Preffect

preffect.com

San Francisco, California, United States

1-10 employees

LinkedIn Profile

About Preffect

behavioral health, camera logging, sleep monitoring, habit formation tools, diet tracking, seamless health tracking, activity tracking, digital health, health data organization, behavioral health insights, personalized health challenges, offices of all other health practitioners, personalized health plans, b2c, exercise logging, healthcare, mobile health app, voice logging, data logging, behavioral insights

Preffect's Tech Stack

3 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

AWS infrastructure signals engineering sophistication. This company likely evaluates cloud cost management, security tooling, observability, and developer productivity solutions.

Preffect's Position in the StackWho Database

• Preffect is 1 of 3,629 consumer services companies tracked in StackWho.
• 3,619 consumer services companies in our database have verified decision-maker emails (100% of the cohort).
• 53,147 companies in California are in the StackWho database.
• 1,556 consumer services companies are in the 1-10 employee range (same size as Preffect).

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 Preffect use?

Preffect uses Outlook, Amazon AWS, Mobile Friendly. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Preffect?

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

What industry is Preffect in?

Preffect operates in the consumer 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 Preffect's contact data?

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