Park Slope Office Spaces for Lease in Brooklyn

Matthew DeRose is the Co-Founder and CEO of Nomad Group, a leading commercial real estate firm specializing in helping high-growth companies find, build, manage, and operate office space across New York City. As the driving force behind Nomad Group's strategic vision, Matthew has been instrumental in evolving the firm from a traditional brokerage into a full-service commercial real estate partner. Under his leadership, the company has completed over 300 tenant buildouts and leased more than 2 million square feet across NYC's most dynamic neighborhoods. Matthew's relationship-first philosophy and deep market expertise in areas like NoMad, Flatiron, and SoHo have made Nomad Group a trusted partner for startups, enterprise companies, and landlords alike.

William Janetschek is the Co-Founder and Chief Operating Officer of Nomad Group, where he oversees the day-to-day operations that power the firm's full-service commercial real estate platform in New York City. William plays a central role in ensuring that Nomad Group's end-to-end solutions — from brokerage and construction management to facilities and asset management — are delivered seamlessly and on time. His operational expertise has been key to scaling the company's in-house infrastructure, including the innovative Flex by Nomad service model. William's commitment to transparency and collaboration reflects the firm's core values and helps clients across Union Square, Williamsburg, Grand Central, and beyond receive an unmatched real estate experience.

Adam Justin is a Co-Founder and Principal at Nomad Group, bringing deep expertise in commercial real estate to his role as a key driver of the firm's client relationships and deal-making capabilities in New York City. As a founding member of the team, Adam has helped shape the company's reputation for authenticity, transparency, and client-centric service across NYC's high-growth neighborhoods. He works closely with startups, technology companies, and enterprise clients to identify strategic office space solutions that support growth and culture. Adam's hands-on approach and intimate knowledge of the NYC market — from SoHo to the Flatiron District — make him a trusted advisor for companies navigating complex leasing decisions.

David Greene serves as a Principal at Nomad Group, where he brings strong commercial real estate acumen and a client-first mindset to every engagement. Based in New York City, David works with high-growth companies across technology, fintech, and other sectors to identify and secure the right office space for their evolving needs. His expertise spans the full real estate lifecycle, from initial site selection and lease negotiation to buildout and ongoing space management. David is known for his strategic thinking, market knowledge across neighborhoods like NoMad, Flatiron, and Williamsburg, and his dedication to building long-term relationships that go beyond a single transaction.

Megan Gallagher is a Director at Nomad Group, contributing her expertise in commercial real estate to help clients across New York City navigate the leasing process with confidence and clarity. In her role, Megan manages client relationships and oversees key transactions, ensuring a smooth and transparent experience from initial search through to space delivery. She works with a diverse portfolio of clients, including scaling startups and established enterprises, across neighborhoods such as Union Square, SoHo, and Grand Central. Megan embodies Nomad Group's commitment to being authentic and client-centric, consistently going above and beyond to ensure every client feels supported throughout their real estate journey.

Nicholas Hein is a Director at Nomad Group, playing a vital role in guiding clients through the complexities of commercial office leasing in New York City. With a deep understanding of NYC's dynamic real estate market, Nicholas works with high-growth companies to identify spaces that align with their business goals, team culture, and budget requirements. He manages transactions across key neighborhoods including NoMad, Flatiron, and Williamsburg, ensuring clients benefit from Nomad Group's tech-driven approach and personalized service. Nicholas is passionate about delivering a simplified, enjoyable leasing experience and takes pride in building lasting partnerships that support his clients' long-term success.

Lauren Peaks serves as Senior Marketing Director at Nomad Group, where she leads the firm's brand strategy, content development, and marketing initiatives across New York City's commercial real estate landscape. Lauren is responsible for communicating Nomad Group's unique value proposition — combining tech-driven tools with a deeply human touch — to clients ranging from early-stage startups to enterprise companies. She plays a key role in positioning the firm as a trusted, relationship-first commercial real estate partner in NYC's most sought-after neighborhoods. Lauren's creative vision and strategic approach help amplify Nomad Group's mission of building a community where lasting relationships come first.

Calvin Bruwelheide is an Associate at Nomad Group, supporting the firm's commercial real estate operations and client service efforts across New York City. In his role, Calvin assists in identifying office space opportunities, conducting market research, and helping clients navigate the leasing process from search to signature. He works alongside Nomad Group's experienced team of principals and directors to deliver the firm's signature end-to-end real estate solutions to high-growth companies in neighborhoods such as NoMad, SoHo, and the Flatiron District. Calvin brings energy, attention to detail, and a commitment to the firm's client-centric values to every project he undertakes.

Kyle Tsang is the Marketing Coordinator at Nomad Group, supporting the firm's marketing and communications efforts to help elevate its brand presence in New York City's commercial real estate market. Kyle assists in executing digital campaigns, creating content, and coordinating marketing activities that reflect Nomad Group's commitment to transparency, authenticity, and exceptional client experiences. He works closely with the senior marketing team to ensure the firm's messaging resonates with high-growth startups, technology companies, and enterprise clients across NYC's premier office neighborhoods. Kyle's contributions help Nomad Group maintain its reputation as a forward-thinking, relationship-driven commercial real estate partner.