What technologies does Three Sigma use?

Three Sigma uses Cloudflare DNS, Gmail, Google Apps, Microsoft Office 365, CloudFlare Hosting. View their full technology stack — including all 10 detected tools — on StackWho.

Who is the Co-Founder & CTO of Three Sigma?

Afonso Oliveira is the Co-Founder & CTO at Three Sigma. Get verified contact information on StackWho.

Who is the Chief Executive Officer of Three Sigma?

Tiago Barbosa is the Chief Executive Officer at Three Sigma. Get verified contact information on StackWho.

Where is Three Sigma located?

Three Sigma is based in Lisbon, Lisbon, Portugal.

Three Sigma

threesigma.xyz

information technology & services

threesigma.xyz

Lisbon, Lisbon, Portugal

1-10 employees

LinkedIn Profile

About Three Sigma

web3, smart contracts, defi, solidity, blockchain, it consulting, investments, upgradeable contract vulnerabilities, security patch guidance, security testing, solidity audit, defi security, financial technology, b2b, gas optimization, manual code review, tokenomics analysis, security standards, cross-chain contract security, economic modeling

Three Sigma's Tech Stack

AI/ML

Decision Makers at Three Sigma

2 contacts

Afonso Oliveira

Co-Founder & CTO

a***@threesigma.xyz Sign up to view

Tiago Barbosa

Chief Executive Officer

t***@threesigma.xyz Sign up to view

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10 technologies detected · 2 decision makers · Emails available

Sales Outreach Angle

Three Sigma is a technology company. Software vendors, dev tools, and SaaS platforms find technology companies like this highly receptive. Use StackWho to identify the right decision-maker (CTO, VP Eng, or Head of Product) and reach out with a stack-specific pitch.

Three Sigma's Position in the StackWho Database

• Three Sigma 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).
• 1,745 companies in Lisbon are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as Three Sigma).

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

Frequently Asked Questions

What technology does Three Sigma use?

Three Sigma uses Cloudflare DNS, Gmail, Google Apps, Microsoft Office 365, CloudFlare Hosting, Google Tag Manager, and 4 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Three Sigma?

StackWho has verified email addresses for 2 decision makers at Three Sigma. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Three Sigma directly for sales, recruiting, or partnerships.

What industry is Three Sigma in?

Three Sigma operates in the information technology & services industry, headquartered in Lisbon, Lisbon, Portugal. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Three Sigma's contact data?

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