SizeUp

sizeup.com

information technology & services

sizeup.com

San Francisco, California, United States

11-50 employees

4815000 revenue

LinkedIn Profile

About SizeUp

business intelligence, competitive analysis, performance benchmarking, finding best places to advertise, fintech, small business, accounting, economic development, banking, insurance, insuretech, technology, information & internet, customer acquisition, data visualization, job creation, advertising optimization, government, local business data, business decision tools

SizeUp's Tech Stack

AI/ML

13 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

React-based front-ends indicate a modern web engineering stack. Developer tools, component libraries, testing frameworks, and design systems are relevant sales angles.

SizeUp's Position in the StackWho Database

• SizeUp is 1 of 194,140 information technology & services companies tracked in StackWho.
• 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as SizeUp).

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 SizeUp use?

SizeUp uses UltraDns, Gmail, Google Apps, MailChimp SPF, WP Engine, Typeform, and 7 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at SizeUp?

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

What industry is SizeUp in?

SizeUp operates in the information technology & services industry, headquartered in San Francisco, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export SizeUp's contact data?

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