At Hollaway Environmental + Communications Services, we promote a culture of ‘yes,’ ‘I can,’ and ‘I will.’ From this place of dedication and creativity, we deliver exceptional results.

– Leslie Hollaway, CEO & Owner

Your Team of Qualified Experts

At Hollaway Environmental + Communications Services, our team boasts zero learning curve. Our multi-disciplinary team of experts collaborates every day to find innovative solutions that make a difference for our clients and the projects we serve.

Why the Work We Do Matters

We make a difference in the work that we do. By effectively incorporating community engagement and environmental considerations into project planning and development, we help create win-win scenarios for our clients and the communities they serve. This purpose drives us every day.

Leslie Hollaway

Chief Executive Officer and Owner

Leslie Hollaway is the visionary behind Hollaway Environmental + Communications Services and has spent the last decade focused on the health and viability of the company. Leslie works to promote the company’s core values while leading the team with a commitment to professionalism. Supported in all endeavors by her team at Hollaway, Leslie is responsible for providing strategic direction to the team and creating a collaborative vision for success. Leslie has extensive experience in the environmental and public communications sectors and has advised clients for large-scale infrastructure and coastal planning projects.

Claire Garvin

Chief Operating Officer

Claire Garvin is an experienced Environmental Consultant with over 15 years in management, business development, operations, and leadership roles. Currently, as the COO at Hollaway, she establishes and implements procedures and policies to promote a strong culture and vision and oversees operations to ensure the successful growth of the company. Her capabilities include state and federal agency coordination, NEPA compliance, environmental permitting, and public involvement.

Jennifer Smith

Chief People Officer

Jennifer Smith is our Chief People Officer and is an SHRM Certified Professional. She has been with Hollaway Environmental + Communications Services since 2016 and has over 13 years of Administrative, Human Resources, and Financial experience. She is our in-house HR practitioner that provides the Hollaway team expertise and support in everything from performance management to HR compliance. Her priority is to build and foster an inclusive and diverse culture that aligns with Hollaway’s vision and values.

Trevor Pattillo

Financial Manager

Trevor Pattillo serves as the Financial Manager after receiving his MBA from the University of Houston, Downtown and has been with Hollaway Environmental + Communications Services since 2016. He leverages the skills he learned while achieving his degree to provide financial expertise to company leadership as well as administer the day-to-day management of company finances. His goal is to continue the financial stability and growth of the company while maintaining alignment with Hollaway’s strategic plan.

Ally Altemose, PWS, ENV SP

Director of Environmental Services

Ally Altemose is the Environmental Team Lead at HECS. She is a Professional Wetland Scientist with over 14 years of experience delineating and permitting Waters of the United States. She has managed many small- and large-scale development and infrastructure projects. She has a broad range of experience with plants and wildlife surveys. She holds a Texas Parks and Wildlife Department Scientific Collection Permit for freshwater mussels statewide and has conducted numerous rare, threatened, and endangered plant surveys throughout Texas.

Connor Stokes, ENV SP

Communications Specialist and Project Manager

Connor Stokes has over six years of communications experience including project management, project research, report authorship, video production, stakeholder outreach, public meeting/hearing planning, and quality assurance review. He has played an integral role in many client projects, including the Texas General Land Office’s Coastal Resiliency Master Plan, the Coastal Texas Study led by USACE and Texas General Land Office, and crisis communications in support of the Harris County Flood Control District in the wake of Hurricane Harvey.

Greg Sevcik

Creative Director

Greg Sevcik has over 14 years of experience as a professional graphic designer, developing print collateral, branding, and motion graphics.  He has expertise in developing various technical and educational communication tools for public involvement activities. He is also responsible for the development and implementation of consistent and uniform templates for various project-specific newsletters and mail-outs.  His graphic design and video production work for client projects has won multiple Communicator and Telly Awards.

Tara Davis

Creative Services Team Lead and Marketing Specialist

Tara Davis has over 7 years of experience working in the private sector servicing Federal, non-governmental, and private organizations. She has work experience with creating and implementing marketing plans, which include social media strategy, collateral creation, logistics for tradeshows, and metric creation for companies. At HECS, she supports document creation, assisting with editing, coordinating large and small scale and public meetings, and general support of Hollaway team projects and marketing and project teaming efforts.

Kasey Clarke, WPIT

Environmental Scientist

Since joining HECS, Kasey Clarke has gained a wide variety of experience in environmental services including wetland delineations, threatened and endangered species surveys, oyster surveys, freshwater mussel surveys, environmental inspections, stormwater monitoring, and Phase I Environmental Site Assessments. She has supported an array of projects including federal and state permitting, private development, mitigation, transportation, and dredging. She brings with her a strong background in avian biology and behavior.

Rachel Massey

Communications Specialist

Rachel Massey has four years of experience in public involvement and community outreach, which includes, developing mailing lists, presentation materials, managing public engagement meetings. From design and construction projects to conceptual marketing and creating public awareness, she works with the communications team on large and small-scale projects within the realm of public awareness and outreach, while simultaneously in compliance of environmental guidelines and constraints with projects that require nothing less.

Rosaura Martinez

Communications Specialist

Rosaura Martinez is a bilingual professional with more than 5 years of experience in public relations, direct marketing, communications, and public engagement. At Hollaway Environmental + Communications Services, she works as a Communications Specialist providing support for both public and private clients and for large scale infrastructure and transportation projects.

Molly Lenihan

Environmental Scientist

Molly Lenihan has gained experience in a wide range of environmental services during her time with HECS. This includes Phase I Environmental Site Assessments, wetland delineations, and threatened and endangered species assessments. She has supported the HECS team in a variety of projects, including private development, public works, biological surveys, and mitigation. She brings a background in ecology and Texas native species with her.

Thomas Mumford

Production Specialist

Thomas Mumford supports the Hollaway Environmental + Communications Services team as a Production Specialist. He has more than eight years of experience in audio recording, mixing, and mastering, as well as more than ten years in live sound reinforcement and video production. A jack of all trades, he provides all-around support to our clients by providing an excellent level of service for every project that he has the opportunity to serve.

Brittany Little

Communications Specialist

Brittany Little supports the Hollaway Environmental + Communications Services team as a Communications Specialist. She brings with her a strong skillset in strategic planning, relationship building, and development of communications documents. As a Communications Specialist, she provides various communications support for diverse projects.    

LaDaja Dunn

Executive Administrative Assistant

LaDaja Dunn supports the Hollaway Environmental + Communications Services team as an Executive Administrative Assistant. She brings with her the ease of adaptability, organizational skills, as well as previous administrative and marketing experience to the company. As an Executive Administrative Assistant, she helps lead the efficient operation of the office, assists in invoicing, marketing efforts, and provides day-to-day support to the Executive Team.

Elizabeth Bozeman

Managing Technical Editor

As a  Managing Technical Editor, Elizabeth Bozeman has experience with planning, organizing, and executing a variety of data-driven projects. She has ten years of experience in technical writing for proposals, marketing, social media, copy editing, and résumé writing. She has eight years of oil and gas experience. She provides editing insight and recommendations to ensure that every document she undertakes is written and formatted to the highest standard.

Mariah Najmuddin

Communications Specialist

Mariah Najmuddin is a bilingual professional and former teacher with over six years of experience in community engagement, event planning and communications. This includes developing strategic digital marketing campaigns, data analysis, and content creation as well as planning and executing numerous in-person and virtual stakeholder meetings. With a master’s degree in Public Policy, she leverages her knowledge of environmental policy and refined communications skills to support both private and public clients.

Jenny Lam

Environmental Scientist

Jenny Lam has over nine years of experience in managing and leading environmental and natural resources projects for public and private entities within Texas, Louisiana, Mississippi, and Arkansas. Her expertise includes National Environmental Policy Act (NEPA) studies, U.S. Army Corps of Engineers coordination and permitting, waters of the U.S. delineations and verifications, threatened and endangered species assessments, and stream conditional assessments. In addition to her extensive background, she has ArcGIS and technical writing capabilities.

Taffeta Burleson

Associate Environmental Scientist

Taffeta Burleson supports the Hollaway Environmental + Communications Services team as an Associate Environmental Scientist. She has gained experience in a wide range of environmental services during her time with HECS, including Phase I Environmental Site Assessments, wetland delineations, and threatened and endangered species assessments. She supports an array of projects including mitigation, transportation, and municipal infrastructure. She brings with her a strong skillset in field research, data analysis, and GIS mapping.

Carol Hollaway

Sr. Economist

Carol Hollaway has over 40 years of experience in water resources planning, economic analysis, and social impact assessment. She has worked for the USACE, and the Institute for Water Resources (IWR) where she achieved subject matter expertise in a variety of economic evaluation techniques, cost-benefit analysis, nonstructural measures for storm risk reduction, social impact assessment, and water resource planning policy and practices. She has received national recognition for her contribution to flood risk management and water resources planning.


I appreciate the professionalism each of you brings to the table.

Greg Phipps, P.E. | J.A. Costanza & Associates


This firm has demonstrated professional and efficient management of projects, exhibited timely completion of projects as scheduled and budgeted, and exhibited knowledge and experience working with state and federal agencies.

Yu-Chu Su, PhD, P.E. | Lockwood, Andrews & Newnam


They are experts in overseeing the production of quality, biologically and technically sufficient documents and reports.

Dwayne Rogers | Harris County Engineering Department


Your team were amazing partners in planning and execution of our event.  This was the best event that I have ever been part of.

Auggie Campbell | Association of Water Board Directors