TDI

DC, United States

Enterprise cybersecurity solutions with a focus on performance management and compliance.

TDI is a cybersecurity firm dedicated to delivering full lifecycle enterprise cybersecurity solutions and services. Founded in 2001, TDI has been at the forefront of Cybersecurity Performance Management (CPM), providing innovative frameworks that emphasize outcomes over activities. The company serves both the U. government and global commercial businesses, ensuring robust protection against evolving cyber threats.

TDI offers a range of services including Cybersecurity Performance Management, Governance, Risk and Compliance (GRC), Cybersecurity Engineering & Operations, and Cloud Services. Their approach is centered around aligning business objectives with security needs, ensuring continuous compliance, and improving return on investment. TDI's expertise extends to incident response, zero trust architecture, and vulnerability management, among other areas.

With a strong track record of serving top clients for over a decade, TDI has been recognized for its contributions to the field, including the development of the CnSight® platform, which has won the Cybersecurity Excellence Gold Award for five consecutive years. Their strategic acquisition of Gray Tier Technologies further strengthens their leadership in the cybersecurity domain.

25
YEARS IN BUSINESS
3
SERVICES

Agency details

Team size
201-500 people
Founded
2001 (25 years)

About this agency on Agency List

TDI holds an Agency List Score of 73 out of 100.

That score is higher than 42% of the 36,920 agencies Agency List has assessed so far.

The Agency List Score measures how well an agency documents its work in public: named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than to the client.

It does not measure client satisfaction, price, or availability.

How the Agency List Score is measured

Assessment date

Agency List assessed TDI in September 2026, reading 3 pages published on tdisecurity.com.

The score reflects what TDI had published by that date; anything published since has not been read.

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