What technologies does Calefa Oy use?

Calefa Oy uses Outlook, Microsoft Office 365, Google Cloud Hosting, Google Maps (Non Paid Users), DoubleClick. View their full technology stack — including all 19 detected tools — on StackWho.

Who is the CEO of Calefa Oy?

Vesa Tamminen is the CEO at Calefa Oy. Get verified contact information on StackWho.

Who is the CEO of Calefa Oy?

Petri Vuori is the CEO at Calefa Oy. Get verified contact information on StackWho.

Calefa Oy

Q: What industry is Calefa Oy in?

Calefa Oy operates in the semiconductors industry.

calefa.fi

semiconductors

calefa.fi

Finland

11-50 employees

LinkedIn Profile

About Calefa Oy

improve industrial processes by utilising waste heat, renewable energy semiconductor manufacturing, renewable energy, decarbonization, services, local energy sources, energy automation, industrial process heat, turnkey delivery, ventilation, heating, air-conditioning, and commercial refrigeration equipment manufacturing, energy system integration, solar energy, co2 emissions reduction, environmentally friendly energy, process optimization, waste heat utilization, energy system monitoring

Calefa Oy's Tech Stack

Decision Makers at Calefa Oy

2 contacts

Vesa Tamminen

CEO

v***@calefa.fi Sign up to view

Petri Vuori

CEO

p***@calefa.fi Sign up to view

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19 technologies detected · 2 decision makers · 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.

Calefa Oy's Position in the StackWho Database

• Calefa Oy is 1 of 3,122 semiconductors companies tracked in StackWho.
• 3,069 semiconductors companies in our database have verified decision-maker emails (98% of the cohort).
• 1,141 semiconductors companies are in the 11-50 employee range (same size as Calefa Oy).

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 Calefa Oy use?

Calefa Oy uses Outlook, Microsoft Office 365, Google Cloud Hosting, Google Maps (Non Paid Users), DoubleClick, Facebook Login (Connect), and 13 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Calefa Oy?

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

What industry is Calefa Oy in?

Calefa Oy operates in the semiconductors industry, headquartered in Finland. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Calefa Oy's contact data?

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