Josh has over two decades of experience in government relations representing both public and private entities in the legislative and executive branches of Washington State government. Josh is a Vice President at Gordon Thomas Honeywell Governmental Affairs (GTH-GA), the state's largest comprehensive governmental affairs firm. GTH-GA is information-driven and non-partisan.

20+ years

Nonpartisan staff for House members during development and passage of Washington's Forests & Fish law.

Josh has relationships with key legislators, statewide elected officials, agency staff and locally elected officials across the state.

Prior to joining the GTH-GA team, Josh spent nearly 10 years advocating for counties, serving as the Legislative Relations and Policy Director and General Counsel for the Washington State Association of Counties. Josh started working in Olympia in 1998 as nonpartisan counsel to the House of Representatives and served as Legislative Director for the Department of Fish and Wildlife. As Environmental Policy Director for the Washington Forest Protection Association he represented private forest landowners in the state's environmental regulatory system. He also assisted in Governor Locke's water reform efforts. Josh is a member of the Washington State Bar Association, graduate of Central Washington University and the Vermont Law School, and is a fourth generation Washingtonian. He lives in Olympia with his wife Karen.

Diana Carlen is a Vice President at Gordon Thomas Honeywell Governmental Affairs (GTH-GA), the state's largest comprehensive governmental affairs firm. GTH-GA is information-driven and non-partisan. Diana represents a broad group of clients before the state legislature, state agencies, and the executive branch.

6-10 years

Diana Carlen leads the firm's business and utility practice and has over 20 years of legal and legislative experience. Prior to joining Gordon Thomas Honeywell Governmental Affairs, Diana served as Leadership Counsel to the Senate Republican Caucus. In that role, she also served as the caucus attorney for the following policy issues: energy, natural resources, agriculture, land use, telecommunications and water issues. Prior to working for the Senate, Diana practiced law for several years focusing on land use and environmental issues and also served as a Law Clerk to Chief Justice Gerry Alexander of the Washington State Supreme Court. Diana represents several of the firm's business clients, public utilities, and port clients.

Patrick is a seasoned political professional with nearly two decades of experience in Washington State, Oregon, and Washington D.C., advising both Democrats and Republicans. From private and public sector lobbying to overseeing operations for a large state agency, Patrick's resume showcases an impressive depth in all things politics and government.

0-5 years

Patrick is a seasoned political professional with nearly two decades of experience in Washington State, Oregon, and Washington D.C., advising both Democrats and Republicans. From private and public sector lobbying to overseeing operations for a large state agency, Patrick's resume showcases an impressive depth in all things politics and government.

Before joining The Nichols Group, Patrick most recently served as Deputy Director of the Washington State Department of Agriculture (WSDA). For nearly a decade, Patrick rose through the ranks at WSDA holding key policy positions where he fostered deep relationships with legislators, government officials, and other stakeholders, culminating in being appointed Deputy Director in 2017.


  • Patrick led a state agency with approximately 1000 employees and a biennial budget of over $382 million. He supported the state's $11 billion agricultural industry by leading WSDA's Executive Team, covering food safety, disease prevention, pesticide management and commodity inspection. Notably, Patrick represented WSDA on the Forest Practices Board, where he worked to build bridges with the forest industry and the environmental community. Patrick also served as WSDA's first Tribal Liaison to the Governor's Office.

  • Patrick enjoys a bi-partisan record of legislative accomplishment in both Washington and Oregon, first serving as staff for Oregon State House Representative Deborah Boone (D-Cannon Beach), and later spending two sessions as the Policy Advisor for the Washington House Republicans, focusing on agriculture, energy, and the environment.

  • His role at The Nichols Group is a return to private sector advocacy. During his career in Oregon, Patrick represented a diverse range of clients spanning the health care, education, and renewable energy sectors as a contract lobbyist in Salem, and also served as the Director of Government Relations for the Oregon Association of Nurseries.


Known for his diplomatic approach, Patrick is recognized universally as a relationship and consensus builder. He earned a bachelor's degree in Political Science from Willamette University and is an avid outdoorsman.

Tim Schellberg is the Founder and President of Gordon Thomas Honeywell Governmental Affairs, an internationally known governmental affairs and government business market development firm. In addition to serving as the firm's managing partner, Tim maintains an active governmental affairs and market development practice, and provides strategic direction to the firm's four primary divisions: International, Multi-State, Federal, and Washington State. Under Tim's leadership, the firm has had impressive growth and success.

Tim is recognized nationally and internationally for his work to create and grow new markets by collaborating with business and government to implement dynamic public policy and technology based solutions. Tim has used over 25 years of professional experience, worldwide contacts and knowledge of global government institutions to actively lead legislative based projects in over 30 countries and within the United States.

Troy Nichols, owner of The Nichols Group Government Relations, brings nearly thirty years of policy and political experience in the Pacific Northwest. He first moved to Washington State from Oregon to become the state director of the National Federation of Independent Business in 2007. Two years later he became the Director of Policy Development for the Washington State House Republican Caucus. Before joining PBGR in 2017, Troy served as Executive Officer of the Olympia Master Builders for three years.

6-10 years

Troy's tactical approach to advocacy - for even the most unique public policy challenges facing Northwest industries - has been shaped over nearly three decades of policy experience in the Pacific Northwest. He specializes in providing strategic lobbying and consulting services, helping his diverse clients navigate Olympia politics and achieve their legislative, regulatory and state funding goals.

Prior to taking ownership of The Nichols Group Government Relations, Troy's broad experience gave him a unique perspective that can only come from first-hand experience over 25 years in campaigns, grassroots organization, trade association management, and serving as legislative staff:


  • As caucus staff liaison for the Washington House Capital Budget Committee, Troy helped to negotiate and pass several multi-billion dollar capital budgets during his tenure

  • As executive officer for a five-county trade association, Troy helped stop the association's decade-long decline in membership, balanced its annual budget for two years in a row, revamped several programs and racked up an impressive string of local policy and electoral victories; and

  • As Chief of Staff to the Oregon House Majority Leader and the Speaker of the Oregon House, Troy served as strategic counsel to state leaders on the most important and sensitive issues facing the state.


Troy believes in keeping The Nichols Group Government Relations a resourceful and nimble company so that its partners can work directly with clients on their specific policy challenges. A graduate of Western Oregon University, Troy also served on the City Council in Keizer, Oregon. He lives in rural Thurston County with his wife, Julie, a real estate attorney, and their two young children.

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