What CALAMCO does

CALAMCO is a member-owned agricultural cooperative, founded in 1957 and headquartered in Stockton, California, that manufactures and distributes ammonia-based products — specifically Anhydrous Ammonia (NH3), Aqua Ammonia, and AN20 (Ammonium Nitrate) — to its stockholder-members through an authorized dealer network operating across California. The company operates an ammonia storage terminal at the Port of Stockton, which serves as its principal physical asset and distribution infrastructure for the agricultural fertilizer business, supported by a dedicated Anhydrous Ammonia Safety Program, First Responder Training, and Safety Data Sheet (SDS) documentation for each product line.

The business model is a cooperative patronage structure: members participate in stock and payment calculations, receive rebates on rebatable products, and have access to a shareholder login portal, direct deposit, a scholarship program, and quarterly CALAMCO Progress newsletters. Revenue is generated through ammonia product sales distributed via dealers to agricultural end-users (farmers). Customer concentration is in the California agricultural sector, with no public enterprise customer disclosures and no publicly available pricing details.

In December 2025, CALAMCO signed a multi-party MOU with American Bureau of Shipping, Fleet Management Limited, Sumitomo Corporation, and TOTE Services to jointly conduct a feasibility study for a ship-to-ship ammonia bunkering supply chain on the US West Coast, using its Port of Stockton terminal as a pilot demonstration base focused on car carriers and container vessels at Port of Oakland and Port of Benicia. This signals optionality for entry into the alternative marine fuel market aligned with the IMO 2050 net-zero strategy, though the bunkering initiative is currently at feasibility-study stage and is not yet a revenue-generating business line.

Name

CALAMCO

Legal name

CALAMCO

Website

https://calamco.com

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

11–50 employees

Short description

CALAMCO is a California-based, member-owned agricultural cooperative that manufactures and distributes Anhydrous Ammonia, Aqua Ammonia, and AN20 fertilizer to its stockholder-members via a dealer network, operating an ammonia storage terminal at the Port of Stockton.

Ownership category

akta.pro rank

Product category

Agricultural Fertilizers

NAICS

Nitrogenous Fertilizer Manufacturing (325311), Industrial Gas Manufacturing (32512), Basic Chemical Manufacturing (3251)

SIC

Industrial Inorganic Chemicals (2810), Wholesale-Chemicals & Allied Products (5160)

akta.pro primary industry

Nitrogen Fertilizers (Ammonia, Urea, UAN, Ammonium Nitrate/Sulfate) (AFABABAA)

akta.pro secondary industry

Ammonia & Nitrogen Feedstocks (Ammonia, Urea, Nitrates) (EUALAHAG)

Keywords

• Agricultural chemicals distribution
• Anhydrous ammonia supply
• Fertilizer cooperative services
• Aqua ammonia production
• Ammonium nitrate wholesale

Headquarters

HQ city

Stockton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Infrastructure, Personnel, Others

Revenue model

1. Ammonia Product Sales: Sale of ammonia-based agricultural products including Anhydrous Ammonia, Aqua Ammonia, and AN20 (Ammonium Nitrate) to agricultural customers through dealer network.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

CALAMCO manufactures and distributes three ammonia-based chemical products—Anhydrous Ammonia (NH3), Aqua Ammonia, and AN20 (Ammonium Nitrate)—primarily used as agricultural fertilizers. The cooperative distributes these products through an authorized dealer network to agricultural customers in California, operating an ammonia storage terminal at the Port of Stockton as its primary infrastructure asset.

Product overview

CALAMCO is an agricultural cooperative that distributes agricultural inputs and services to its member-owners. The company offers a portfolio of chemical products including anhydrous ammonia (NH3), aqua ammonia, and ammonium nitrate (AN20) primarily serving agricultural customers. The core offering consists of these fertilizer and chemical products, supported by safety programs, product specifications, and shareholder services. The company operates storage terminals (including at Port of Stockton) and provides distribution services to its agricultural members.

Differentiator

Problem solved

Functional benefit

Products and services

• NH3 (Anhydrous Ammonia) Concentrated ammonia product used primarily as agricultural fertilizer and in industrial applications. Distributed to agricultural customers and member-owners through the authorized dealer network, with supporting safety documentation and a dedicated Anhydrous Ammonia Safety Program.
• Aqua Ammonia Aqua ammonia solution product offered by CALAMCO for agricultural and industrial applications. Safety Data Sheets (SDS) and product specifications are provided to support safe handling.
• AN20 (Ammonium Nitrate) Ammonium nitrate product offered by CALAMCO with Safety Data Sheets and product specifications available through the company's safety resources, distributed through the dealer network.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Four partnerships are on record, tiered core.

• American Bureau of ShippingcoreStrategic or Co-development Partner · 1 December 2025MOU signing party for joint feasibility study on establishing ship-to-ship ammonia bunkering supply chain at US West Coast.
• Fleet Management LimitedcoreStrategic or Co-development Partner · 1 December 2025MOU signing party for joint feasibility study on establishing ship-to-ship ammonia bunkering supply chain at US West Coast.
• Sumitomo CorporationcoreStrategic or Co-development Partner · 1 December 2025MOU signing party for joint feasibility study on establishing ship-to-ship ammonia bunkering supply chain at US West Coast. Sumitomo Corporation is a Japanese trading company.
• TOTE ServicescoreStrategic or Co-development Partner · 1 December 2025MOU signing party for joint feasibility study on establishing ship-to-ship ammonia bunkering supply chain at US West Coast, targeting car carriers and container vessels.

Scale indicators1 record

Recent moves3 records

Expansion highlights4 records

Broad incumbents

• Nutrien Ltd. Nutrien is the world's largest provider of crop inputs, including a major nitrogen production footprint, with extensive North American retail and dealer distribution. Comparable to CALAMCO across both nitrogen fertilizer manufacturing and the dealer-channel distribution model, though at multi-billion-dollar scale and with a much broader product portfolio.
• Yara International: Yara is a global leader in nitrogen-based fertilizers and a leading proponent of ammonia as a maritime fuel, with ship-to-ship bunkering pilot projects in Europe. Comparable to CALAMCO as a nitrogen-ammonia specialist actively building an ammonia-as-marine-fuel business, but operates globally and at vastly greater scale.
• CF Industries Holdings: CF Industries is North America's largest manufacturer of nitrogen fertilizers (anhydrous ammonia, urea, UAN, ammonium nitrate). It is comparable to CALAMCO as a nitrogen-ammonia producer/distributor serving agricultural customers, but operates at vastly greater scale and runs its own production plants rather than serving as a distribution cooperative.
• OCI Global: OCI Global is a major global producer of nitrogen fertilizers (ammonia, urea, UAN, ammonium nitrate) and methanol, with significant US Gulf Coast operations. Comparable to CALAMCO as a pure-play nitrogen producer/distributor, particularly relevant given OCI's own strategic interest in low-carbon ammonia for marine fuel applications.
• Koch Fertilizer (Koch Ag & Energy Solutions): Koch Fertilizer is one of North America's largest producers and distributors of nitrogen fertilizers (anhydrous ammonia, urea, UAN). Comparable to CALAMCO in nitrogen product mix and US distribution focus, but operates as a privately held subsidiary of Koch Industries with production assets rather than a distribution cooperative.

Direct peers

• CHS Inc. CHS is the largest US agricultural cooperative, providing crop inputs (including nitrogen fertilizers) and energy products to farmer-owners. Highly comparable to CALAMCO in cooperative structure, member-owned distribution model, and nitrogen fertilizer offering, though operating at far larger scale across multiple US regions.
• Growmark: Growmark is a US agricultural cooperative providing crop nutrients (including nitrogen fertilizers), crop protection, and fuel products to member-owners across North America. Closely comparable to CALAMCO in member-owned cooperative structure and nitrogen fertilizer distribution, though operating at significantly larger scale and across a broader geography.
• LSB Industries: LSB Industries is a US-based manufacturer of industrial and agricultural nitrogen products, including anhydrous ammonia and ammonium nitrate, with production facilities in the southern US. Comparable to CALAMCO in nitrogen chemistry focus and product portfolio, though smaller and producer-led rather than cooperative-led.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 CALAMCO