The Chlorine Institute

What The Chlorine Institute does

The Chlorine Institute (CI), founded in 1924 and headquartered in Arlington, Virginia, is a not-for-profit technical trade association serving approximately 200 member companies across the chlor-alkali value chain. Its members produce the majority of chlorine, sodium hydroxide, potassium hydroxide, sodium hypochlorite, and hydrogen chloride in the United States and Canada, and include packagers, distributors, equipment makers, water utilities, and emergency response contractors in North America, Latin America, Japan, and other regions. CI's mission centers on advancing safe, secure, environmentally compatible, and sustainable production, distribution, and use of its mission chemicals.

CI's core deliverables are organized around five Issue Teams: Stewardship, Health/Environment/Safety/Security (HESS), Emergency Preparedness, and Transportation. Its flagship offerings include the CI Pamphlet technical publication library (spanning foundational topics such as Pamphlet 1: Chlorine Basics through specialized references like Pamphlet 155 for water/wastewater operators), the CHLOREP (Chlorine Emergency Response Plan) mutual-aid system established in 1972, and TRANSCAER hazardous-materials transportation outreach. The institute also operates member training events (Annual and Fall Meetings), public webinars, the Stay Tuned with CI podcast, and a member-only resource portal.

Revenue is generated exclusively through membership dues and production-based assessments. North American Producer members pay $6,050 in annual dues plus per-ton assessments (19.570152¢ per short ton of chlorine gas produced and 53.086359¢ per short ton of liquid chlorine shipped for the Sept 2024–Aug 2025 period). Packagers/Bleach Producers pay $6,050 plus tiered facility and ECU-based assessments, while Overseas Producers pay $9,830. Associate Members pay $6,050, with reduced rates of $655 for verified Emergency Response Contractors and $915 for Water/Wastewater Utilities. CI is governed by a Board of Directors drawn from member companies and operates with a small staff of approximately 10 personnel.

Name

The Chlorine Institute

Legal name

The Chlorine Institute Inc.

Website

https://chlorineinstitute.org

Company type

Private

Founded year

1924

Operating status

Operating

Headcount range

1–10 employees

Short description

The Chlorine Institute is a 100-year-old, not-for-profit technical trade association serving approximately 200 member companies across the chlor-alkali value chain, providing safety publications (CI Pamphlets), the CHLOREP emergency response system, TRANSCAER training, and regulatory advocacy funded by membership dues and production-based assessments.

Ownership category

akta.pro rank

Product category

Chemical Industry Trade Association

NAICS

Chemical Manufacturing (325)

SIC

Services-Membership Organizations (8600), Chemicals & Allied Products (2800), Industrial Inorganic Chemicals (2810)

akta.pro primary industry

Chlor-Alkali & Derivatives (IMAEAAAC)

akta.pro secondary industries

PVC & Chlorinated Polymers (IMAEANAB), Bleach & Chlorine-Based Cleaners (CRAJAKAA), Disinfection & Oxidation (Chlorine/Chloramine, UV, Ozone, AOP) (EUANABAD), Disinfection & Pathogen Control (UV/Chlorine/Ozone) (EUANADAI)

Keywords

• Chemical safety publications
• Chlor-alkali industry association
• Emergency response training
• Hazardous materials handling
• Regulatory advocacy services

Headquarters

HQ city

Arlington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Membership Dues and Assessments: The Chlorine Institute generates revenue through annual membership dues and production-based assessments. North American Producer members pay dues of $6,050 plus per-ton chlorine production assessments. Packager/Bleach Producer members pay dues of $6,050 plus tiered facility assessments. Overseas Producer members pay $9,830. Associate members pay $6,050, with reduced rates for Emergency Response Contractors ($655) and Water/Wastewater Utilities ($915). Revenue supports the institute's safety mission, publications, training, and advocacy activities.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

The Chlorine Institute is a not-for-profit technical trade association that supports the safe production, distribution, and use of chlorine, sodium and potassium hydroxides, sodium hypochlorite, hydrogen chloride, and vinyl chloride monomer. It delivers its mission through technical publications (CI Pamphlets), the CHLOREP mutual-aid emergency response program, TRANSCAER hazardous materials training, regulatory advocacy, industry meetings, and a member directory serving approximately 200 member companies.

Product overview

The Chlorine Institute is a technical trade association (not a software product company) that provides a comprehensive portfolio of safety-focused services, publications, and programs for the chlor-alkali industry. Its core offerings center on CI Pamphlets (technical safety publications), the CHLOREP emergency response training program, TRANSCAER community outreach, and Annual/Fall industry meetings. Additional services include the Stay Tuned with CI podcast, member directory, technical inquiry services, and the Peter M. Mayo Award recognition program. Together, these products support safe production, distribution, and use of chlorine and related chemicals.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 33 facilities achieved zero recordable injuries, zero reportable quantity incidents, and zero RMP reportable accidents for five consecutive years (Diamond Level Recognition 2025)
• +2 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

15 partnerships are on record, tiered core and minor.

• Mississippi State Fire Academy (MSFA)coreImplementation/ SI/ Consulting Partner · 1 January 2007Since 2007, the Mississippi State Fire Academy has provided the premier venue for CI's CHLOREP Team Training, delivering world-class hands-on, scenario-based emergency response instruction. This enduring partnership celebrated 20 years in 2026, with 129 students and 70 instructors participating in the most recent training. CI presented an award to MSFA recognizing this milestone partnership. Participants travel from across the U.S., Canada, Mexico, Puerto Rico, and Trinidad and Tobago.
• American Chemistry Council (ACC)coreStrategic or Co-development PartnerACC is America's oldest trade association of its kind, representing companies engaged in the business of chemistry. The Chlorine Institute works with ACC on advocacy, regulatory matters, and the Responsible Care initiative. CI's President Frank Reiner works with ACC among other organizations.
• Chlorine Panel of the American Chemistry CouncilcoreStrategic or Co-development PartnerThe Chlorine Panel of ACC represents producers and users of chlorine in North America, promoting and protecting the sustainability of chlorine chemistry processes, products, and applications in accordance with Responsible Care principles.
• World Chlorine Council (WCC)coreStrategic or Co-development PartnerWCC is a global network representing the chlorine and chlorinated products industries, bringing together national and regional trade associations in over 27 countries accounting for over 80 percent of global chlorine production. CI's Daniel Stein staffs WCC's Global Advocacy and Science Team. CI participated in the World Chlorine Council Global Chlorine Safety Seminar (October 2024).
• TRANSCAER (Transportation Community Awareness and Emergency Response)coreStrategic or Co-development PartnerTRANSCAER is a voluntary national outreach effort focused on helping communities prepare for and respond to hazardous materials transportation incidents. CI staff, including Cindy Kuranchie, manage TRANSCAER events and serve on the National TRANSCAER Task Group. CI organizes and sponsors TRANSCAER training events across the country.
• Euro ChlorminorStrategic or Co-development PartnerEuro Chlor represents the European chlor-alkali industry and is listed as an industry association link on CI's website, indicating a collaborative relationship for information sharing and global alignment on safety standards.
• ClorosurminorChannel Partner/ Reseller/ DistributorClorosur is a Latin American industry association that provides Spanish versions of CI Publications. They represent manufacturers and users of chlorine, alkalis, and derivatives, facilitating information exchange and working with similar organizations worldwide.
• Japan Soda Industry Association (JSIA)minorStrategic or Co-development PartnerJSIA is listed as an industry association link, indicating a collaborative relationship for international information exchange in the chlor-alkali industry. Founded in 1948 with origins dating to 1918.
• Asociación Nacional de la Industria Química (ANIQ)minorStrategic or Co-development PartnerANIQ represents over 95% of private chemical production in Mexico through about 220 member companies. Listed as an industry association link on CI's website.
• RusChlorminorStrategic or Co-development PartnerRusChlor handles Russian chlor-alkali enterprise interests, government relations, and industry regulation. Listed as an industry association link on CI's website.
• Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA)coreStrategic or Co-development PartnerCI collaborates with DHS CISA on chemical security matters. Episode 7 of the Stay Tuned with CI podcast featured Annie Hunziker Boyer (Branch Chief at CISA) and Dr. Ashley Pennington discussing the loss of CFATS authorization, voluntary ChemLock program, and chemical security resilience. CI works with DHS on the Jack Rabbit II project and Site Security Plans.
• U.S. Environmental Protection Agency (EPA)coreStrategic or Co-development PartnerCI submitted comments on EPA's Risk Management Program (RMP) Proposed Rule on May 11, 2026, urging a performance-based approach rather than technology-prescriptive requirements. CI's President and staff serve as primary representatives to EPA on regulatory matters. CI submitted RMP comments advocating for practical measures such as joint emergency response exercises and streamlined community notification systems.
• Association of American Railroads (AAR) and Tank Car CommitteecoreStrategic or Co-development PartnerCI works closely with AAR and its Tank Car Committee on transportation safety matters. CI's VP of Transportation Robyn Kinsley represents members before the FRA's Rail Safety Advisory Committee and at AAR Tank Car Committee meetings. CI members participate in the AAR's NAR Grand Slam Award program for hazardous materials shippers.
• Kemira Water SolutionsminorOthersKemira was awarded the AAR Grand Slam NAR Award for 10 consecutive years of exemplary hazardous materials rail shipping with zero non-accident releases. Kemira is a Diamond Level honoree and Lloyd Moore serves as a speaker on CI's HCl 101 Webinar.
• Kona IceminorOthersKona Ice provided a mobile frozen treat service during the 2026 CHLOREP Team Training at MSFA, offering a social break for participants during the week of training.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• The Sulphur Institute: International trade association for the sulphur industry, operating a similar model of technical publications, advocacy, and member services. It is structurally analogous to CI but focused on sulphur rather than chlor-alkali mission chemicals.
• National Association of Chemical Distributors: U.S. trade association for chemical distributors including Brenntag and Univar, which are also CI members. NACD's membership and advocacy around Responsible Distribution overlaps with CI's packager/distributor member segment, making it a directly comparable trade body serving overlapping stakeholders.
• The Vinyl Institute: U.S. trade association focused on vinyl chloride monomer and PVC, which are mission chemicals for CI. It serves a narrower subset of CI's membership (VCM/PVC value chain) with a similar trade-association model of advocacy, technical resources, and safety programs.

Others

• American Water Works Association: The largest international scientific and educational association for water utility professionals. Several large water utilities (e.g., Metropolitan Water District of Southern California, LADWP) are CI members because they use chlorine for disinfection, making AWWA a thematically adjacent association for CI's water-utility associate members.

Regional players

• Japan Soda Industry Association: Japanese chlor-alkali industry association founded in 1948 with roots to 1918. It serves as CI's regional counterpart in Japan, collaborating on international information exchange and global safety standards.
• Euro Chlor: The European chlor-alkali industry association that represents producers in Europe under the Cefic umbrella. It serves the same industry niche as CI and collaborates on global safety standards, but its geographic footprint is Europe rather than North America.
• World Chlorine Council: The global coordination body for national and regional chlorine associations, covering 27+ countries and 80%+ of global chlorine production. CI's Daniel Stein staffs WCC's Global Advocacy and Science Team, making WCC a direct peer in advocacy and standards alignment at the international level.
• Clorosur: Latin American chlor-alkali industry association representing manufacturers and users of chlorine, alkalis, and derivatives. CI distributes Spanish-language publications through Clorosur; it is the regional counterpart covering Central and South America.

Broad incumbents

• Society of Chemical Manufacturers & Affiliates: U.S. trade association representing specialty and batch chemical manufacturers. SOCMA is broader than CI in chemistry coverage but operates a similar advocacy, EHS, and member-services model for chemical industry participants.
• American Chemistry Council: The largest U.S. chemical industry trade association; CI works directly with ACC on advocacy, regulatory matters, and the Chlorine Panel. ACC is the broader incumbent with overlapping membership and policy agenda, but covers all chemistries rather than specializing in chlor-alkali.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/thechlorineinst
• Facebookfacebook.com/thechlorineinstitute
• LinkedInlinkedin.com/company/chlorine-institute-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

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 The Chlorine Institute