SuppRankedTop 10 whey protein brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Whey Protein Best Sellers top 100. Updated October 15, 2026.
Optimum Nutrition is the top-selling whey protein brand on Amazon by estimated revenue, at about $2.2M/mo from 5 products in the Whey Protein Best Sellers top 100. That is about the same as #2 Isopure (~$2.1M/mo). The list is fragmented: the top 3 brands take about 24% of its estimated sales and the top 10 about 54%, spread across 64 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Optimum Nutrition9% share · best #1 | $2.2M |
| 2 | Isopure9% share · best #9 | $2.1M |
| 3 | Dymatize6% share · best #2 | $1.5M |
| 4 | Transparent Labs6% share · best #3 | $1.4M |
| 5 | Nutricost6% share · best #14 | $1.4M |
| 6 | Ascent4% share · best #12 | $1.1M |
| 7 | NAKED4% share · best #4 | $1.1M |
| 8 | Levels4% share · best #7 | $962K |
| 9 | RAW3% share · best #27 | $717K |
| 10 | Oath3% share · best #8 | $709K |
The top 10, brand by brand
1. Optimum Nutrition
~$2.2M/mo est. revenue (9% of this list) and ~40.6K units/mo from 5 products; best position #1. Its highest-ranked product here is Optimum Nutrition Gold Standard Whey Protein Powder, Vanilla Ice Cream, 2LB… at #1. Overall it ranks #28 of 3,479 brands.
2. Isopure
~$2.1M/mo est. revenue (9% of this list) and ~41.2K units/mo from 5 products; best position #9. Its highest-ranked product here is Isopure Zero Carb Whey Isolate Protein Powder, Creamy Vanilla 3 LB | 25g… at #9. Overall it ranks #139 of 3,479 brands.
3. Dymatize
~$1.5M/mo est. revenue (6% of this list) and ~36.5K units/mo from 3 products; best position #2. Its highest-ranked product here is Dymatize ISO100 Protein Powder, 100% Whey Isolate, Gourmet Vanilla | 25g… at #2. Overall it ranks #106 of 3,479 brands.
4. Transparent Labs
~$1.4M/mo est. revenue (6% of this list) and ~21.6K units/mo from 1 product; best position #3. Its highest-ranked product here is Transparent Labs Grass-Fed Whey Protein - 30 Servings, French Vanilla… at #3. Overall it ranks #68 of 3,479 brands.
5. Nutricost
~$1.4M/mo est. revenue (6% of this list) and ~19.1K units/mo from 3 products; best position #14. Its highest-ranked product here is Nutricost Whey Protein Concentrate Powder (Unflavored) 2LBS, Gluten Free… at #14. Overall it ranks #2 of 3,479 brands.
6. Ascent
~$1.1M/mo est. revenue (4% of this list) and ~13.2K units/mo from 2 products; best position #12. Its highest-ranked product here is Ascent 100% Whey, Native Whey Protein Blend - Clean Post Workout Recovery… at #12. Overall it ranks #422 of 3,479 brands.
7. NAKED
~$1.1M/mo est. revenue (4% of this list) and ~17.1K units/mo from 3 products; best position #4. Its highest-ranked product here is NAKED Whey 2LB 100% Grass Fed Whey Protein Powder - Only 1 Ingredient… at #4. Overall it ranks #57 of 3,479 brands.
8. Levels
~$962K/mo est. revenue (4% of this list) and ~16.6K units/mo from 1 product; best position #7. Its highest-ranked product here is Levels Whey Protein Powder, No Artificial Ingredients, Vanilla Bean, 2LB | 24G… at #7. Overall it ranks #513 of 3,479 brands.
9. RAW
~$717K/mo est. revenue (3% of this list) and ~9.1K units/mo from 3 products; best position #27. Its highest-ranked product here is Raw Grass Fed Whey Protein Powder, Unflavored – 1 Ingredient, No Additives or… at #27. Overall it ranks #90 of 3,479 brands.
10. Oath
~$709K/mo est. revenue (3% of this list) and ~18.3K units/mo from 2 products; best position #8. Its highest-ranked product here is Oath Nutrition Clear Whey Isolate Protein Powder, Frosty Lemonade, 20g Complete… at #8. Overall it ranks #530 of 3,479 brands.
As an Amazon Associate SuppRanked earns from qualifying purchases.
Explore more
Full Whey Protein ranking
All 64 brands in the list, ordered by rank strength, plus the top 10 products.
See all Whey Protein brands →