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MD
Founded by Lisa Duff, Oak Spring Farm is a Freeland, Maryland vegetable farm now run by Erika Roan and Adam Mihalik, growing certified organic produce for a customizable CSA serving Baltimore-area families. The farmers emphasize flavor and careful timing, harvesting vegetables such as carrots and tomatoes at their peak and connecting each week’s share directly to the local community. Oak Spring has been certified organic since 2013 and joined the Real Organic Project in 2020.
Baltimore-based Observer Tools develops professional-grade flashlights and tools, bringing experience from the DEWALT, Stanley, and Craftsman teams to products sold directly to customers. Its compact rechargeable lights are designed for professional use and everyday carry, with the company’s quality process extending from product testing through ongoing supplier and field reviews. Every tool is backed by a Lifetime Craftsmanship Warranty.
Ocean Body Balm, LLC is a Temple Hills, Maryland skincare company built around an all-natural balm recipe it says has been passed down through generations. It makes handcrafted skin products for individual customers and wholesale resellers, with its Blue Wave balm positioned for moisturizing dry or problem skin.
Since 2011, Ocean Craft Marine has built custom rigid inflatable boats (RHIBs) for military, government, law-enforcement and other professional crews, tailoring each vessel to the mission rather than selling a standard off-the-shelf craft. The company’s Annapolis-based team works with customers from design through delivery, then backs its boats with worldwide servicing and mission-specific operator training. Ocean Craft Marine is also known for its AAS-100 amphibious system, which gives selected RHIBs four independently driven wheels for rapid movement between land and water.
Oceaneering grew from a Gulf of Mexico diving company founded in 1964 into a global engineering business known for solving complex operational challenges under water, on land, and in space. Today, it primarily serves offshore energy while adapting its technology for customers in fields such as defense and aerospace. Its work includes remotely operated vehicles and specialized engineered systems, supported by manufacturing and testing capabilities.
Oceanetics began in 2002 when Matthew Marcy, Erick Knezek, and Robert Truston sketched out the company at a folding card table in a home basement. What started as a specialty contractor for Naval Facilities Command has grown into an Annapolis firm known for carrying marine projects from concept through field support, with work reaching customers around the globe. Oceanetics is a HUBZone and service-disabled-veteran-owned small business.
Octane Wireless designs and manufactures high-performance antennas and RF over Fiber products, including wearable, gooseneck, panel, vehicle, UAV, stub, omni-directional, peel-and-stick, and other antenna families. The company also develops custom antennas and fiber-optic antenna-remoting solutions for military, law enforcement, commercial wireless, cellular/LTE, 5G, WiFi, UAV, vehicle, and other communications applications.
With four decades of experience, Octave Federal develops secure software, hardware and mission-specific technology solutions for the U.S. Federal Government and its partners. Headquartered in Chantilly, Virginia, with offices in Huntsville and Lanham, the company specializes in public safety, geospatial intelligence and mission-critical security work. Its Integrated Products Division is appraised at CMMI Maturity Level 3 for Development, and the company maintains an ISO 9001:2015-certified quality management system.
Formed in 2013, OcuDyne is a clinical-stage medical device company developing minimally invasive therapies for age-related macular degeneration by improving blood flow to the eye. Its work grew from research linking compromised ocular perfusion with AMD progression, and its investigational OPTiC system has advanced through clinical trials in Argentina and Australia.
ODL, Inc. is a family-owned, privately operated building-materials manufacturer whose history of making home products dates to 1945. It is known for entry doors, doorlights and enclosed blinds, and it designs and fabricates insulated glass offerings from its headquarters in Zeeland, Michigan, with locations in Tennessee and internationally.
Odyssey Yachts builds custom seagoing sailing craft, pairing metalwork and woodworking with the practical demands of offshore cruising. Founded around Brian Russell’s background as a sculptor, blacksmith, machinist, woodworker and sailor, the company began its 44-foot aluminum pilot-house cutter project in 2009 and later launched S.V. Helacious in 2016. Its workshop includes 5,000 square feet of indoor space and a covered outdoor area for building the Dix 43 Pilot House Cutter, described as its flagship yacht.
Offshore Aviation Group is a veteran-owned company providing maritime and aviation support for defense, research, commercial, and military customers. Through OffshoreUAS, it designs and manufactures tactical unmanned aerial vehicles, provides rapid prototyping, payload integration, flight testing, and training, and operates maritime support vessels for defense, research, offshore, and logistics missions.
Oh, What A Cake! is a Columbia, Maryland bakery producing custom cakes, wedding cakes, cupcakes, brownies, cookies, tropical upside-down cakes, and other baked goods. Its offerings include buttercream and fondant cakes, multiple cake types, icing choices, and cake fillings for birthdays, showers, weddings, baptisms, and other celebrations.
Ohmic Instruments Inc. manufactures and resells humidity, dew-point and biomedical test equipment, including the ultrasound power meters it has produced since 1986. Serving an international customer base for more than 35 years, the St. Charles, Missouri company calibrates its manufactured products to NIST-traceable standards and services, calibrates and repairs everything it sells.
OI Analytical, a Xylem brand, designs and manufactures analytical instruments for chemical analysis. Its product portfolio includes total organic carbon analyzers, automated chemistry analyzers, gas chromatography detectors, purge-and-trap concentrators, titration instruments, and life-science biochemistry analyzers for environmental, water, food and beverage, mining, petroleum, chemical, energy, and laboratory applications.
OKOndt GROUP LLC develops and manufactures nondestructive testing equipment, with a particular focus on inspecting railway rails and aircraft wheels without interrupting service. The group’s NDT work dates to 1993 and now reaches customers in more than 70 countries, supported by a catalog of about 4,000 transducers and more than 40 devices. Its U.S. representative office connects industrial customers with portable instruments and automated systems developed by the wider OKOndt GROUP.
Founded by Sonia Amo-Akonnor and her children, Akua and Kofi, Okumkom Beverage Co. makes naturally sweet juices rooted in the family’s Ghanaian heritage. The Laurel, Maryland company draws on recipes and food wisdom passed down from Sonia’s grandmother, Maame Afrah, using simple ingredients with no added sugars or artificial dyes. Its bottles are meant to carry the flavors and traditions of Ghana into everyday refreshment.
Woman-owned and certified as a small business, Old Federal Tool Company has made its home in Forest Hill, Maryland, since its incorporation in 1986. It began as a moldmaking shop serving Black & Decker and has since grown into a contract manufacturer known for precision custom-molded plastic components, supporting customers from prototype through production. Its work serves demanding markets including defense and medical manufacturing.
Founded by two Navy aviators, Old Line Spirits distills American single malt whiskey and aged Caribbean rum at its Baltimore distillery. Mark McLaughlin and Arch Watkins opened the Highlandtown operation to the public in 2017 after learning the craft in Washington state and building their production partnership in Ohio. The 25,000-square-foot distillery also houses The Ready Room, an aviation-inspired cocktail bar, and welcomes visitors for tours and tastings.
Oldcastle APG Mid-Atlantic is the regional Belgard business serving Virginia, connecting homeowners and professionals with hardscape products and local customer service. Following Oldcastle APG’s 2019 acquisition of Eagle Bay, the business transitioned Eagle Bay to the Belgard name in 2021, expanding product choices for outdoor living and commercial applications.