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MD
Since 1947, Suburban has made the furnaces, water heaters and cooking appliances that bring the comforts of home to RVs, manufacturing from its longtime base in Dayton, Tennessee. The company began with gas space heaters and entered the RV market after adapting a greenhouse heater for 12-volt motorhome use, a practical origin that still shapes its focus on RV climate control, water heating and indoor and outdoor kitchens. Suburban became part of the Airxcel family in 1998 and remains one of Dayton’s largest employers.
At the base of Sugarloaf Mountain, Sugarloaf Mountain Vineyard makes wine and welcomes visitors to enjoy it in a year-round vineyard setting. Guests can sample wines at the bar or settle in with a flight on the covered heated patio, where the property also hosts food trucks, live music and private events. Free winery tours are available for small groups by reservation.
Under new/old ownership, Sullivan Products keeps the iconic Sullivan line of RC model-aircraft equipment in the hands of modelers, making starters, fuel-system gear and control hardware for the flying field. Based in Ocala, the company supports its long-running starter line with replacement parts and backs the Megatron Starter with a two-year limited warranty. Its own description is refreshingly direct: there is no corporate parent or computer phone tree—just modelers serving other modelers.
Sumatech, Inc. is a White Marsh manufacturer known for precision production supported by AS9100-certified quality controls. The company serves customers needing tightly specified components, including aerospace-related work, through its CNC machining and inspection capabilities.
After five years as Chase Street Accessories & Engraving, the Baltimore business became Summit Imprints in 2023 and was acquired by its long-time manager, Robert Lynch, in May 2024. The shop creates personalized recognition pieces and branded merchandise for organizations, with an in-house team that develops artwork and produces custom work locally while sourcing larger promotional orders through outside suppliers.
Summit Merch Group is a Buffalo-area production partner providing custom merchandise and promotional production from concept through delivery. Its capabilities include screen printing, embroidery, direct-to-film printing, laser engraving, UV printing, large-format printing, custom packaging, strategic sourcing, logistics, and fulfillment for brands, businesses, schools, creators, agencies, touring artists, decorators, print shops, and promotional product distributors.
Founded in 2007, Summit Terragraphics designs and manufactures custom thermoformed raised-relief 3D maps at its Maryland facility. The intentionally small, privately owned company began with maps for hikers and peak-baggers and now creates terrain models for organizations including the National Park Service and U.S. Military. Its maps combine modern geodata with hands-on American craftsmanship to make landscapes easier to understand than they are on a flat page.
SUN Automation Group, founded in 1986, develops and supplies equipment and automation for corrugated box plants, and supports corrugated operations worldwide. Its history includes pioneering lead-edge feeding and the development of the SUN625 rotary die cutter; the company also provides equipment lifecycle service and is 100% employee-owned.
From its Melbourne, Florida headquarters, Sun Nuclear develops quality-management solutions that help cancer centers check diagnostic imaging and radiation-therapy systems. Now part of Mirion Medical, the company combines software such as its SunCHECK connected workspace with measurement devices and phantoms, supporting independent QA at more than 6,000 cancer-treatment facilities in 130-plus countries. Its global support operation includes more than 20 medical physicists, backed by a 5,000-square-foot training center built to resemble a clinical setting.
From a rural shop in White Hall, Maryland, Sun Woodworking makes custom furniture and teaches hands-on woodworking, with a particular focus on chairmaking and green woodworking. Mike Clarkson draws on work with John Alexander and Drew Langsner, more than 12 years running a sawmill, and teaching experience with Baltimore youth to guide small classes in traditional techniques such as steam bending. The shop also produces steam-bent firewood carriers and benches for Nature Sacred’s urban quiet spaces.
Sunair Awnings, founded in the United States in 1978 by the fifth-generation Martensson family, manufactures custom retractable awnings and shading systems for homes and businesses. Its two North American plants—in Maryland and Arizona—assemble products with American labor, including retractable patio awnings, fabric-roof pergolas, louvered roof structures and solar screens. Sunair traces its roots to an umbrella factory founded in Sweden in 1880 and distributes through independent dealers across North America, the Caribbean and Mexico.
Sunburn Alert makes patented, color-changing UV detection stickers that signal when it is time to reapply sunscreen. Its skin-safe stickers are made in the USA and are designed to stay on through wet or dry outdoor activities, with the color changing back when sunscreen is reapplied. The company also develops custom sticker programs, including a Disney Junior Vampirina edition.
Founded by Savannah Mitchell, Sunday Morning Coffee Company is a Black woman-owned roaster producing specialty Arabica blends that are roasted locally and shipped fresh. Its coffee grew from a bootstrapped brand into Sunday Morning at Savannah’s, a coffee lounge and hospitality destination set in a 200-year-old manor in New Windsor, Maryland. The company works with small-scale family farmers in coffee-growing regions worldwide and frames its coffee as part of a broader effort to expand Black representation in specialty coffee and hospitality.
Founded in 2021 as Crayhill Renewables, Annapolis-based Sunraycer is an independent power producer that develops, builds, owns, and operates utility-scale solar and battery storage projects. Unlike developers that sell after construction, Sunraycer retains its assets for long-term operation, with 1.4 GW in operation and another 1.5 GW under construction. Its portfolio is aimed in particular at hyperscalers and other large energy users seeking reliable clean power, supported by a reported fleet availability of more than 99.5%.
Sunrise Medical designs, manufactures, and distributes mobility equipment, with a particular focus on manual and power wheelchairs plus seating and positioning systems for adults and children. Headquartered in Malsch, Germany, with North American headquarters in Fresno, the company makes products in six countries and sells through dealers and distributors in more than 130 countries. Its Education in Motion program also gives clinicians practical resources for complex rehabilitation technology.
Cathy Vogel founded Sunrise Safety Services in June 1995 in an 8-by-12-foot basement room, building it into a minority-owned Maryland company with a 70,000-square-foot facility and 116 employees. The family-oriented business is known for helping keep Maryland construction work zones safe, supplying the tri-state area through traffic control services and a sign shop.
Founded in Brooklyn in 1980 as Morty Kohn’s one-man operation, Sunshine Lighting manufactures and distributes lighting products through its Sunlite, MKS and Ambiate brands. The company developed the Sunlite brand in the 1990s and now operates from more than 100,000 square feet of warehouse space, stocking over 13,000 products for immediate service. Its history also includes the invention of the Shabbulb, a bulb designed specifically for use on Shabbat.
Since its founding in 1972, Super Products has grown from a small manufacturer into a Mukwonago, Wisconsin-based maker of vacuum trucks. Now part of the Alamo Group, the company employs more than 180 people and operates from a 171,000-square-foot facility, serving contractors and municipalities through a nationwide rental and support network.
Founded by Jack A. Khattar in 2005, Supernus Pharmaceuticals is a Rockville biopharmaceutical company that develops and commercializes medicines for central nervous system diseases. With more than 30 years of product-development expertise, it uses proprietary technologies and an active clinical pipeline to advance treatments in neurology and psychiatry, while marketing its medicines in the United States through specialty sales forces.