“A Voice in Washington, D.C. Assures Your Views Are Heard”
For over 40 years, ENS Resources, Inc. has delivered federal policy and funding wins for public and private sector clients before Congress and the Executive Branch — across environment, energy, public health, infrastructure sectors.
Our clients rely on us to deliver consistent results. Since 1986, ENS has turned federal policy expertise into tangible funding and regulatory wins.
$480M+
Federal assistance secured for clients
8
Administrations engaged since 1986
30+
Policy Forums, Fly-Ins, and Briefings Managed
400k – 5.5M
Service area populations represented
25
Years protecting & recovering communities from natural disasters
41
Congressional sessions of targeted public policy engagement
Who We Are
Over Four Decades of Legislative and Regulatory Advocacy to Improve Economic Prosperity & Quality of Life
ENS Resources, Inc. was founded in 1986 by Eric Sapirstein following his leadership at the U.S. Environmental Protection Agency. For over four decades, the firm has focused on legislative and regulatory affairs consulting for public agencies, municipalities, cities, and regional coalitions.
This focus is what sets ENS apart from large, general-purpose DC firms. What began as a West Coast-focused practice now represents clients nationally, and clients work directly with the principals who do the work.
Eric SapirsteinFounder & PresidentDavid R. FrenchSenior Vice PresidentSarah SapirsteinExecutive Vice PresidentRoger CockrellSenior Vice President
ENS works across five interconnected service areas, from direct federal advocacy to strategic counsel, all grounded in an exclusive focus on public infrastructure, economic development and environmental improvements. We turn your federal priorities into policy and regulatory successes.
ENS represents public drinking water and wastewater agencies, municipalities, cities, and regional coalitions, and increasingly partners with technology companies and organizations in adjacent policy areas. Our reach has grown from the West Coast to a national footprint. If your organization depends on federal policy and funding decisions, you will recognize your priorities in ours.
Federal lobbying isn't mysterious — it's a structured process for moving a client's priorities through Washington. Here's what that looks like in practice:
Map the landscape. Who on the Hill controls the relevant committees? Which agencies write the rules? Where is the money?
Build the case. Translate the client's technical, policy, and financial needs into language that resonates with policymakers.
Open the right doors. Arrange meetings with congressional staff, committee members, and agency officials who have direct influence, and build coalition-wide support.
Track the legislation. Monitor appropriations, bills, authorization language, and rulemakings that could help or hurt a client's priorities.
Push at the right moment. Timing in Washington is everything. A lobbyist knows when to apply pressure and when to wait.
That's what ENS does. For every client, on every issue.
How is ENS Resources, Inc. different from other D.C. lobbying firms?
We're small by design — no rainmakers handing you off to junior staff. When you hire us, you get the principals: every meeting, every call.
We don't carry conflicting clients. If we represent you on a policy matter, we're not quietly working the other side. That's rare here.
And we don't bill you for relationship maintenance dressed up as strategy. You'll always know exactly what we're doing, why, and what it's supposed to produce.
Washington has hundreds of firms that can get you a meeting. ENS gets you a result.
What would ENS do as your federal lobbyist?
ENS works on federal funding, water quality, natural resources, disaster mitigation and community resiliency, critical infrastructure, local government, and federal regulatory navigation.
What types of organizations does ENS Resources, Inc. represent?
ENS represents clients at the intersection of water, energy, public health, environment, infrastructure, and public service.
By sector, our clients include:
Public water and wastewater treatment agencies, from small districts to large regional authorities
Cities and counties pursuing federal funding and policy outcomes
Water-technology companies developing treatment, monitoring, and smart-water solutions
Trade Associations representing utilities, municipalities, and water-sector industries
Across every sector and issue, our role is the same: translate technical and financial priorities into outcomes Congress and federal agencies can act on.
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Work directly with the principals who have spent over four decades inside federal water policy.
