What Symbrosia does

Symbrosia Inc. is a Hawaii-based, privately held ag-innovation company (founded 2018; HQ in Kailua-Kona) that produces and sells SeaGraze®, a feed additive derived from the red seaweed Asparagopsis taxiformis, designed to reduce enteric methane emissions in beef and dairy cattle by over 80% (and up to 90% in peer-reviewed studies at higher inclusion rates). Its core technology is a proprietary, land-based aquaculture system that combines a selectively bred, fast-growing strain seed bank of Asparagopsis (optimized for high bromoform content; 167% bromoform increase in final-stage biomass in 2024) with the trademarked Flexible Cell Formation Model™, a staged indoor-to-outdoor propagation flow anchored on modular 50,000L outdoor cultivation tanks that can feed approximately 7,500 cows each — roughly 12x the per-volume output reported for direct competitors. SeaGraze® is sold in two formats — SeaGraze® Meal (dried) and SeaGraze® Oil (lipid-based extended-release) — each positionable as the only USDA Organic-certified antimethanogenic additive on the market.

Symbrosia's business model is B2B and consultative: producers schedule consultations and engage [email protected] for SeaGraze® Meal and Oil on a volume basis tied to herd size, supported by the SeaGraze® Performance Guarantee (up to $15/head reimbursement for qualifying 180-day trials of ≥100 head). The customer base spans mid-market regenerative ranches (Carman Ranch), enterprise dairy cooperatives (Organic Valley), enterprise beef integrators (Cattlemen's Heritage), branded carbon-neutral food players (Neutral Foods), foodservice (Ola Brew), and corporate dairy and CPG majors (Danone North America), with an Ambassador Program (e.g., Platform Cattle/Emmet Storer) used as a grassroots commercial channel. A secondary monetization layer — verified carbon credits from measured enteric methane reductions — is being built in partnership with Microsoft AI for Earth.

The company is venture-backed (approximately $12.8M+ across the Series A in June 2022 led by Danone Manifesto Ventures and the Series A-1 in December 2025 with Idemitsu and One Small Planet, plus a 2019 seed round of $1.35M and non-dilutive NSF SBIR Phase I funding) and has progressed from the world's first commercial Asparagopsis trial on an organic farm in Dover Plains, New York (2020) to a commercial manufacturing transition in late 2025, supplying 6,000 head of cattle ahead of a planned 22,000-head expansion in 2026 and advancing regulatory work across the U.S., Brazil, and Japan.

Name

Symbrosia

Legal name

Symbrosia Inc.

Website

https://symbrosia.co

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Symbrosia is a Hawaii-based cleantech company producing SeaGraze®, a USDA Organic red seaweed (Asparagopsis taxiformis) feed additive that reduces enteric methane in beef and dairy cattle by over 80%, sold B2B to producers with a performance-guarantee trial program.

Ownership category

akta.pro rank

Headquarters

HQ city

Kailua Kona

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Technology or R&D, Infrastructure, Personnel, Marketing or Sales

Revenue model

1. B2B SeaGraze® feed additive sales (Meal and Oil): Sale of proprietary Asparagopsis-based feed additive (Meal and Oil formats) directly to beef and dairy cattle operations, on a usage/volume basis tied to herd size (e.g., feeding thousands of head). Includes the SeaGraze® Performance Guarantee (up to $15/head reimbursement for qualifying 6-month trials) to de-risk adoption.
2. Verified carbon credits and carbon inset programs: Generation and sale of verified carbon credits from measured enteric methane reductions achieved via SeaGraze® feeding. Symbrosia is designing a data-driven carbon credits program with Microsoft AI for Earth (Alma Cárdenas) to monetize the methane reduction attribute for producers, brands, and corporate buyers.
3. Branded merchandise sales (limu-themed apparel): Direct-to-consumer merchandise sales through Symbrosia's own e-commerce storefront (Limu Kohu Hat $28, oversized Native Limu of Hawai'i shirt $35). Proceeds go to the limu (seaweed) restoration project; minor revenue stream used for brand engagement.
4. Strategic partnership and co-development value capture: Commercial partnerships with major dairy and food companies (e.g., Danone, Danone North America) for joint trials, research, and integration of SeaGraze® into brand supply chains (carbon neutral dairy, beef, etc.). Revenue is captured through supply agreements tied to these partnerships.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels9 records

Core offering

Symbrosia cultivates and sells SeaGraze®, a proprietary red seaweed (Asparagopsis taxiformis) feed additive in Meal and Oil formats, marketed as the only USDA Organic antimethanogenic additive. The product reduces enteric methane emissions in beef and dairy cattle by over 80% (up to 90% in peer-reviewed studies) at a low ~0.125% inclusion rate, with the lipid-based Oil formulation enabling extended-release dosing through existing feed-grade lipid categories.

Product overview

Symbrosia's offering is a unified product line centered on a single core technology — the proprietary cultivation of the red seaweed Asparagopsis taxiformis — which is sold under the SeaGraze® brand in multiple formats tailored to livestock operations. The core SeaGraze® additive is the umbrella offering, with two primary application sub-products — SeaGraze® for Beef and SeaGraze® for Dairy — that target each production segment with species-specific messaging and on-ramp programs (such as the SeaGraze® Performance Guarantee for beef). The same seaweed biomass is also delivered in two physical formats — SeaGraze® Meal (dried) and SeaGraze® Oil (lipid-based, extended-release) — to fit different ration strategies, with the oil format being the focus of large-batch commercial scale-up funded by the December 2025 Series A-1 round. Together, these named products form a single platform-plus-modules architecture: one core bioactive (SeaGraze®) delivered through differentiated formats (Meal, Oil) and differentiated go-to-market tracks (Beef, Dairy).

Differentiator

Problem solved

Functional benefit

Brands

• SeaGraze®: Symbrosia's flagship USDA Organic-certified red seaweed (Asparagopsis taxiformis) feed additive for beef and dairy livestock, offered as SeaGraze® Meal, SeaGraze® Oil, and SeaGraze® for Beef/Dairy, which reduces enteric methane emissions by over 80%.

Products and services

• SeaGraze® Flagship red seaweed (Asparagopsis taxiformis) feed additive that reduces livestock enteric methane emissions by over 80%; marketed as the only USDA Organic antimethanogenic additive, grown sustainably in Hawai'i, rich in protein, minerals, amino acids, and antioxidants, and safe for cattle, sheep, buffalo, and goats.
• SeaGraze® for Beef Beef-specific positioning of the SeaGraze® feed additive, including the SeaGraze® Performance Guarantee supporting beef producers with a 6-month trial and up to $15 per head reimbursement eligibility for ≥100-head operations.
• SeaGraze® for Dairy Dairy-specific positioning of the SeaGraze® feed additive formulated for integration into dairy rations, delivering methane reduction and amino acid/nutritional benefits for dairy operations including cooperatives like Organic Valley and dairy-aligned brands like Danone North America.
• SeaGraze® Meal Dried meal format of the SeaGraze® additive produced from cultivated Asparagopsis taxiformis biomass and used in cattle rations, including under the SeaGraze® Performance Guarantee protocol.
• SeaGraze® Oil Lipid-based, extended-release oil formulation of SeaGraze® designed for livestock feed supplementation; large-batch production targeted for upcoming feedlot deployments as part of the Series A-1 commercial scale-up.
• Limu Kohu Hat Organic cotton baseball cap sold for $28 through Symbrosia's branded merchandise storefront; proceeds support the limu (seaweed) restoration project.
• Native Limu of Hawai'i Shirt Made-on-demand oversized shirt with Native Limu of Hawai'i graphics, priced at $35 through Symbrosia's branded merchandise storefront; proceeds support the limu (seaweed) restoration project.

Quantifiable outcome

• Reduces enteric methane emissions by over 80% (up to 90% in peer-reviewed studies at ~0.5% inclusion rate)
• +5 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators9 records

Recent moves8 records

Expansion highlights8 records

Direct peers

• CH4 Global: Australia-based and New Zealand-based company commercializing Asparagopsis-based feed additives (Methane Tamer) to reduce enteric methane in cattle. The closest direct competitor to Symbrosia in Asparagopsis cultivation and commercialization.
• Blue Ocean Barns: U.S.-based Asparagopsis feed additive company (Brominata) targeting dairy and beef producers with seaweed-based methane reduction. Competes head-to-head with Symbrosia's SeaGraze® in North American beef and dairy markets.
• Volta Greentech: Sweden-based company developing seaweed-based feed supplements (RedFeed) to reduce methane emissions from cattle. Comparable technology approach targeting European dairy and beef producers.
• Mootral: UK/Swiss company developing natural feed additive formulations (including garlic- and citrus-based) to reduce enteric methane in cattle. Direct competitor in the methane-reducing feed additive category, with a different bioactive mechanism than Asparagopsis.

Regional players

• SeaForest: Australian company developing Asparagopsis-based feed supplements for the Australian and Asia-Pacific livestock markets. Direct technology peer with regional rather than overlapping geographic focus with Symbrosia.

Broad incumbents

• dsm-firmenich (Bovaer / 3-NOP): Global animal nutrition major with Bovaer, a 3-NOP-based synthetic methane-reducing feed additive approved in the EU, UK, Australia, and others. A larger, well-funded competitor with broader geographic reach, though using a synthetic (non-organic) mechanism.
• Elanco Animal Health: Large animal health company with a portfolio of methane-reduction solutions, including investments in feed additive approaches. Represents the broad incumbent path into the methane-reduction market that Symbrosia competes against for producer mind share.
• Cargill: Global agribusiness and feed manufacturer with sustainability commitments in livestock supply chains. Indirect competitor and potential partner/distributor for Symbrosia given Cargill's reach into beef and dairy nutrition.

Emerging players

• Athian: U.S.-based carbon credit marketplace focused on livestock emissions, aggregating verified reductions from dairy and beef producers. Partial overlap: Athian is a carbon-credit monetization layer that could be a channel partner or competitor to Symbrosia's Microsoft AI for Earth-backed credit program.
• Greener Grazing (previously known as Proa Group): Australia-based startup developing Asparagopsis-based feed additives and supporting carbon credit programs for cattle producers. Direct technology and business model peer operating in the Asia-Pacific market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights8 records

Customer concentration

• Xx.com/symbrosia

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds4 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Symbrosia