Since 1978, The Nature Conservancy has protected more than 450,000 acres in Tennessee. Along the way, the Conservancy helped to create or expand 31 state parks and natural areas, 20 state Wildlife Management Areas, and nine national parks, forests and wildlife refuges in Tennessee, in addition to establishing our own system of nature preserves.

The Nature Conservancy works across the entire state of Tennessee, with a main office in Brentwood, TN. Key areas of focus include forest health, protection of freshwater resources and aquatic life, safeguarding caves and cave creatures, and scientific support for conservation.


Chroma Energy Group provides solar engineering, procurement and construction services across the Southeast, Midwest and beyond. With a team of more than 14 solar photovoltaic (PV) experts, Chroma Energy Group provides contracting services for utilities, government, industrial and commercial businesses and is committed to high standards of workmanship, cost-effective construction and quality products.

Founded in March 2023 by Ed Rottmann, Chroma Energy Group focuses on solar installation with an eye toward future growth into other renewable energy sources and products, such as storage and other clean technology initiatives.

CO.LAB is a 501c3 nonprofit based in Chattanooga, TN that accelerates early-stage startups in the sustainable mobility space.

We believe that your venture can make the world a cleaner, smarter, more sustainable place – if provided with the right resources. Our organization has the connections, means, and motivation to help you move the needle of progress forward.

Hitachi Zosen Inova (HZI) is a global cleantech company operating in energy from waste (EfW) and renewable gas. Our roots are in Switzerland, where we were established in 1933 as “L. von Roll Aktiengesellschaft”, later known as Von Roll Inova. Since 2010 we have been part of the Hitachi Zosen Corporation, one of Japan’s largest industrial and engineering firms and a longstanding partner and licensee of Von Roll Inova. To this day we foster the spirit of a traditional Swiss company combined with the know-how and economic strength of an international group.

We have been building and maintaining plants for almost 90 years. We develop projects with our clients and then draw on our experience as a general engineering, procurement and construction contractor to deliver on their behalf complex turnkey plants and system solutions for thermal and biological EfW recovery, gas upgrading and power to gas. We also offer comprehensive, expert and reliable after-sales services for operators of existing plants. Quality is our greatest asset. Our unconditional endeavours to achieve this quality, together with our long experience and honest commitment, are what we pass on to clients.

The challenge of finding the best possible solutions for our clients, again and again, is what drives us. We work with them closely to find and develop integrated solutions to their individual needs and requirements – solutions based on a blend of proven technologies and passionate innovation that meet the highest quality, efficiency and environmental protection standards. This is why we’re among the market leaders in our field: We love what we do.

Piedmont Lithium is developing a world-class integrated lithium business in the United States, enabling the transition to a net zero world and the creation of a clean energy economy in America. Our location in the renowned Carolina Tin Spodumene Belt of North Carolina, the cradle of the lithium industry, positions us to be one of the world’s lowest cost producers of lithium hydroxide, and the most strategically located to serve the fast-growing US electric vehicle supply chain.

The unique geographic proximity of our resources, production operations and prospective customers, places us on the path to be the most sustainable provider of lithium hydroxide in the world and should allow Piedmont to play a pivotal role in supporting America’s move to the electrification of transportation and energy storage.

Avadain is unleashing the Graphene Revolution with its globally patented, breakthrough technology to manufacture large, thin and nearly defect free graphene flakes using a safe, environmentally friendly process. Graphene is about to supercharge the transformation to a clean, advanced energy economy.

Graphene is one of the most disruptive materials of all time. It’s the lightest, strongest, thinnest, best thermal and electricity-conducting material ever discovered. A tiny amount of Avadain’s graphene can substantially improve hundreds of advanced energy products. For example, replacing electrode conductive material in supercapacitors and EV batteries with a tiny amount of Avadain’s graphene enables faster charging/discharging, 100% depth of discharge and increased power density. 

Backed by Panasonic since 2017, Memphis-based Avadain uses a simple, scalable and cost-effective process – optimized electrochemical exfoliation and expansion – to convert graphite into high quality graphene flakes. When produced in industrial volumes at nominal cost, Avadain’s graphene flake manufacturing is currently being upscaled to mass production to meet the need of >80% of a rapidly growing multi-billion dollar market.

Avadain plans to license its technology to advanced materials manufacturers and companies with a mission-critical need for high quality graphene flakes, including renewable energy, e-mobility, defense, and space exploration.

Contact: Brad Larschan



NovoHydrogen is a renewable hydrogen project developer with a focus on North America. Novo utilizes the process of electrolysis, splitting water into hydrogen and oxygen, to provide its customers across the industrial, transportation and power sectors with zero carbon hydrogen. We use a flexible production and delivery model and can produce hydrogen and oxygen directly onsite at our customer’s facilities or have it piped/trucked in from our local production facilities. Our customers pay for the hydrogen on a $/kg basis and we take care of the capital and development costs

Eonix is an early stage energy storage company. Our mission is to dramatically increase the energy density of next-generation energy storage technologies. ​Born from the SUNY College of Nanoscale Science and Engineering in Albany, New York in early 2013, the primary focus of Eonix is the development of advanced ionic liquid electrolytes to be used in ultracapacitors.

Florim USA in Clarksville, TN is one of the largest floor and wall porcelain tile manufacturing plants in North America. Established in 2000, the facility spans over 1 million square feet of covered space and produces over 100 million square feet of tile annually. Our core principals are product innovation, quality, design and ecological mindfulness. With several global and national environmental accreditations and certifications, Florim USA is the largest manufacturing facility in the world to achieve the WELL Health and Safety Rating. We source raw materials within a 500-mile radius of the facility, achieving local independence and strength in the manufacturing process. Produced for a variety of channels, Florim USA’s tile is represented in over 2500 stores nationally. Milestone is the manufacturer’s distributed brand.

HVAC Design Partners is a dynamic alliance between Paul Yankie and Jeremy Begley.

With 20 years of combined experience between them in HVAC Design, Test and Balance and Green Building Verification, the partnership was formed to meet the ever-changing HVAC design and commissioning needs of the residential and light commercial construction market. Our specialization is in design for high performance and low load buildings. We have a certain set of skills that allows us to move you fluidly and rapidly through HVAC Design compliance in green building programs.

SkyNano is a Tennessee-based clean energy tech start-up with a mission to utilize carbon emissions as chemical feedstock to manufacture high value functional materials.

Advanced carbon additives are supermaterials with some of the most impressive mechanical, thermal, and electronic properties of any known material.

However, traditional manufacturing techniques require high vacuum and high pressure gas flow systems, which are expensive and suffer from a lack of scaleability, resulting in a high price for advanced carbon structures.

We focus on a low cost manufacturing technique of high value carbon materials, using only inexpensive materials, electricity, and carbon dioxide as direct inputs.

Using patented technology developed at Vanderbilt University, our technique overcomes cost and scaleability limitations associated with traditional manufacturing techniques, while also giving commercial viability to carbon conversion technologies through the introduction of a high-value secondary material produced from greenhouse gas inputs.

Our technique relies on electrochemistry, rather than solely catalysis, and results in a highly efficient process to convert atmospheric carbon dioxide into useful functional nanomaterials.

Clearloop was founded by three Tennesseans—including former governor Phil Bredesen—who want to make sure that the innovation and benefits of renewable energy reach all communities around our country equally, starting with the communities in our own backyard that are getting left behind.

We’re taking the lesson from our background in politics where individual actions looped together can be a powerful force. Clearloop amplifies the power of brands by turning individual everyday purchases into clean energy.

We fundamentally believe that product-by-product we can help clear out the carbon from the U.S electricity grid by 2050. Together we can do it.