Multithread effectively and personalize outreach to convert deals faster
Elevate social presence and drive business growth from social media
Identify and prioritize high-intent leads, and improve sales effectiveness
Find and connect with ICP attendees, and improve event outcomes
Founded in 1892 by naturalist John Muir, the Sierra Club is the most enduring and influential grassroots environmental organization in the United States. It champions solutions to the climate crisis; works for just and equitable transitions to a clean energy economy; and strives to protect and restore wildlands, wildlife, and natural heritage for all to explore, enjoy, and protect. With millions of members and supporters, Sierra Club advances its mission through public education, grassroots activism, lobbying, and litigation.
Serves as the central hub for national campaign coordination, policy development, legal advocacy, communications, fundraising, and administrative operations supporting the organization's nationwide network of chapters and groups.
The headquarters is located in a LEED Platinum certified building, reflecting the organization's commitment to sustainability. It offers modern, collaborative workspaces designed to foster innovation and teamwork.
Passionate, mission-driven, and collaborative, with a strong emphasis on environmental justice and grassroots activism. Employees are dedicated to protecting the planet and empowering communities.
Represents the nerve center of one of the oldest and largest environmental organizations in the U.S., guiding national efforts to influence environmental policy and mobilize public action.
While primarily focused on the United States, Sierra Club engages in international advocacy and partnerships to address global environmental challenges. This includes work on responsible international trade, human rights related to environmental issues, protection of global forests, and combating climate change through its International Program and collaborations like Sierra Club Canada Foundation. They support global grassroots movements and advocate for policies that protect the planet and its inhabitants worldwide.
2101 Webster Street, Suite 1300
Oakland
CA
USA
Address: 50 F St NW, 8th Floor, Washington, DC 20001
To directly influence federal environmental policy, track legislative developments, and coordinate national campaigns impacting environmental protection across the country.
Address: 70 E Lake St, Suite 1500, Chicago, IL 60601
To address Illinois-specific environmental issues, promote conservation, advocate for clean energy, and engage local communities and policymakers in the Midwest region.
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
As of April 2025, Sierra Club' leadership includes:
Sierra Club has been backed by several prominent investors over the years, including:
Sierra Club has actively strengthened its executive leadership over the past year with strategic appointments aimed at enhancing its organizational capacity and campaign effectiveness. These additions reflect a commitment to dynamic leadership in pursuing its environmental mission.
Discover the tools Sierra Club uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Sierra Club primarily uses a standardized email format for its staff, typically combining the employee's first name and last name with a period in between. This allows for consistent and professional communication.
firstname.lastname@sierraclub.org
Format
jane.doe@sierraclub.org
Example
90%
Success rate
sierraclub.org • June 3, 2024
A federal court sided with Sierra Club and partners, revoking key permits for the proposed Alaska LNG export terminal due to failures in analyzing climate and environmental justice impacts. This decision underscores the critical need for thorough environmental reviews for fossil fuel projects....more
sierraclub.org • May 21, 2024
Sierra Club and partner organizations have formally notified the U.S. Environmental Protection Agency (EPA) of their intent to sue over the agency's failure to regulate PFAS (per- and polyfluoroalkyl substances) discharges from nine key industrial categories, aiming to protect communities from these harmful 'forever chemicals'....more
sierraclub.org • May 16, 2024
The Sierra Club's Ready for 100 campaign is urging the Department of Energy (DOE) to update national model energy codes to ensure new and renovated buildings are healthier, more affordable, and climate-friendly, accelerating the transition to clean energy in the building sector....more
See where a company’s workforce is located, by country or region.
View past and recent funding rounds with amounts and investors.
Understand company revenue estimates and financial scale.
Track active roles and hiring trends to spot growth signals.
Discover what a company offers—products, platforms, and solutions.
Get the company’s official SIC and NAICS classifications.
Analyze visitor volume, engagement, and top traffic sources.
Explore LinkedIn, Twitter, and other active social profiles.
Identify top competitors based on similar business traits.
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
Thousands of companies, including Sierra Club, are just a search away.