350 Seattle

What 350 Seattle does

350 Seattle is a 501(c)(3) grassroots climate justice organization (EIN 46-4201865) and a local chapter of the international 350.org network, headquartered at 600 1st Ave, Suite 200C in Seattle, Washington. The organization mobilizes cross-class, multi-generational, and multi-racial community members around campaigns addressing the root causes of the climate crisis, with a portfolio of programs including the 350 WA Civic Action Team (state-level legislative advocacy), Climate Safe Pensions Washington (targeting the state's $200 billion pension fund for fossil fuel divestment), Make Polluters Pay, the Seattle Green New Deal, Community Resilience, Aviation, Artful Activism, Policy Action, and the Climate Grief & Empowerment Group (Coming Back to Life).

The organization's technology footprint consists entirely of standard, off-the-shelf digital organizing tools: email newsletters (The Current), social media platforms (Facebook, Twitter/X, YouTube, Instagram, TikTok), Zoom for virtual meetings, and Google Suite for collaboration. There are no proprietary technology products, AI/ML systems, or commercial software offerings.

350 Seattle's revenue model is built on individual donations (including the annual GiveBIG campaign with $5,000–$10,000 matched donation goals) and a newly launched recurring membership model with monthly dues designed to diversify away from foundation funding. Operations are volunteer-driven through a Staff Collective governance model, with revenue classified as donations and subscription/recurring membership dues. The organization's go-to-market is community-led grassroots organizing: action alerts, public events, rallies, coalition-building with labor unions (WSEA, WA State Labor Council), frontline community groups, and policy advocacy at the city, state, and federal levels. Notable wins include canceling Shell's Arctic drilling (2015), securing $3 billion Seattle divestment from Wells Fargo (2017), winning Building Emissions Performance Standard passage (2023), and obtaining funding to upgrade 13 of Seattle's 26 community centers as climate resilience hubs (2022). The organization earned a Candid Platinum Seal of transparency in 2025.

Name

350 Seattle

Legal name

350 Seattle

Website

https://350seattle.org

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

350 Seattle is a 501(c)(3) grassroots climate justice organization and local 350.org chapter that mobilizes volunteers in Seattle and Washington State to campaign on fossil fuel divestment, legislative advocacy, pension reform, and community resilience.

Ownership category

akta.pro rank

Product category

Climate Justice Advocacy

NAICS

Environment, Conservation and Wildlife Organizations (813312)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

Climate Change Mitigation & Adaptation (BPAGAGAF)

akta.pro secondary industries

Environmental Justice & Community Environmental Health (BPAGAGAL), Environmental Education & Outreach (BPAGAGAH), Climate Resilience & Disaster Risk Reduction (DRR) (BPAGABAK)

Keywords

• Climate justice advocacy
• Grassroots organizing
• Fossil fuel divestment
• Community mobilization
• Legislative advocacy

Headquarters

HQ city

Seattle

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, Others

Revenue model

1. Individual Donations: 350 Seattle relies on individual donations from supporters, including a GiveBIG annual fundraising campaign with stated goals of $5,000-$10,000 matched by generous donors. The organization is transitioning to a membership model with monthly dues to diversify away from foundation funding.
2. Membership Dues: Launching a membership model where members contribute monthly dues as a form of grassroots fundraising. This model aims to sustain the organization's work while staying rooted in community power and less reliant on large foundations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

350 Seattle is a 501(c)(3) grassroots-led climate justice organization that mobilizes volunteers across multiple teams to run advocacy campaigns, fossil fuel divestment efforts, and community organizing programs in Seattle and Washington State. The organization runs legislative advocacy, art-based activism, mutual aid, and coalition-building campaigns aimed at holding fossil fuel corporations accountable, pushing public pension funds to divest, and winning progressive climate policy at the city, state, and federal levels.

Product overview

350 Seattle is a grassroots-led climate justice organization, not a commercial product company. The organization operates a collection of advocacy programs and campaigns including the Artful Activism Team, Make Polluters Pay Campaign, Climate Safe Pensions Campaign, 350 WA Civic Action Team, Community Resilience Program, Policy Action Team, Climate Grief & Empowerment Group, Aviation Team, and Seattle Green New Deal. These programs work in coalition to organize for climate justice through grassroots mobilization, legislative advocacy, art-based activism, community resilience building, and direct action campaigns focused on fossil fuel accountability, pension divestment, and progressive climate policy.

Differentiator

Problem solved

Functional benefit

Brands

• 350 Seattle: Grassroots climate justice organization

Products and services

• Make Polluters Pay Campaign Legislation campaign to make fossil fuel corporations pay for climate damages through policy advocacy at the Washington State level, including petition gathering and public pressure.
• Climate Safe Pensions Campaign

Quantifiable outcome

• Seattle City Council unanimously passed the Building Emissions Performance Standard after a year of 350 Seattle campaigning (2023)
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• 350.orgcoreStrategic or Co-development Partner350 Seattle is a local chapter of the international 350.org network, sharing the mission of addressing the climate crisis. The chapter maintains autonomy in local campaigns while benefiting from the broader network's resources, training, and global coordination.
• Washington State Education AssociationmajorStrategic or Co-development PartnerThe Washington State Education Association introduced a resolution at the Washington State Labor Council to form a table of unions to push the State Investment Board on climate change, as part of the Climate Safe Pensions campaign.
• Public Sector Unions and Retirement OrganizationsmajorStrategic or Co-development Partner350 Seattle is building relationships with public sector unions and retirement organizations whose members comprise the majority of Washington's pension fund beneficiaries. These alliances hold five of ten voting seats on the State Investment Board.
• House Our NeighborscoreStrategic or Co-development PartnerCoalition partner for social housing advocacy, particularly around Prop 1A and the Seattle Social Housing Developer (SSHD) created through I-135.
• Washington Against Nuclear Weapons CoalitionminorStrategic or Co-development Partner350 Seattle is a member of this coalition working to rebuild the anti-nuclear weapons movement.
• Climate Action FamiliescoreStrategic or Co-development PartnerCo-sponsor of the Climate Grief & Empowerment Group (now Coming Back to Life), recognizing that emotional support is critical for building community resilience and robust social movements.
• State Investment Board (SIB)majorOthersTarget of the Climate Safe Pensions campaign. 350 Seattle lobbies the SIB directly, attends public comments at their meetings, and advocates for divestment from fossil fuels and increased investment in climate solutions.
• Washington State Labor CouncilmajorStrategic or Co-development PartnerThe WA State Education Association introduced a resolution at the Labor Council to form a union coalition pushing the State Investment Board on climate change.

Scale indicators7 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Earthworks: Grassroots advocacy organization focused on fossil fuel extraction impacts and community-led organizing. Comparable in community-organizing methodology, frontline-community framing, and campaign-driven approach to climate issues.
• 350.org: 350 Seattle is explicitly a local chapter of 350.org, sharing the climate mission, brand, and global coordination. As the parent/affiliate network, 350.org is the most directly comparable peer organization.
• Sunrise Movement: Youth-led grassroots climate organization focused on movement building, electoral advocacy, and the Green New Deal. Highly comparable in community-organizing DNA and climate-justice framing, though oriented nationally rather than locally.
• Stand.earth: Climate-focused advocacy organization running corporate-accountability and policy campaigns on fossil fuels, forests, and supply chains. Comparable in campaign style (targeting fossil fuel corporations and pension funds), though operating nationally and internationally.

Regional players

• Washington Environmental Council: Washington State-wide environmental advocacy coalition working on climate, salmon, and environmental justice policy. Direct regional peer given shared Olympia legislative focus and complementary coalition-building model.
• Climate Solutions: Pacific Northwest-based climate and clean-energy advocacy organization focused on Washington State policy. Most directly comparable regional peer given overlapping geography, legislative advocacy focus, and clean-economy mission.

Broad incumbents

• Sierra Club: One of the oldest and largest U.S. environmental nonprofits with local chapters and active climate campaigns. Operates broadly across conservation, climate, and policy rather than specializing in grassroots climate justice, but the Sierra Club's local chapters are a structural peer for 350 Seattle's regional organizing.
• Friends of the Earth: Activist environmental advocacy network that pairs legislative work with grassroots campaigns on climate, fossil fuels, and corporate accountability. Comparable in advocacy DNA, though more globally oriented and broader in scope than 350 Seattle.

Emerging players

• Extinction Rebellion: Global grassroots movement using nonviolent civil disobedience and direct action to force climate action. Comparable in disruptive protest tactics (kayaktivism, marches) and grassroots mobilization, though organized as a decentralized movement rather than a 501(c)(3) chapter.
• Front and Centered: Washington State-based coalition of environmental justice organizations led by communities of color. Strongly comparable in environmental-justice framing, cross-movement coalition approach, and Pacific Northwest base.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/350_Seattle
• YouTubeyoutube.com/@350seattle9
• Facebookfacebook.com/350Seattle
• Instagraminstagram.com/350seattle
• TikToktiktok.com/@350.seattle

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 350 Seattle