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Top 20 Managed Detection and Response (MDR) Security Companies List

The line between MDR (managed detection and response) and traditional MSSPs continues to blur. Plenty of MSSPs now offer MDR services — but Gartner says customers should be careful about pretenders in the market that have incomplete offerings.

To help clarify the situation, Gartner’s 2018 Market Guide for Managed Detection and Response Services points to 20 U.S.-based companies — actually, 21 — that offer credible MDR capabilities. Here’s the U.S. list (sorted alphabetically) along with MSSP Alert’s background on each company.

Related: Many of these U.S.-based companies also appeared on our Top 200 MSSP 2019 Company List and Research when it debuted in September 2019.

Top 20 MDR (Managed Detection and Response) Security Companies to Know

1. ADT Cybersecurity of Salt Lake City, Utah

  • Branded MDR Service: ADT Cybersecurity
  • Background: ADT acquired DATASHIELD in November 2017 to push deep into MDR services and blend the worlds of physical security with network security. Financial terms were not disclosed.

2. Alert Logic Houston of Texas

3. Arctic Wolf Networks of Sunnyvale, California

4. Booz Allen Hamilton of McLean, Virginia

5. Cisco Systems of San Jose of California

6. Critical Informatics of Seattle, Washington

7. eSentire of Cambridge, Ontario

8. Expel of Herndon, Virginia

9. FireEye of Milpitas, California

10. Ingalls Information Security of Alexandria, Louisiana

  • Branded MDR Service: Ingalls Managed Detection and Response
  • Background: The company provides training and mentoring tailored to MSP partners, though we don’t know the partner ecosystem’s reach.

Continue to page two of two for MDR security companies 11 to 21 (sorted alphabetically).

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    Joe Panettieri:

    Hi David: You can email news info to me here:


    Joe Panettieri
    Content Czar, MSSP Alert
    EVP, After Nines Inc.


    Managed Detection and Response services are must needed for all the enterprises and organizations to protect their data on the internet. By using the best cyber security services, the information on the network will be protected.
    Comodo Cybersecurity would like to keep in touch with you about cybersecurity issues, as well as products and services available. Website:

    Joe Panettieri:


    Thanks for the note. Comodo can reach me directly with news updates, feedback, etc., via email:

    Thanks so much.

    Joe Panettieri
    Content Czar, MSSP Alert
    EVP, After Nines Inc.

    Feliciano Rivera:

    Hi Joe,

    Appreciate the list.

    Feliciano Rivera
    Bitdefender License and Technology Group

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