Izaak Walton League of America

What Izaak Walton League of America does

The Izaak Walton League of America is a 501(c)(3) nonprofit conservation organization founded in 1922 and headquartered in Gaithersburg, Maryland. It operates a portfolio of citizen science water quality monitoring programs built on standardized, volunteer-executed methodologies: Save Our Streams (macroinvertebrate-based biological monitoring with a 0-12 stream health index), Nitrate Watch (nitrate test strip program), and Salt Watch (chloride/road-salt monitoring, with 10,000+ samples collected to date). Data from these programs is aggregated through the Clean Water Hub online platform and used both for community action and federal/state policy advocacy on the Clean Water Act and Farm Bill. The League operates a member-driven, chapter-based distribution model covering conservation priorities spanning the Chesapeake Bay, Great Lakes, Upper Mississippi River, Missouri River, and Iowa watersheds.

The League's revenue model rests on individual membership dues, recurring and one-time donations, and project-specific foundation grants (e.g., a $25,000 Gilchrist Foundation grant for the Missouri River Initiative). Go-to-market is community-led and event-driven: chapters distribute programs, recruit and certify volunteer monitors, and host field trainings, with centralized coordination around events such as the biennial National Convention (2026 in Bloomington, MN), Nitrate Pollution Awareness Week, and Winter Salt Week. Educational products (Creek Freaks curriculum, Creek Critters program) target grades 4-8 and extend reach into schools. The organization also engages in regulatory advocacy, including public campaigns responding to the Sackett v. EPA Supreme Court ruling and proposed federal conservation budget cuts.

The League's strategic posture in 2025-2026 reflects both defensive and offensive pressures: it is publicly campaigning against federal budget cuts to conservation research while simultaneously seeking new funding mechanisms (GoFundMe for IWQIS) and pursuing third-party validation (2026 RES EcoGuardian Award for Virginia Save Our Streams). The Iowa Water Quality Information System it advocates for faces a $500,000 funding shortfall with the sensor network already reduced from 75 to 60 nodes, illustrating the financial fragility of complementary monitoring infrastructure.

Name

Izaak Walton League of America

Legal name

Izaak Walton League of America

Website

https://iwla.org

Company type

Private

Founded year

1922

Operating status

Operating

Headcount range

11–50 employees

Short description

The Izaak Walton League of America is a 501(c)(3) conservation nonprofit founded in 1922 that trains and coordinates a nationwide chapter network of volunteer citizen scientists to monitor water quality via Save Our Streams, Nitrate Watch, and Salt Watch programs, aggregating data through the Clean Water Hub to support conservation policy advocacy.

Ownership category

akta.pro rank

Product category

Environmental Conservation Services

NAICS

Environment, Conservation and Wildlife Organizations (813312), Environmental Consulting Services (54162), Testing Laboratories and Services (54138)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Water Resources & Watershed Protection (BPAGAGAK)

akta.pro secondary industries

Water Quality Monitoring, Compliance & Reporting (Sampling, Lab, Regulatory) (EUANAAAG), Watershed/Source Water & Raw Water Quality Monitoring (intakes, reservoirs, groundwater) (EUANAJAH), Water Quality Monitoring (Surface Water, Stormwater, Drinking Water) (EUAHACAC), Environmental Monitoring, Data & Reporting (Air/Water/Soil) (BPAIAMAC)

Keywords

• Water quality monitoring
• Citizen science programs
• Conservation advocacy
• Habitat preservation
• Watershed education

Headquarters

HQ city

Gaithersburg

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Membership Dues: The organization generates revenue through annual membership dues from individual members across its national chapter network. Members receive access to publications including Outdoor America magazine, chapter resources, and participate in conservation programs.
2. Donations and Contributions: Tax-deductible donations from individuals supporting conservation causes, including one-time gifts, monthly giving, vehicle donations, memorial tributes, and planned giving options.
3. Foundation Grants: The organization receives project grants from foundations such as the Gilchrist Foundation ($25,000 grant for Missouri River Initiative activities including cleanups, festivals, and advocacy work).

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

The Izaak Walton League of America runs volunteer-based citizen science water quality monitoring programs (Save Our Streams, Nitrate Watch, Salt Watch) that train and equip volunteers to collect water quality data using macroinvertebrate sampling and chemical test strips. The organization also delivers conservation advocacy at federal, state, and local levels, publishes Outdoor America magazine, offers watershed education curricula (Creek Freaks, Creek Critters) for youth, and maintains a network of local chapters supporting grassroots conservation efforts. Data collected by volunteers feeds into the Clean Water Hub online platform for water quality reporting.

Product overview

The Izaak Walton League of America operates a suite of citizen science water quality monitoring programs, with Save Our Streams as the core macroinvertebrate-based biological monitoring platform. The organization offers two complementary chemical testing programs: Salt Watch (chloride monitoring) and Nitrate Watch (nitrate monitoring), both using test strip kits that feed data into the Clean Water Hub online platform. Virginia Save Our Streams provides a regional variant with a formalized 0-12 scoring system. Educational offerings include the Creek Freaks curriculum for youth and the Creek Critters program. The League also advocates for the University of Iowa-operated Iowa Water Quality Information System sensor network, which is separate from the League's own citizen science tools.

Differentiator

Problem solved

Functional benefit

Brands

• Save Our Streams: Volunteer water quality monitoring program that trains citizens to assess stream health through macroinvertebrate sampling
• Nitrate Watch
• Salt Watch
• Virginia Save Our Streams (VA SOS)
• Creek Freaks
• Outdoor America
• Creek Critters
• Clean Water Hub

Products and services

• Save Our Streams A volunteer-based biological water quality monitoring program that trains citizens to collect aquatic macroinvertebrates (bugs) from streams and calculate ecosystem health scores based on pollution-tolerant and pollution-intolerant species ratios. Designed for community members, educators, and conservation volunteers nationwide.
• Virginia Save Our Streams (VA SOS) Virginia-specific version of Save Our Streams with a formalized 0-12 scoring system where scores 0-7 indicate unacceptable stream health, 8 is grayzone, and 9-12 are acceptable. Operated in Virginia for state-level volunteer water quality monitoring and training.
• Salt Watch A citizen science program that monitors chloride (road salt) levels in waterways using test strips to identify salt pollution problems and alert local agencies. Designed for community volunteers concerned about winter road salt contamination.
• Nitrate Watch A water quality monitoring initiative that provides free nitrate test strips and training for volunteers to test local waterways for cancer-causing nitrate pollution and report results on the Clean Water Hub. Designed for community members concerned about agricultural runoff and drinking water safety.
• Clean Water Hub An online platform where volunteers report and share their water monitoring results (nitrate, chloride, macroinvertebrate) to create a crowdsourced water quality dataset. Used by citizen scientists, researchers, and policymakers to access community-contributed water quality data.
• Creek Freaks Curriculum A hands-on curriculum introducing children in grades 4-8 to watershed education through stream monitoring experiments and advocacy activities. Designed for educators and schools seeking environmental science educational resources.
• Creek Critters A youth-focused program that engages children in exploring and monitoring local waterways and aquatic life. Designed for families, youth groups, and educators introducing children to aquatic ecology.
• Outdoor America Magazine Quarterly publication featuring conservation journalism, policy analysis, and member stories, distributed to Izaak Walton League members. Covers clean water, fish and wildlife, public lands, and conservation policy topics.

Quantifiable outcome

• 10,000+ water samples collected by Salt Watch volunteers
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Longwood UniversitycoreStrategic or Co-development PartnerLongwood University partners with the Izaak Walton League to host Virginia Save Our Streams Field Certification training events. Students and community members complete online coursework and in-person field training to become certified water quality monitors through this collaboration.
• Friends of the North ForkminorStrategic or Co-development PartnerFriends of the North Fork of the Shenandoah River offers classroom and field training components for Virginia Save Our Streams certification, collaborating on water quality monitoring education in Virginia.
• Iowa Citizens for Community ImprovementcoreStrategic or Co-development PartnerIowa Citizens for Community Improvement partners with the Izaak Walton League's Nitrate Watch program. Volunteers from this organization participate in citizen science water testing, contributing to data collection on nitrate pollution in Iowa waterways.
• National Wildlife FederationcoreStrategic or Co-development PartnerThe Izaak Walton League collaborates with the National Wildlife Federation and other conservation groups on Farm Bill advocacy and conservation priorities, particularly regarding wetlands protection and agricultural conservation programs.
• Missouri River ReliefminorStrategic or Co-development PartnerMissouri River Relief organizes river cleanups in collaboration with the Izaak Walton League, including the Omaha-Council Bluffs cleanup that removed 6.5 tons of trash with over 200 volunteers.
• University of IowacoreStrategic or Co-development PartnerThe University of Iowa operates the Iowa Water Quality Information System (IWQIS), a statewide network of water sensors monitoring river quality. The Izaak Walton League's Iowa division advocates for funding and supports this system, which faces a $500,000 funding shortfall.
• Rockville Chapter of Izaak Walton LeagueminorStrategic or Co-development PartnerThe Rockville Chapter hosts Save Our Streams Field Certification training events for the Izaak Walton League, providing in-person macroinvertebrate monitoring education.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Chesapeake Bay Foundation:
• Trout Unlimited: Trout Unlimited is a national nonprofit focused on coldwater fisheries conservation and stream/river water quality, with a chapter-based membership structure very similar to IWLA. It runs volunteer-based stream monitoring and habitat restoration programs that directly overlap with Save Our Streams and the League's overall clean water mission.

Broad incumbents

• Sierra Club: The Sierra Club is one of the largest and oldest U.S. environmental nonprofits, with comparable century-scale history, grassroots chapter network, and federal policy advocacy portfolio on clean water and public lands. It is broader in scope (climate, energy, public lands) but directly overlaps with IWLA's clean water and conservation advocacy.
• National Wildlife Federation: The National Wildlife Federation is a large U.S. conservation nonprofit and a direct IWLA partner on Farm Bill advocacy and wetlands protection. It is highly comparable in mission (habitat and water conservation) and advocacy footprint, but operates at significantly larger scale with broader portfolio of programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/IWLA_org
• LinkedInlinkedin.com/company/izaak-walton-league-of-america

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds1 record

Investors1 record

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M&A

Investments

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

Frequently asked questions about Izaak Walton League of America