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Top Cybersecurity Companies in Washington, DC

We've found the best
Cybersecurity Providers
 for you.

Looking for the best cybersecurity company in Washington? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.
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UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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Any/All Available
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Any/All Available
Attorneys
Automotive
Business Services
Construction
Education
Energy
Entertainment
Finance
Food/Beverage
Government
Healthcare
Industrial
Non-Profit
Politics
Restaurant
SaaS
Startups
Businesses provider works with
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Any/All Available
Small Businesses: 1–250 employees
Medium Businesses: 251–999 employees
Enterprise Businesses: 1000+ employees
Provider's minimum per-project cost
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Any/All Available
Up to $2,500
Up to $5,000
Up to $10,000
$25,000 or more
Provider's minimum retainer cost
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Any/All Available
Up to $500, monthly
Up to $5,000, monthly
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9 Provider(s)Last Updated: April 23, 2025
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OSIbeyond

Rockville, MD, US
5.0 | 14 reviews
Always responsive immediately. Have a great team of workers and All very knowledgeable.
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Services
Cloud ConsultingManaged Service ProvidersIT ServicesView all
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Business Summary:
World-class Managed IT & Cyber Security Services
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Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
$2,000 or more, monthly
UpCity Silver Sponsor
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R3, LLC

Frederick, MD, US
5.0 | 1 review
I love working with R3. They are very responsive with our requests and have a great knowledge base to resolve issues and come up with creative solutions when needed.
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Services
Cloud ConsultingManaged Service ProvidersIT ServicesView all
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Business Summary:
R3-IT is your trusted partner in providing comprehensive IT solutions as a full-service Managed Service Provider (MSP) and Managed Security Service Provider (MSSP).
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Industry(s):
Government | Healthcare | Industrial | Non-Profit | Politics | Finance
Business Details
Businesses provider works with
Small, Medium, Enterprise
The whole team at Proton Solutions is very responsive and always answers our calls. We were used to having to leave a message and wait for a call back so this is a refreshing change for us. They also helped us with our cyber security needs so that we were able to get our cyber insurance.
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Services
Cybersecurity
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Business Summary:
Proton Solutions is a web, managed IT, and cybersecurity company serving the nation's capital and surrounding areas, including Maryland and Virginia, with over a decade of service. Founded on the ideals that the client is always right, customer service is our way of life and why we maintain an unwav
read summary
Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$2,500 or more
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Hani and his team at Critical Solutions are great. They are excellent and efficient with helping us set up new I T programs or new computers. More important, when we experience a computer problem, they are always available to trouble shoot, fix the problem and get us back in operation quickly. They also provide us with cloud storage and protection against viruses and malware. I highly recommend them as your I.T. Consultant for any type of business. Dennis DeLizzio, President, DeLizzio Seligson Architects.
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Services
Managed Service ProvidersIT ServicesCybersecurityView all
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Business Summary:
From the start, Critical IT Solutions, was founded to help small and mid-size companies to tackle the of information technology challenges they face. We have the knowledge and expertise to bring a wide range of skills to support any business with their IT needs.
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Industry(s):
Startups | Non-Profit | Healthcare | Construction
Business Details
Businesses provider works with
Small
Provider's minimum per-project cost
$1,000 or more

LetsNod

Washington, DC, US
5.0 | 1 review
This company is a dream to work with. They gave my team and I expert advice and filled some blanks that we did not even know existed. They have since become a one-stop shop for my company covering our IT, Web and secure all our infrastructure. Their team is ultra responsive and very flexible. I would definitely recommend LetsNod (and I have) to anyone looking for services they offer.
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Services
Cybersecurity
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Business Summary:
LetsNod is a web, IT, and cybersecurity company that has been serving the nation's capital and surrounding areas for over a decade.
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Industry(s):
Restaurant | Industrial | Healthcare | Food/Beverage | Finance | Energy
Business Details
Businesses provider works with
Small
Provider's minimum per-project cost
$2,500 or more
2022 Study: 50% of SMBs Have a Cybersecurity Plan in Place | UpCity

This UpCity study presents insight from 600 U.S. small business owners and IT experts on their latest cybersecurity practices, data breach prevention, and disaster recovery measures in 2022.

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Loginsoft

Chantilly, VA, US
Services
Cybersecurity
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Business Summary:
Loginsoft is a Cybersecurity services company providing comprehensive cybersecurity solutions tailored to meet the unique needs of organizations. Loginsoft is trusted by several leading security product and Enterprise companies as their best kept secret Technology partner.
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Industry(s):
Healthcare | SaaS | Startups | Entertainment | Finance
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$25,000 or more

Middleground Technologies

Westchester, IL, US
Services
Managed Service ProvidersIT ServicesCybersecurity
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Business Summary:
Middleground is a technology consulting and services company dedicated to helping businesses get rid of technology frustrations. Our superior customer service, unmatched attention to detail, and technical consulting skills are the driver for business growth.
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Industry(s):
Non-Profit | Healthcare | Finance | Construction | Attorneys | Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$5,000 or more
Provider's minimum retainer cost
$2,000 or more, monthly

Stealth - ISS Group Inc.

Arlington, VA, US
Services
Cybersecurity
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Business Summary:
Stealth – ISS Group® Inc. acts as your extended IT, cybersecurity, risk and compliance team and provides strategic guidance, engineering and audit services, along with technical remediation and security operations.
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Industry(s):
Business Services
Business Details
Businesses provider works with
Small, Medium, Enterprise
Provider's minimum per-project cost
$2,500 or more
Provider's minimum retainer cost
Less than $500, monthly
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Iron Range Cyber

Washington, DC, US
Services
Cybersecurity
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Business Summary:
Cybersecurity today is overpriced, overcomplicated, and opaque. At Iron Range Cyber we bring simplicity, clarity, and transparency to building cost-effective cybersecurity programs for small to mid-sized businesses.
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