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Fathom 4

Fathom 4

Review
7.6/10
🇺🇸 Charleston, SC·10-49 employees·Est. 2012·Reviewed Mar 2026

Custom software, cybersecurity, and product design from Charleston

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Best For
Charleston businesses needing combined software and cybersecurity, new product builds
Industries
Technology, Healthcare, Defense

About Fathom 4

Fathom 4 is a Charleston, South Carolina firm established in 2012, offering custom software development, cybersecurity, and product design. With a 10-49 person team, Fathom 4 serves clients that need a technically broad partner capable of handling product design, software development, and security within a single engagement. Over 12 years of regional operation, the firm has built a presence in the Charleston technology market.

Who Fathom 4 Is Best For

Fathom 4 is best for businesses in the Charleston area that need custom software development and cybersecurity addressed together, particularly for products where security is a foundational requirement. Their product design capability makes them a fit for clients developing new digital products rather than maintaining legacy systems.

Why Choose Fathom 4

12+ years of regional experience
Combined software, security, and product design
Mid-size team with broader capacity
Charleston-based with local market focus

Things to Consider

No Clutch reviews for independent quality benchmarking
No disclosed pricing or minimum project size
Three distinct practice areas may dilute specialization depth
Limited public portfolio visibility

Fathom 4 Services

Custom Software DevelopmentCybersecurityProduct Design

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