# Day 8

**Source:** https://www.startuphub.ai/startups/day-8
**Profile type:** Startup

> Day 8 is a climate tech startup focused on sustainable protein production.

## About

Day 8 extracts Rubisco, the world's most abundant protein, from upcycled crop leaves to create a high-quality, cost-effective, and sustainable protein powder. This ingredient serves food companies looking to reduce dependency on traditional protein sources and volatile egg prices, offering a soluble, restorative, allergen-free, and neutral-tasting alternative.

## Key facts

- **Slug:** day-8
- **Website:** www.day8food.com
- **Location:** San Francisco, United States
- **Founded:** 2022-03-01
- **Employees:** 6
- **Operating status:** Active
- **Total funding:** $750K
- **Sectors / tags:** Protein, Climate, Food, Agritech, Climate Tech, FoodTech, Protein Production, Sustainability, Precision Fermentation, Alt-Protein
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/day-8-food

## Frequently asked

### What does Day 8 do?

Day 8 extracts Rubisco, the world's most abundant protein, from upcycled crop leaves to create a high-quality, cost-effective, and sustainable protein powder. This ingredient serves food companies looking to reduce dependency on traditional protein sources and volatile egg prices, offering a soluble, restorative, allergen-free, and neutral-tasting alternative.

### What is Day 8's valuation?

StartupHub estimates Day 8's effective valuation at $2.8M (range $1.9M to $4.5M, 12% confidence), based on comparable companies in the sector.

### How much funding has Day 8 raised?

Day 8 has raised a total of $750K in funding. The most recent round on record is Pre-Seed.

### Where is Day 8 headquartered?

Day 8 is headquartered in San Francisco, United States.

### When was Day 8 founded?

Day 8 was founded in 2022.

### What industry does Day 8 operate in?

Day 8 operates in Protein, Climate, Food, Agritech, Climate Tech, FoodTech.

### How many employees does Day 8 have?

Day 8 has approximately 6 people on record.

## JSON-LD

Structured data aligned with this page's `<script type="application/ld+json">` (included when the profile is server-rendered).

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home",
          "item": "https://www.startuphub.ai"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Startups",
          "item": "https://www.startuphub.ai/startups"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Day 8",
          "item": "https://www.startuphub.ai/startups/day-8"
        }
      ]
    },
    {
      "@type": "ProfilePage",
      "@id": "https://www.startuphub.ai/startups/day-8#webpage",
      "url": "https://www.startuphub.ai/startups/day-8",
      "name": "Day 8 - AI Startup Profile | StartupHub.ai",
      "description": "This is the official profile of Day 8. Day 8 is a startup founded in 2022, operating in Protein and Climate. Day 8 is a climate tech startup focused on sustainable protein production. Headquartered in San Francisco, United States. The company has approximately 6 employees.",
      "dateModified": "2026-07-28T06:00:39.125+00:00",
      "mainEntity": {
        "@id": "https://www.startuphub.ai/startups/day-8#organization"
      }
    },
    {
      "@type": "Organization",
      "@id": "https://www.startuphub.ai/startups/day-8#organization",
      "name": "Day 8",
      "url": "www.day8food.com",
      "logo": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/startups/505920.jpeg",
      "image": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/startups/505920.jpeg",
      "description": "This is the official profile of Day 8. Day 8 is a startup founded in 2022, operating in Protein and Climate. Day 8 is a climate tech startup focused on sustainable protein production. Headquartered in San Francisco, United States. The company has approximately 6 employees.",
      "sameAs": [
        "https://www.linkedin.com/company/day-8-food",
        "https://www.startuphub.ai/startups/day-8"
      ],
      "foundingDate": "2022-03-01",
      "numberOfEmployees": {
        "@type": "QuantitativeValue",
        "value": 6
      },
      "address": {
        "@type": "PostalAddress",
        "addressLocality": "San Francisco",
        "addressCountry": "US"
      },
      "knowsAbout": [
        "Protein",
        "Climate",
        "Food",
        "Agritech",
        "Climate Tech",
        "FoodTech",
        "Protein Production",
        "Sustainability",
        "Precision Fermentation",
        "Alt-Protein"
      ]
    }
  ]
}
```
