San Jose, CaliforniaHuman vetted since 2007
Best Cybersecurity & Digital Defense in San Jose
3 cybersecurity firms serving the San Jose, California area, ranked by tier and rating.
- Verified providers
- 3 verified / 3 listed
- Last updated
- Last updated August 2026
Ranked listings
Top Cybersecurity & Digital Defense in San Jose, CA
Ranked by tier and rating. Every listing is human vetted before it appears here.
How we rank
Providers are hand-vetted by our editorial team based on verified client history, domain authority, and AI footprint. Rankings within San Jose are then ordered by tier, verification status, rating, and review count — never by pay-to-rank.
#1
Cybersecurity & Digital DefenseVerified
Zscaler
Zscaler is a cloud security company founded in 2007 by Jay Chaudhry, headquartered in San Jose, California. Zscaler operates the Zero Trust Exchange, the world's largest inline security cloud processing over 500 billion transactions daily across 150+ data centres. Products include Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA), and Zscaler Digital Experience (ZDX). The company serves over 8,100 customers including 40% of the Fortune 500 and reported $2.2 billion in revenue for fiscal year 2025. Zscaler trades on NASDAQ under the ticker ZS.
San Jose, CaliforniaFounded 2007
View listing
#2
Cybersecurity & Digital DefenseVerified
Zscaler
Zscaler is the worlds largest cloud security company and the pioneer of zero trust architecture, operating the Zero Trust Exchange platform that processes over 400 billion daily transactions for 40% of Fortune 500 companies. The NASDAQ-listed company replaces traditional firewalls and VPNs with cloud-native, identity-based access controls.
San Jose, California
View listing
#3
Cybersecurity & Digital DefenseVerified
Securiti
Securiti provides a unified data controls platform using AI to automate privacy, security, governance, and compliance across multi-cloud environments with 70+ out-of-box regulatory templates.
San Jose, California
View listing
Same category · other cities
Cybersecurity & Digital Defense in other US cities
- New York, NY
- Los Angeles, CA
- Chicago, IL
- Houston, TX
- Phoenix, AZ
- Philadelphia, PA
- San Antonio, TX
- San Diego, CA
- Dallas, TX
- Austin, TX
- Jacksonville, FL
- San Francisco, CA
- Charlotte, NC
- Indianapolis, IN
- Seattle, WA
- Denver, CO
- Nashville, TN
- Oklahoma City, OK
- Portland, OR
- Las Vegas, NV
- Memphis, TN
- Louisville, KY
- Baltimore, MD
- Milwaukee, WI
- Albuquerque, NM
- Tucson, AZ
- Fresno, CA
- Sacramento, CA
- Mesa, AZ
- Kansas City, MO
- Atlanta, GA
- Omaha, NE
- Colorado Springs, CO
- Raleigh, NC
- Virginia Beach, VA
- Minneapolis, MN
- Tampa, FL
- Miami, FL
- Cleveland, OH
- Pittsburgh, PA
- Cincinnati, OH
- Orlando, FL
- St. Louis, MO
- Boston, MA
- Detroit, MI
- Columbus, OH
- Fort Worth, TX
- El Paso, TX
- Honolulu, HI
Same city · other categories
Other services in San Jose
SEO Agencies in San Jose
Browse SEO agencies serving San Jose and California.
View listings
Web Design and Development in San Jose
Browse web design and development agencies serving San Jose and California.
View listings
Lawyers and Firms in San Jose
Browse lawyers and law firms serving San Jose and California.
View listings
Internet Marketing in San Jose
Browse internet marketing agencies serving San Jose and California.
View listings
Frequently asked
About Cybersecurity & Digital Defense in San Jose
What is the top-rated Cybersecurity & Digital Defense in San Jose?
Zscaler currently holds the #1 rank on DirJournal's Cybersecurity & Digital Defense listing for San Jose, California. Rankings are recalculated as providers earn verification, publish pricing tiers, and accumulate reviews. See the ranked grid above for the full top 3.
How much do cybersecurity firms typically cost in San Jose?
Most cybersecurity firms publish pricing tiers on their DirJournal profile. Click any provider above to see their tiers, starting rate, and typical engagement size. Where pricing isn't listed, request a quote directly through the provider's contact link.
How does DirJournal rank cybersecurity firms for San Jose?
Providers are hand-vetted by our editorial team, then ranked by verification status, tier, rating, and review count. Only published listings appear. Location matching for the San Jose page runs city-first, expanding to statewide (California) or nationwide only when local coverage is thin — this is clearly disclosed on the page when it happens.
For buyers
Browse the full Cybersecurity & Digital Defense directory
See every verified provider in the category, not just the ones serving San Jose.
Browse all Cybersecurity & Digital DefenseFor providers
Are you a cybersecurity in San Jose?
Add your business in about 5 minutes. Editor review, then indexed by ChatGPT, Perplexity, Gemini, and Claude.
List your business