Sum Digital

sumdigital.com

San Francisco, California, United States

11-50 employees

LinkedIn Profile

About Sum Digital

paid search, google adwords certified, facebook advertising, payperclick optimization, linkedin advertising, conversion optimization, twitter advertising, pinterest advertising, influencer marketing, influencer sourcing, fullservice creative, ugc video & photography, photo & video editing, e-commerce, advertising, social media marketing, digital marketing, social media, consumer internet, internet

Sum Digital's Tech Stack

Decision Makers at Sum Digital

1 contact

Terry Whalen

President

t***@sumdigital.com Sign up to view

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26 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

WordPress as a CMS signals a content-driven or SMB digital presence. SEO tools, hosting solutions, and page-builder plugins are natural fits for outreach.

Sum Digital's Position in the StackWho Database

• Sum Digital is 1 of 80,546 marketing & advertising companies tracked in StackWho.
• 80,503 marketing & advertising companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 21,907 marketing & advertising companies are in the 11-50 employee range (same size as Sum Digital).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated August 2026.

Frequently Asked Questions

What technology does Sum Digital use?

Sum Digital uses Outlook, Amazon AWS, Media Temple SSL, Mobile Friendly, Facebook Widget, Cedexis Radar, and 20 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Sum Digital?

StackWho has verified email addresses for 1 decision maker at Sum Digital. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Sum Digital directly for sales, recruiting, or partnerships.

What industry is Sum Digital in?

Sum Digital operates in the marketing & advertising industry, headquartered in San Francisco, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Sum Digital's contact data?

Yes. StackWho Pro members can export decision maker contact data for Sum Digital and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.