelly, Gluten Free, Plant Based… at #16. Overall it ranks #1132 of 3,479 brands.

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