What technologies does Calenso use?

Calenso uses SendInBlue, Gmail, Google Apps, Microsoft Office 365, Sendgrid. View their full technology stack — including all 31 detected tools — on StackWho.

Who is the CTO of Calenso?

Patrick Breiter is the CTO at Calenso. Get verified contact information on StackWho.

Who is the CEO & Co-Founder of Calenso?

Marvin Felder is the CEO & Co-Founder at Calenso. Get verified contact information on StackWho.

Where is Calenso located?

Calenso is based in Lucerne, Lucerne, Switzerland.

Calenso

calenso.com

information technology & services

calenso.com

Lucerne, Lucerne, Switzerland

11-50 employees

LinkedIn Profile

About Calenso

appointment, online booking, terminvereinbarung, bookingtool, customer journey, leadgenerierung, scheduling, enterprise software, saas, software development, real estate, computer systems design and related services, b2c, branchenspezifische lösungen, information technology and services, healthcare, online-terminvereinbarung, online-bezahlung, healthcare software, terminmanagement

Calenso's Tech Stack

AI/ML

Decision Makers at Calenso

2 contacts

Patrick Breiter

CTO

p***@calenso.com Sign up to view

Marvin Felder

CEO & Co-Founder

m***@calenso.com Sign up to view

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31 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.

Calenso's Position in the StackWho Database

• Calenso 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).
• 198 companies in Lucerne are in the StackWho database.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as Calenso).

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 Calenso use?

Calenso uses SendInBlue, Gmail, Google Apps, Microsoft Office 365, Sendgrid, Stripe, and 25 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Calenso?

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

What industry is Calenso in?

Calenso operates in the information technology & services industry, headquartered in Lucerne, Lucerne, Switzerland. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Calenso's contact data?

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