Top Tech Startups in Brooklyn in 2025

At Prose, we don’t believe in “one-size-fits-most.” We create custom hair care that’s inclusive to all hair types, needs and preferences. Each of our hair care products is customized to a person’s hair needs based on the results from an online consultation. The individual data is processed through a proprietary algorithm and made-to-order in the Prose lab using natural active ingredients. Marrying emerging technologies with the best in beauty, Prose is truly creating something special.

Slice is the easiest way to order authentic local pizza. We serve the $40 billion U.S. pizzeria market in two ways: by providing a pizza-centric mobile and web ordering experience for consumers, and by empowering local restaurants with technology that grows their business and helps them compete with Big Pizza. Can you imagine what a local pizza shop could achieve with the resources of Domino’s?

Map and manage global flows (cargo, data, money, etc.) using machine learning -- while preserving data privacy, data sovereignty, and data security.

Casper (casper.com) is a global sleep company that launched in 2014 with an obsessively engineered, outrageously comfortable mattress sold directly to consumers. Its critically acclaimed sleep surface was developed in-house, has a sleek design, and is delivered in a small, "how did they do that?"-sized box. The company is one of the fastest-growing consumer brands of all time, and its product line has expanded to include sheets, pillows, a matching foundation, and a dog mattress. Casper was named one of Fast Company's 50 Most Innovative Companies in 2017, and its eponymous mattress was crowned one of TIME Magazine's Best Inventions.

Ori was launched out of the MIT Media Lab to respond to the challenges of urban density. Ori designs spaces that are more flexible, sustainable, affordable and desirable. We have developed technology and design systems and products that create intelligent and responsive spaces. Our goal is to empower people to live large in a small footprint. We are tackling a big, complex problem. But we are an intrepid group with shared values focused on a mission to vastly improve urban living both in terms of experience and affordability. We all share the audacious belief that through creativity, ingenuity and perseverance we can bend the arc of an industry to improve lives.

We keep your home stocked with the essential stuff you need but don’t want to think about... with zero waste! We are building the future of commerce in cities. Our vision is to create the most efficient, scheduled, last-mile logistics network, and the only optimized closed-loop (read: zero-waste) supply chain. By achieving this, we can make convenience sustainable and sustainability convenient for greener neighborhoods and happier neighbors.

NineDot Energy is a leading community-scale, clean energy storage developer with a growing portfolio of urban projects across a range of technologies. We create innovative energy solutions that support a more resilient electric grid, deliver economic savings, and reduce carbon emissions. Our current focus is on the New York City area which is moving fast in deploying urban clean energy solutions.

Buck Mason is a modern American Brand founded in 2013 by Sasha Koehn and Erik Allen Ford, who were neighbors in Venice, California. At the heart of everything we do is the laid back California ethos of easy living, quality, and simplicity. We are classic. We look to past icons and interpret them with honesty and loyalty. We also look ahead and understand the modernity of future classics and the responsibility of our place amongst them. We champion anyone striving to be better and are honored when we can be a part of it. We claim simple truths and keep our promises. We truly have our customers’ best interests in mind, knowing damn well the value of a hard-earned dollar. We believe we will never be perfect but know that greatness lies in the search to be so. We make clothes. We love what we do. Initially, they set up shop in a 350 square foot garage off Abbot Kinney Boulevard. Sasha built the website and Erik created the brand’s first collection of jeans and tees. Obsessed with quality, they worked closely with a local family factory to create small batch production runs, crafting each piece using old school manufacturing techniques combined with modern technology. Buck Mason makes fashion less complicated, building each piece to last beyond a single season. Each design is a riff on an iconic American staple, combining to make a useful and effortless wardrobe. Consistency in fit, fabric and quality guide this hands on approach. Much of the product is made in the USA, where you can often find Sasha and Erik on the factory floor.

Medspas are booming, and are often a path for individual nurses to become business owners. We believe that’s a good thing for them, their communities, local economies, and clients. We unlock the entrepreneurial opportunity in aesthetics for those with the moxie to take the leap. Moxie gives aesthetic entrepreneurs everything they need to successfully compete (and win) against even the biggest medspa chains—including a strategic partner, a purpose-built platform, and unmatched pricing power. Today, Moxie has helped more than 250 aesthetic entrepreneurs—90%+ of which are female first-time business owners—successfully launch, run, and grow their own independent medspas. We are a healthy, grown-up but early-stage company, and operate remote-first. Learn more: joinmoxie.com

Madison Reed (madison-reed.com) is an e-commerce start-up with a team of 180+ rock stars in San Francisco. We’re revolutionizing the $50B hair care market using technology (web, mobile, tablet, social) to radically innovate the user experience and business model. Madison Reed is headquartered in SF and backed by top-tier venture capital firms Norwest VP, True Ventures, Maveron and Shea Ventures.