Ostsee-

What Ostsee- does

ATRIUM - Jan Kästner, operating commercially as Ostsee-und-Wellness.de, is a German sole proprietorship travel agency founded in 2002 and headquartered in Greifswald, Mecklenburg-Vorpommern. The business operates an online booking portal positioned as one of the leading German-language internet portals for wellness and vacation travel along the German Baltic Sea coast, covering eight sub-regions: Insel Rügen, Insel Usedom, Fischland-Darß-Zingst, Mecklenburgische Ostseeküste, Schleswig-Holstein, Mecklenburg-Vorpommern, Mecklenburgische Seenplatte, and Vorpommern, with city-level destination pages for approximately 40 locations.

The product portfolio centers on directly bookable vacation packages (Urlaubsangebote) and commission-free hotel brokerage (Hotelvermittlung), supplemented by regional wellness hotel portals, themed vacations (Themenreisen) including romantic getaways, health holidays, and holiday-season specials (Christmas, New Year, Easter, Whitsun), gift vouchers (Gutscheine) with three-year validity, and multi-destination Baltic Sea round trips (Ostsee-Rundreisen). The technology stack is a conventional web-based booking platform with booking forms, dynamic pricing display, and hotel presentation components, augmented by Google AdSense, Google Maps, Google reCAPTCHA, HolidayCheck review widget, YouTube plugin, and a Facebook page; there is no mobile app, no public API, and no disclosed AI/ML capabilities.

The revenue model is a single commission-based stream: ATRIUM earns affiliate/referral fees from partner hotels and takes no payment from customers, who pay hotels directly on arrival. Pricing varies by season and hotel category, ranging from approximately €65 per person per night for budget accommodations to €200+ for premium 5-star wellness hotels, with themed packages (e.g., New Year 5–6-night stays) priced at €1,069–€1,770 per person and weekly stays at €587–€1,548 per person. Go-to-market is direct-to-consumer via the website portal, a telephone hotline (Mo-Fr 08:00–21:00), and email inquiries, supported by a travel insurance partnership with HanseMerkur Reiseversicherung AG and a distributed network of partner hotels across the Baltic coast. The firm operates with approximately 6 employees, is privately held with no external investors, and reports no revenue or funding figures publicly.

Name

Ostsee-

Legal name

ATRIUM - Jan Kästner

Website

https://ostsee-und-wellness.de

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

ATRIUM operates Ostsee-und-Wellness.de, a commission-based Baltic Sea wellness hotel booking portal founded in 2002 in Greifswald, Germany. It connects German wellness and short-stay vacationers with partner hotels across eight Baltic coastal regions.

Ownership category

akta.pro rank

Product category

Travel Agency Services

NAICS

Tour Operators (56152)

akta.pro industry

PRIMARYTHAKAFAL

Island, Beach & Resort Travel Agencies

Travel & Hospitality/Travel Agencies, Tour Operators & OTAs/Specialty/Niche Travel Agencies (Luxury, Adventure, Honeymoon, etc.)

Keywords

• Wellness hotel booking
• Baltic sea vacations
• Travel agency services
• Spa holiday packages
• Wellness tourism

Headquarters

HQ city

Greifswald

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Marketing or Sales, Technology or R&D, Operations, Others

Revenue model

1. Hotel Commission / Referral Fees: ATRIUM acts as an intermediary between customers and hotel partners. For bookings, ATRIUM receives commission from partner hotels. The service is free for customers - no booking fees or intermediary charges. Payment is made directly to the hotel upon arrival.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

ATRIUM operates Ostsee-und-Wellness.de, a commission-free Baltic Sea travel agency portal that connects individual travelers with curated wellness hotels and vacation accommodations across eight Baltic Sea regions in Mecklenburg-Vorpommern and Schleswig-Holstein. Customers can book directly through the website, telephone hotline, or email inquiry, with payment made directly at the hotel upon arrival; ATRIUM earns commissions from partner hotels for bookings generated.

Product overview

Ostsee-und-Wellness.de operates as a commission-free Baltic Sea travel agency run by ATRIUM, offering a booking platform that connects travelers with partner hotels across eight Baltic Sea regions in Mecklenburg-Vorpommern and Schleswig-Holstein. The product portfolio centers on the Vacation Packages (Urlaubsangebote) platform, which provides directly bookable wellness hotel stays and themed vacation packages, supplemented by the Hotel Brokerage service for individual hotel reservations. Additional offerings include Theme Vacations (romantic getaways, health holidays, wellness weekends), Gift Vouchers with three-year validity, and custom Baltic Sea Round Trips combining multiple destinations. The company functions exclusively as an intermediary, forwarding booking requests to partner hotels with payment collected directly at the properties.

Differentiator

Problem solved

Functional benefit

Products and services

• Urlaubsangebote (Vacation Packages) Directly bookable vacation packages and wellness hotel offers for Baltic Sea destinations in Mecklenburg-Vorpommern and Schleswig-Holstein, including Rügen, Usedom, Fischland-Darss-Zingst, and the Mecklenburg Lake District. Targeted at individual wellness and leisure travelers seeking curated accommodations.
• Hotelvermittlung (Hotel Brokerage) Commission-free mediation of partner hotel bookings where ATRIUM acts as a travel agent, forwarding booking requests to partner hotels and handling confirmations. Payment is made directly at the hotel. For individual travelers seeking wellness hotel bookings.
• Themenreisen (Theme Vacations)

Quantifiable outcome

• Customers receive immediate booking confirmation via email after hotel acceptance
• +1 more outcomes

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered minor and core.

• HanseMerkur Reiseversicherung AGminorStrategic or Co-development PartnerATRIUM offers travel cancellation insurance through HanseMerkur Reiseversicherung AG as a recommended add-on for all bookings. The partnership provides customers with easy access to travel insurance during the booking process, protecting against cancellation fees and lost deposits.
• Wellness Hotels (Partner Network)coreChannel Partner/ Reseller/ DistributorATRIUM maintains partnerships with a network of wellness hotels, spa hotels, and vacation accommodations across the Baltic Sea region including Rügen, Usedom, Schleswig-Holstein, and the Mecklenburg coast. Hotels receive booking leads and customer inquiries in exchange for commission or preferred placement. The portal explicitly states hotels can join on a commission basis with no fixed costs or room block commitments.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Kurzurlaub.de: German online portal specializing in short-stay and themed vacation packages across hotels in Germany and neighboring countries. Closest direct peer — same commission-based online travel agency model, same German consumer target market, similar themed/package curation (Wellness, Romantik, Feiertage).
• Wellnesshotels.info: Specialized German-language OTA directory for wellness hotels with package curation across regions. Directly comparable vertical specialization in wellness travel, hotel-brokerage revenue model, and German DACH consumer target.

Broad incumbents

• trivago: German-founded global hotel meta-search engine owned by Booking Holdings. Aggregates hotel offers — same end-consumer attention layer as ATRIUM, capturing demand upstream of the booking transaction.
• Booking.com: World's largest online travel agency with dominant share in the German hotel booking market. Competes for the same end consumer searching for Baltic Sea hotels and exerts competitive pressure on commission economics for any regional travel intermediary.
• HRS (Hotel Reservation Service): Major German-headquartered hotel booking platform with broad European coverage. Overlaps as a hotel intermediary serving the German market with commission-based bookings, though HRS also covers corporate travel at much larger scale.
• TUI: Europe's largest integrated tourism group operating package travel, hotels, and OTAs across many markets. Broader portfolio player with bundle-style package travel that overlaps with ATRIUM's Baltic Sea themed vacation packages.
• TripAdvisor: Global meta-search and review platform with a hotel booking layer. Competes for the same upper-funnel Baltic Sea travel searches that drive ATRIUM's organic traffic, with broader scale and product breadth.

Emerging players

• Travelzoo: Curated deal/membership travel club publishing discounted travel offers to subscribers. Comparable on the themed-offer/discovery side (specials, holiday packages) rather than as a direct hotel broker — partial overlap on a smaller scale.

Others

• HolidayCheck: German-language hotel review and meta-search/booking platform. ATRIUM embeds HolidayCheck widgets for verified reviews, indicating a partnership/ecosystem relation rather than direct head-to-head competition, though there is partial overlap in hotel discovery and booking.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/OstseeundWellness
• LinkedInlinkedin.com/company/ostsee-

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ostsee-