EFFI inc.

effi.co

Seoul, South Korea

1-10 employees

LinkedIn Profile

About EFFI inc.

software development, software, it, application, quality assurance, technology, app qa, app development, saas, b2c, multi-platform chat unification, monetization tools, audience analytics, services, campaign-specific analytics, media & entertainment, audience engagement, live fundraising tools, web search portals, libraries

EFFI inc.'s Tech Stack

AI/ML

Decision Makers at EFFI inc.

1 contact

Steve Choi

Co-founder

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28 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

HubSpot users typically run inbound-led sales motions. Products that integrate with HubSpot (email automation, CRM enrichment, ABM platforms) are natural fits.

EFFI inc.'s Position in the StackWho Database

• EFFI inc. 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).
• 452 companies in Seoul are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as EFFI inc.).

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 EFFI inc. use?

EFFI inc. uses Cloudflare DNS, Gmail, Google Apps, Amazon AWS, Webflow, Bootstrap Framework, and 22 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at EFFI inc.?

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

What industry is EFFI inc. in?

EFFI inc. operates in the information technology & services industry, headquartered in Seoul, South Korea. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export EFFI inc.'s contact data?

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