Top LI Workplaces 2021: The Best Mid-size Businesess – Dan’s Papers


1. is an e-commerce site based in Melville that specializes in selling quality plumbing and heating equipment at low prices. It functions as a distributor service for tradespeople or a direct site for one’s personal home needs. The company has a staff of 200 employees that reach a wide range of customers. It promotes a positive company culture with excellent customer service. To learn more, visit

2. Nationwide Mortgage Bankers

Nationwide Mortgage Bankers is a Melville-used mortgage company that prides itself on “demystifying mortgages through transparency, education, and customer support.” Its trusted advisors work to ensure that customers are informed with the necessary information to make the best financial decision for themselves. From 2017 to 2020, NMB experienced over 16,000 percent growth. It has been ranked as the nation’s fastest-growing private mortgage bank for the past two years. To learn more, visit

3. Yardi Systems, Inc.

Melville-based Yardi Systems, Inc. was founded in 1984 and has been working to provide real estate businesses with quality property management software and services since its inception. It proudly employs more than 6,000 people throughout North America, Asia, Australia, Europe, and the Middle East. Yardi attributes its longevity to the work put into relationships between employees and customers, but also the relationships amongst employees. For more information, visit

4. Usdan Summer Camp for the Arts

Usdan Summer Camp for the Arts is located in Wheatley Heights, Long Island. The day camp accommodates kids in second through 12th grades for either four- or eight-week sessions. Usdan says “[its] goal is to instill in our community a desire and drive to contribute creatively to the world now and for the rest of their lives.” The camp caters to all types of creative expression, including acting, singing, writing, sculpting, painting, and dancing. To learn more, visit

5. Posillico

Farmingdale-based Posillico is a construction company that was founded in 1946 which serves customers throughout the tri-state area with the help of its staff of more than 400 employees. Posillico provides high quality services on public works projects while providing a quality of life for its employees. In April 2020, Posillico received an Experience Modification Rate of 0.67. The Experience Modification Rate is a metric that insurers use to calculate worker’s compensation premiums. The benchmark average EMR is 1.0. For more information, visit

6. North Atlantic Industries

North Atlantic Industries is a supply company for embedded electronics, power systems, and computing for the world’s leading organizations in military and aerospace applications. Its state-of-the-art manufacturing facility is located in Bohemia, N.Y. For more information, visit

7. Renu Contracting & Restoration

Renu Contracting & Restoration is an independent corporation located in Copiague, N.Y. It operates in the nonresidential building construction industry. It specializes in reconstruction, selective demolition, asbestos and lead abatement, and MEPs (mechanical, electrical, and plumbing services). Visit

8. Darby Dental Supply, LLC

Darby Dental Supply is based in Jericho, N.Y. and was ranked in the “top Long Island workplaces” in 2020 by Newsday. The company supplies dental equipment at reasonable prices to dental practitioners throughout the nation. Darby Dental Supply prides itself on providing a high quality of life for employees by ensuring that they feel supported through various wellness initiatives. Visit

9. Greenman-Pederson, Inc.

First founded in 1966 in Babylon, Greenman-Pederson, Inc. was started by three business partners and has since expanded to employ more than 1,500 people and earn in excess of $200 million in annual revenue. First specializing in construction, engineering, and design, the LI-based business has widened its talents to include aerial mapping, water projects, and more. Greenman-Pederson recognizes that the state of the environment is intertwined with the state of architecture and the quality of human lives. This is why it implements energy-efficient technology in its buildings, uses environmentally friendly resources to repair aging infrastructure, and acts to prevent and minimize damage presented by rising sea levels and extreme weather events. It is also revolutionizing urban planning by taking a people-focused approach that prioritizes pedestrians and public transport and minimizes potential vehicle crashes. Greenman-Pederson is also employee-owned, which contributes to the company’s entrepreneurial spirit and culture of excellence. To find out more, visit

10. Meadowbrook Financial Mortgage Bankers Corp.

From humble beginnings in the basement of founder and CEO Danny Nicolo, who was voted Best Boss on Long Island three  years in a row by the Bethpage Federal Credit Union’s and Long Island Press’ Best of LI, Meadowbrook Financial Mortgage Bankers Corp. has since expanded across the East Coast and is licensed in 17 states. The company provides home refinancing solutions that are individualized to the client, and is able to adapt to nearly any budget. It offers many options for clients, including a 0 percent down payment mortgage for veterans. Where other mortgage companies prioritize profitability above all, Meadowbrook Financial Mortgage Bankers prides itself on its unwavering commitment to prioritize human relationships both with clients and within the company itself. To learn more, visit

11. Grassi Advisors & Accountants

Since its conception in 1980, Grassi Advisors & Accountants has become one of the top 5 largest firms on Long Island and top 100 largest firms in America. This full-service tax, accounting, and business advisory firm has also expanded to locations in Jericho on Long Island, New Jersey, Massachusetts, Florida, Italy, and other locations. Its dedication to financial problem-solving has landed it in the top 25 “Best of the Best Firms” by INSIDE Public Accounting for 12 years. Its motto, “Strength in Certainty,” reflects the company’s drive to make sure its clients have the utmost confidence in the decisions they are making for themselves or their business, especially among unprecedented developments in public health, technology, and regulation. To find out more, visit

12. Spellman High Voltage Electronics Corp.

Spellman is the world’s leading independent supplier of high-voltage products for medical, industrial, and scientific applications. The Hauppauge company has spent more than 70 years specializing in the design, research, and development of HV power supply technology, and offers the broadest and highest-quality range of products in the industry. With more than 2,100 employees and several design, production, and repair centers across America, Europe, and Asia, Spellman has solidified itself as an international staple of the HV hardware industry. Thanks to its highly skilled design team and dedication to quality control, Spellman’s electrical engineering capabilities are unrivaled. As a fixture in the field of energy, the company understands the importance of sustainability. That’s why Spellman has enacted a corporate recycling program and reduced its average daily electricity and natural gas usages. To learn more, visit

13. Rooted Hospitality Group

This award-winning hospitality group owns and manages five successful Long Island restaurants in Suffolk County, including RHUM and AVO TACO. Its goal is to provide restaurant-goers with beautiful locations, good drinks, chef-driven food, and great company. Its attention to service and customer experience has solidified it as an industry leader. Along with its mission of bringing great restaurant experiences to Long Island, it offers its expertise in consultations with other restaurant and hospitality groups in need of advice, and supports initiatives to maintain the beauty of local environments and waterways. To find out more, visit

14. Heatherwood Luxury Rentals

Heatherwood Luxury Rentals has been committed to developing upscale residential communities since the 1950s. Its beginnings included constructing housing, building more than 5,000 homes across Long Island and two senior communities….


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