MassChallenge

TileGreen designs and manufactures concrete-alternative building products made from recycled plastics, targeting construction professionals and developers. The company focuses on repurposing plastic waste into premium materials via patent-pending technology, aiming to reduce emissions, minimize landfill use, and substitute traditional cement-based materials. By transforming plastics into durable construction products, TileGreen seeks to lower the environmental footprint of building projects while delivering performance suitable for a range of applications in the built environment.

EcoAct Tanzania is a manufacturer of eco-friendly building materials that recycles post-consumer plastic waste, packaging materials, and agricultural waste into durable plastic lumber. Using chemical-free extrusion and energy-conscious processes, the company creates timber substitutes that resist rot and termites and offer an affordable alternative to wood for construction and outdoor applications.

ComplyAI improves up the building permit process by leveraging workflow automation and artificial intelligence (AI) to ensure applications are comprehensive, correct, and simple to evaluate.

Plugin House is a low-cost modular home designed for two end markets: backyard residences in urban infill regions and institutional social housing used for humanitarian purposes.

Mister Bee pioneered wood-free bee hives by using concrete, an alternative material, to create Mister Bee Concrete Bee hives. Mister Bee also makes environmentally friendly bee hives that preserve trees.

AC3D is a US-based company developing vertically integrated 3D printing technology for the construction industry. Its mission is to address global housing needs, waste reduction, and climate change through automated additive manufacturing. By providing comprehensive solutions including printers, materials, software, and house designs, AC3D aims to make construction cheaper, greener, and more productive.

Cybrik is dedicated to transforming the engineering and construction industry, which faces challenges such as poor project outcomes and rising costs. By offering digital transformation services, the company focuses on enhancing operational efficiency through data strategy, process optimization, and artificial intelligence implementation. Cybrik develops innovative tools and methodologies that empower project teams with timely and relevant information, enabling them to make faster, more informed decisions. This approach not only improves cost and schedule performance but also helps organizations eliminate rework and stay competitive in a $13.5 trillion industry that struggles with flat productivity.

Every Shelter creates and designs sustainable shelters for refugees.

Ottan is a startup dedicated to the circular economy. It upcycles food and agricultural waste into sustainable bio-composite materials, offering durable and aesthetically pleasing alternatives to wood, stone, or acrylic surfaces for industries such as cladding, furniture, and housewares.

Mobilized Construction is a UK-based technology company that develops sensor-enabled data collection and analytics for road networks. Its fleet-mounted sensors attach to operating vehicles to collect road-condition data and ultra-high-frequency seismic readings, transmitting information automatically for analysis with minimal user interaction. The company provides a data platform and dashboard that combines predictive analytics, automated AI insights, and time-series road-surface data to monitor and forecast deterioration, support maintenance planning, and extend road life. By integrating data across fleets and construction activities, Mobilized Construction enables local governments to plan earlier, cheaper, and safer road repairs and to create micro-PPP programs for infrastructure projects. Founded in 2015 and headquartered in Cardiff, United Kingdom, the company aims to reduce costly road maintenance while improving safety and asset longevity.

GreenJams develops carbon-negative building materials for sustainable construction. Its flagship Agrocrete is a patented bio-concrete made from agricultural residues and mineral-based binders using alkali-activation chemistry, designed to deliver thermal insulation and cost savings relative to conventional concrete. The company also markets BINDR, an ultra-low-carbon alkali-activated binder that serves as a sustainable alternative to cement in mortars, plasters, and non-structural concretes. With manufacturing facilities in Goa and Vizag, GreenJams has completed projects across multiple Indian states and maintains a growing order pipeline, reflecting demand for high-performance, eco-friendly construction materials.

Neustark develops sustainable construction materials by capturing emissions generated in concrete production and converting them into climate-positive limestone, providing an alternative to cement and sand that are key cost drivers in concrete manufacture. The company also offers environmental services that recycle construction waste into fresh concrete, dismantling waste into carbonate powder and gravel components to enable reuse in new mixes. Together, these approaches support decarbonization and circularity in the construction sector by lowering embodied emissions, reducing material costs, and turning waste streams into usable construction material.

French startup TechnoCarbon develops CarbonFibreStone™, a revolutionary composite material designed to replace concrete, steel, aluminum, and other high-emission materials in construction, infrastructure, aerospace, and luxury industries. This patented technology aims to reduce air pollution and natural resource depletion.

Castory is a construction software company that provides a platform for progress tracking and documentation, aimed at enhancing efficiency and quality on construction sites. By utilizing a simple wearable camera, Castory captures images from the job site and automatically correlates them with floor plans. This technology allows for remote inspections at any time, facilitating the identification of issues within a collaborative environment. The software is designed to eliminate construction errors by automatically comparing visual data from the site with the blueprints, thereby detecting mismatches. This capability enables construction contractors to address defect detection and building quality challenges effectively, ultimately improving the overall construction process.

Iron Sky creates a medium for companies to access a large pool of specialized commercial contractors for project execution, and creates an easy way for commercial contractors to expand their businesses. The platform is a two-sided marketplace. Contractors are able to gain exposure to new projects and opportunities relating to their skills and expertise. Companies are able to post projects or required services and immediately have an extensive network of contractors to receive quotes from.

Silencions is a company focused on developing advanced acoustic technology aimed at significantly reducing noise pollution and vibration in various industries, including aerospace, automotive, construction equipment, and household items. Its innovative solutions utilize engineered, sub-wavelength periodic architecture to combat noise and vibration effectively. By leveraging the expertise of an interdisciplinary team of scientists and engineers with international backgrounds, Silencions provides unique noise and vibration suppression capabilities, opening up new opportunities for clients seeking to address these issues across diverse applications.

iWin, based in Manno, Switzerland, specializes in the development of an innovative photovoltaic venetian-blind shading device that is seamlessly integrated into insulating windows without affecting their design or functionality. Established in 2019, the company aims to enhance building sustainability, as the construction sector is responsible for approximately 40% of global CO2 emissions. The patented system not only generates renewable energy on-site but also effectively controls light and solar radiation, protecting buildings from overheating in summer. iWin’s product is customizable in size and color, durable, and requires minimal maintenance, boasting a payback period of less than ten years. The company has created its first working prototype and has formed partnerships with SUPSI and Pellini Group, a leader in integral venetian blinds. With a significant market opportunity, particularly in Switzerland where around 900,000 square meters of glass façades are installed annually, iWin is poised for growth in the sustainable building sector.

AirWorks specializes in automated mapping solutions for the construction industry. Founded in 2018, it leverages AI-powered technology to create maps from aerial data, streamlining the pre-construction process and serving major civil engineering companies.

Arqlite specializes in developing low-carbon materials, primarily a light artificial gravel derived from recycled plastics. This innovative product serves as an eco-friendly alternative for construction and gardening industries, offering superior insulation properties and significant weight reduction compared to conventional materials.

S.R.I specializes in providing traffic and highway engineering solutions. The company was founded in 2013 and is headquartered in Hertzlia, Israel.

The Tiny Heights, LLC is a Houston-based company founded in 2017 that focuses on developing a community of tiny homes, each under 1,000 square feet, to facilitate the transition to home ownership. By providing affordable housing options, The Tiny Heights aims to lower the barriers to entry for potential homeowners. The company offers a platform that allows users to explore various real estate properties through immersive three-dimensional videos, showcasing amenities such as fitness centers, community gardens, walking trails, social areas, and business centers. This innovative approach not only assists home seekers in finding suitable properties but also promotes a sense of community among residents.

Blue Zero Homes is a home building technology company focused on creating environmentally sustainable communities. It differentiates itself by utilizing 100% green, eco-friendly, and recycled materials in its construction process. The company employs a sustainable and repeatable building methodology, ensuring that each home is uniquely designed while maintaining the comfort and familiarity of traditional housing. With a blend of licensed and proprietary intellectual property, Blue Zero Homes aims to provide energy-efficient homes equipped with renewable energy resources, helping homeowners reduce their energy consumption and live more sustainably.

Founded in 2017, Nanogence specializes in developing novel material solutions for the construction sector. It focuses on creating synthetic, tailor-made materials that enhance performance and reduce carbon emissions in applications such as construction, pharmaceuticals, and mobility.

Concrete is the second most used consumed substance in the world but it is considered a boring, dull, simple product which is commonly used in its basic gray formulation. We help the design community to know all the amazing attributes and benefits that can be achieved by combining cement, water and aggregates making unique and complex forms. Designers, artists and architects can learn and use this product and open their minds into new products and solutions with our high quality and experience.

Founded in 2008, Alkemy Environmental specializes in recycling industrial waste streams into concrete aggregates. Its primary products are expandable lightweight aggregate, ultra-lightweight aggregate, and high-strength lightweight aggregate. The company also offers waste management services to its clients.

Briq.mx is a crowdfunding platform dedicated to financing real estate construction projects in Mexico. It enables individuals to invest in carefully vetted real estate ventures through its online platform. By conducting a thorough evaluation process, Briq.mx allows users to access a selection of investment opportunities reviewed by an investment committee. This approach not only facilitates the funding of various real estate projects but also assists users in building a diversified real estate portfolio.

VERSATILE is a technology company based in Los Altos, California, founded in 2016, that leverages machine learning and artificial intelligence to enhance construction processes. The company has developed an onsite data collection platform that provides detailed real-time analysis of construction site performance. Installed under the hook of cranes, this innovative technology captures and analyzes various data points, offering insights into materials, construction progress, and crane utilization. By delivering actionable information, VERSATILE enables construction managers to make informed decisions, improving project execution efficiency and reducing costs.

Modvion AB is a Swedish company founded in 2015 and based in Gothenburg, specializing in the design and development of modular wind power towers constructed from renewable composite materials. The company focuses on simplifying construction logistics and improving cost efficiency in the wind energy sector through its patented modular technology. This innovative approach enables the production of wind towers exceeding 120 meters in height while significantly reducing transportation costs, installation complexity, and the reliance on traditional steel structures. By leveraging engineered wood products, Modvion aims to enhance the economic viability of wind power projects, ultimately contributing to increased electricity production and more sustainable energy solutions.

Arqlite specializes in developing low-carbon materials, primarily a light artificial gravel derived from recycled plastics. This innovative product serves as an eco-friendly alternative for construction and gardening industries, offering superior insulation properties and significant weight reduction compared to conventional materials.

Converge is a technology company based in London, United Kingdom, specializing in hardware and software solutions for the collection, storage, and analysis of sensor data. The company develops transmitters that connect to various digital and analog sensors, converting them into wireless networked devices. Its software platform enables the storage, analysis, and visualization of data generated by these sensors. Converge's solutions are designed to facilitate data connectivity in sectors such as healthcare, where they allow doctors to manipulate and visualize patient information to tailor treatments effectively. Additionally, the company addresses the needs of the construction industry by providing automated data collection and analytics to replace manual monitoring processes. Through its innovative approaches, Converge is contributing to the advancement of wireless sensor networks within the industrial internet of things.

CleanFiber, LLC is a manufacturer of cellulose insulation materials designed for use in attics, walls, and floors of both residential and commercial buildings. Founded in 2013 and headquartered in Blasdell, New York, with an additional office in Buffalo, the company specializes in producing high-performance, carbon-negative insulation from recycled corrugated cardboard. This innovative approach not only promotes sustainability but also enables construction companies to build fire-resistant structures while maintaining cost competitiveness. CleanFiber has transitioned from its former name, UltraCell Insulation, LLC, in September 2018, and is currently focused on rapidly scaling up production to meet growing demand in the insulation market.

Bio Adhesive Alliance is a research and development organization focused on converting biomass and livestock waste management challenges in the agricultural sector into viable solutions for the construction industry. The team comprises scientists and industry experts who collaborate closely with academic institutions to address various aspects of the supply chain, including the collection, conversion, modification, characterization, and performance evaluation of biomass. The company specializes in producing bio-adhesives and bio-asphalt from sources such as swine manure, utilizing a liquefaction process that involves applying pressure and temperature, followed by filtration and post-processing. This innovative approach not only addresses waste management issues but also contributes to sustainable construction practices.

Netgen is a software company specializing in the design of engineering network systems for various construction sectors, including industrial, commercial, and residential projects. Its innovative platform automates the design process, significantly enhancing reliability and energy efficiency while accounting for multiple constraints. By reducing capital costs by up to 35% and design time by as much as 90%, Netgen addresses the challenges faced by traditional manual design approaches, which often rely heavily on the experience and intuition of designers and engineers. The software not only optimizes network routing based on various parameters but also identifies mistakes in manual designs and recommends energy-efficient equipment from an extensive database. This comprehensive solution caters to the increasing complexity of modern infrastructure, mitigating the high costs associated with human error in network design.

Zero+ deploys innovative thermoplastic structural panels to offer highly efficient low-cost thin-skin buildings. These offer a radical alternative to current building methodologies, economizing drastically on material, labor and energy in fabrication; providing highly resilient, low maintenance, high quality buildings; offering accurate, energy-efficient, elegant building envelopes. These can be built locally using no heavy site machinery, and offer earthquake, hurricane and flood-proof housing.

Rate It Green is a directory and network platform dedicated to the green building industry. It facilitates connections between individuals and companies seeking green building products and services, while also assisting manufacturers and service providers in enhancing their reputation and reaching new clients. By offering a peer-review directory and resource network, Rate It Green promotes the sharing of information and expertise among green builders and companies, supporting the growth of sustainable practices in both residential and commercial projects. The platform aims to increase access to reliable resources, foster long-term client and vendor relationships, and contribute to reducing the environmental impact of the built environment. Individual memberships and basic company listings are available at no cost, making it accessible for all stakeholders in the green building sector.