The 15 Largest Companies Shining a Light on Baltimore's Talent

Sunny Betz
December 17, 2020
Sunny Betz
December 17, 2020

Baltimore may be a bit smaller than neighboring Washington, D.C., but for what it lacks in population size, it more than makes up for in talent, ambition and ingenuity. Baltimore's tech scene has enjoyed a lot of publicity and growth in the past few years, with local companies posting around one thousand new jobs every month. Baltimore's biggest industries are healthcare, biotech, and finance, but beyond those top markets the city boasts a diverse pool of companies in nearly every sector imaginable, offering everything from wearable fitness products to e-learning tools. Baltimore's exploding economic growth has earned it a position among the top 20 biggest cities for tech growth — and it's showing no signs of slowing down.

For a taste of what Baltimore’s thriving economy has to offer, look no further than this list of 15 of the largest companies calling Baltimore home.

Largest Companies in Baltimore to Know

  • Under Armour
  • OneMain Financial
  • Learn Behavioral
  • Constellation Energy
  • Prometric
  • Jensen Hughes
  • WillScot
  • Cowan Systems


Under Armour Companies in Baltimore
Under Armour

Under Armour

Founded: 1996

Focus: Wearables, Retail

What they do: Under Armour is a clothing retailer that develops and sells wearables and clothes designed for high-performance sports. From moisture wicking shirts to smart technologies that track health progress, Under Armour's focus is on delivering products that help support active lifestyles. Under Armour maintains a strong commitment to its fitness community, offering mentorship and education services to disadvantaged groups in order to encourage overall community health. 

Number of Employees: 9,000+


OneMain Financial Companies in Baltimore
OneMain Financial


    Founded: 1912

    Focus: Finance

    What they do: OneMain Financial connects its clients with personal loans to fit their needs and budget requirements, helping them through the loan application process as smoothly as possible. The company's team of financial experts helps ensure that each client stays on top of their finances and reaches their goals on time, offering fixed rates and payment options as well as negotiating reasonable payment plans.

    Number of Employees: 5,170+


    Learn Behavioral Companies in Baltimore
    Learn Behavioral


    Founded: 2007

    Focus: Education, Healthtech

    What they do: LEARN Behavioral is an educational assistance organization focused on supporting children with autism and special needs in their educational journeys. The company's provider network utilizes a digital technology platform, called teleABA, to provide therapeutic services to children via computers and mobile devices, helping patients access care on demand.

    Number of Employees: 4,000+


    Constellation Energy Companies in Baltimore
    Constellation Energy


    Founded: 1999

    Focus: Energy

    What they do: Constellation Energy is one of the foremost energy providers in the country, delivering a range of power and electric services to homeowners and corporations across the country. Constellation Energy seeks to not only provide energy services but to also help its customers save energy and money where possible, and the company serves customers in Texas, New York, Georgia, Illinois and thirteen other states.

    Number of Employees: 3,900+

    Prometric Companies in Baltimore


    Founded: 1994

    Focus: Edtech

    What they do: Prometric develops technologies for use by testing organizations, providing institutions across the globe with the tools to effectively conduct large-scale testing. The company's online platform makes it easy for test-takers to register for tests, and it offers options for businesses, schools, and military organizations.

    Number of Employees: 1,800+


    Jensen Hughes Companies in Baltimore
    Jensen Hughes 


    Founded: 1980

    Focus: Security

    What they do: Jensen Hughes engineers products designed to maintain both online and offline security, helping companies better respond to emergencies and protect both their employees and their assets. Integrating software into its approach, the company delivers risk analysis products built to maintain environmental safety, protecting businesses from fire risks, workplace hazards, crime and other emergencies.

    Number of Employees: 1,400+

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    WillScot Companies in Baltimore


    Founded: 1945

    Focus: Construction

    What they do: WillScot manufactures and builds storage and space products for use by enterprises, including mobile offices, storage units and portable classrooms. WillScot offers organizations across the country space and storage solutions, serving organizations in construction, retail, government, transportation and other markets.

    Number of Employees: 1,200+


    Cowan Systems Companies in Baltimore


    Founded: 1924

    Focus: Logistics

    What they do: Cowan Systems is a logistics company that provides organizations of all shapes and sizes with shipping and transportation services built to help maintain their national connectivity and supply chains. Offering intermodal shipping, driver staffing, warehousing and brokerage services, Cowan Systems helps companies gain further control while providing insight into their supply chain networks.

    Number of Employees: 600+

    Baltimore Aircoil Company Companies in Baltimore
    Baltimore Aircoil Company


    Founded: 1938

    Focus: HVAC

    What they do: Baltimore Aircoil Company is an international HVAC and refrigeration company that provides industrial cooling solutions to companies seeking to better control their environmental conditions and preserve their perishable products. The company's suite of products includes evaporative condensers, ice thermal storage units, closed circuit cooling towers and hybrid adiabatic products.

    Number of Employees: 600+

    Catalyte Companies in Baltimore


    Founded: 2000

    Focus: Software, HR Tech

    What they do: Catalyte leverages cutting-edge AI technology to make the talent acquisition process more efficient and successful, using machine learning technology to accurately identify the strongest candidates for open positions. Focused mainly on discovering software engineering talent, Catalyte additionally offers outsourced, on-demand engineering resources to help companies become more autonomous in their operations.

    Number of Employees: 500+

    The Baltimore Sun Companies in Baltimore
    The Baltimore Sun


    Founded: 1837

    Focus: Media

    What they do: The Baltimore Sun is the largest news publication in the state of Maryland, delivering daily news content and current events coverage to a readership base of over one million people. In addition to breaking news, The Baltimore Sun publishes opinion pieces, puzzles, gift guides and a variety of other entertainment content.

    Number of Employees: 400+


    R2integrated Companies in Baltimore


    Founded: 2003

    Focus: Marketing

    What they do: R2integrated aims to combine technology tools with marketing strategy to help brands develop more targeted approaches to advertising their image and products. R2integrated utilizes data science and design expertise to guide brands in carving out niches in their industries, giving them more power over the experiences they offer their customers.

    Number of Employees: 250+


    QL2 Software Companies in Baltimore


    Founded: 2003

    Focus: Data Science

    What they do: QL2 Software provides its enterprise clients with data capture technology that helps companies develop more accurate pictures of their place within their markets. Serving a broad range of industries from travel to retail, QL2 Software offers data acquisition, product matching, price monitoring, competitive intelligence and a number of other services

    Number of Employees: 250+


    Continental Realty Corporation Companies in Baltimore
    Continental Realty Corporation


    Founded: 1960

    Focus: Real Estate

    What they do: Continental Realty Corporation is a large-scale real estate company that manages over ten thousand apartment complexes throughout Maryland and beyond. In addition to single and multi-family homes, Continental Realty Corporation also invests in a number of commercial properties and enterprise spaces, for a combined value of over two billion dollars.

    Number of Employees: 250+


    Apkudo Companies in Baltimore


    Founded: 2011

    Focus: Mobile

    What they do: Companies that rely on networks of mobile devices can enlist Apkudo's help to maintain control over and connectivity of their connected devices. Apkudo's artificial intelligence technology helps companies more accurately run diagnostics and unlock new opportunities to streamline their supply chains.

    Number of Employees: 100+


    Images courtesy of Shutterstock and company website screenshots

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