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Contact us

Use one of the links below, to contact Alter Ego Services by email, in English, French, German or Spanish.

Worldwide Public Holidays Licensing

to enquire about licensing data from the qppstudio worldwide public holidays database, the professional source of reference for the travel and tourism industry, international news services, finance and banking, telecommunications, shipping and logistics, the IT Industry, and governmental agencies, for the years 2025, 2026, 2027, 2028, and beyond.

Diary and Calendar Typesetting Automation

to contact us for additional information about Q++Studio, the diary and calendar software used by the foremost diary and calendar publishers of the world, since 1999, to automate the typesetting of diaries and calendars, reliably and efficiently, using the industry-standard InDesign and QuarkXPress formats.

General Enquiries

for general questions about data published on our site. Please make sure that your request is related to the information published on this website, and make your questions as specific as possible.


We always try to respond promptly to every enquiry, but please do not modify the subject of the generated email, otherwise your email might be stopped by our spam filter.