Key Players
Competitive Landscape
Finished pet-food brands are selling complete diets with one named animal protein. Fermentation companies are supplying protein ingredients that manufacturers must test for each pet species. Calysta is reaching buyers through finished dog food using FeedKind Pet. String Bio and Unibio are offering fermentation proteins that manufacturers must test and approve for use in pet-food recipes. Aerbio is reporting pet trials for the former Deep Branch Proton protein, while KnipBio is documenting JUV mainly for fish feed. Finished pet-food use separates Calysta from companies that are focusing on ingredient testing or animal-feed trials.
Finished packs tell owners which animal protein they are buying. Protein ingredients sold to pet-food manufacturers need testing before they enter a recipe. In January 2026, Kakato refreshed its ONE dry-food range for dogs and cats around single animal proteins. The packaging is helping owners recognize the selected protein during controlled feeding. In June 2025, Alvar changed several Finnish-made recipes to fish or chicken monoprotein formulas. Those recipe changes are reducing the animal-protein mix inside the finished food instead of relying on a front-label claim alone.
Company developments mapped to drivers, trends and opportunities (2026-2036)
| Development | Driver | Trend | Opportunity |
|---|---|---|---|
| July 2026: Royal Canin launched Fresh Veterinary Diets including a Selected Protein Pork single-animal-protein recipe. | Veterinarians need diet options that keep the selected animal protein clear during food-sensitivity management. | Therapeutic brands are extending single-protein diets into fresh formats. | Fresh veterinary recipes can pair clinician guidance with one named protein during controlled feeding. |
| March 2026: Natural Balance introduced Limited Ingredient Small Breed Cups with two single-animal-protein recipes. | Small-dog owners need sensitivity-focused wet food in portions suited to smaller daily meals. | Limited-ingredient brands are extending single-protein recipes into portioned wet formats. | Small-breed cups can keep wet-food portions manageable without changing the named animal protein. |
| April 2025: Pets Nature relaunched Lucky Lou SuperMono with 125g pouches and a salmon variety. | Sensitive-cat feeding favors simple animal-protein choices that owners can maintain across daily meals. | Monoprotein cat ranges are adding portioned packs and more species choices. | Portioned pouches can help owners keep one selected recipe consistent through longer feeding plans. |
KnipBio is developing JUV for fish feed and several other animal-feed uses. String Bio is positioning PRO-DG for several animal-nutrition uses across different species. Aerbio is developing the former Deep Branch Proton protein and is reporting trials in pets and other animal-feed uses.
Source: Future Market Insights, Monoprotein Market Report, 2026-2036.
Finished formulas are helping owners control protein exposure during a planned feeding trial. Fermentation proteins are giving manufacturers more protein sources to test for pet nutrition.
How do these companies differ in the monoprotein market?
Calysta is giving manufacturers a finished dog-food example because FeedKind Pet already appears in commercial recipes. String Bio and Unibio are offering fermentation proteins intended for pet nutrition, but manufacturers must test them inside finished recipes. KnipBio is documenting JUV mainly for fish feed and other feed uses. Aerbio is reporting pet trials for the former Deep Branch Proton protein. Buyers are comparing food already sold for pets with protein ingredients that require recipe and species testing.
What approval and buying requirements matter for these suppliers?
Pet-food manufacturers need safety and legal records for each species before using a new protein ingredient in a finished recipe. Calysta is citing pet approvals for FeedKind Pet across several markets. KnipBio's FDA record supports feed for farmed fish, not direct dog or cat food. Fish-feed approval does not prove the same ingredient is ready for a pet-food formula. Manufacturers are running a separate review before using the ingredient in dog or cat food.
Which product uses are supported by public records?
Calysta is supplying FeedKind Pet through commercial dog food, giving manufacturers a finished application to examine. String Bio is listing pets among the animal-nutrition uses for PRO-DG. Unibio is describing pet food as a developing application for Uniprotein. Aerbio is reporting Proton trials across animal-feed applications including pets. KnipBio is documenting JUV for fish-feed production and other feed work. The records cover finished food, pet-focused ingredient work and feed testing across different species.
How does each company's geographic reach differ?
Calysta is operating from the United States and is supporting FeedKind Pet use in European pet-food channels. Unibio is combining its Danish base with planned production in Saudi Arabia. Aerbio is developing Proton in Denmark and is using a Netherlands pilot site. String Bio is developing its protein technology from India through international animal-nutrition partnerships. KnipBio is operating from the United States with North American fish-feed regulatory records. Production location and species approvals are affecting how each protein reaches pet-food manufacturers.
Representative Company Overview
| Company | Positioning | Verified Direct Evidence |
|---|---|---|
| Calysta | Fermentation-protein supplier used in finished dog food. | Calysta states that it produces FeedKind Pet commercially and holds pet-food approvals in several markets. |
| KnipBio | JUV protein producer focused on fish feed and other animal-feed uses. | Knip states that it produces JUV commercially for customer supply. |
| Deep Branch | Proton fermentation protein, now developed by Aerbio for animal nutrition. | Aerbio reports Proton trials in pet feed and pilot production in the Netherlands. |
| String Bio | India-based PRO-DG protein developer for pet food and other animal nutrition. | String Bio lists pets among PRO-DG uses and reports the ability to produce at commercial scale. |
| Unibio | Fermentation-protein supplier developing pet-food uses and larger production plans. | Unibio lists pet food as an application in development and reports plans for larger production capacity. |
Research Methodology
The companies in this section play different roles in the monoprotein business; the list is not a market ranking. The section includes companies with current records showing finished monoprotein pet food or protein ingredients used for pet nutrition. The review uses regulator records, official product information and dated company announcements. Each finding stays tied to the named protein and the animal species mentioned by the source. The ratings compare pet-food readiness, testing records and production scale without estimating market share or revenue.
