Virtual Office / Registered Address
A respected business address in Kadıköy Kozyatağı for the trade registry and tax office – one that looks good on your business card.
Learn More — Virtual Office / Registered AddressRegistered with the Istanbul Chamber of Commerce · 2011Reliable Virtual Office
Reliable Virtual Office
Solutions in Istanbul
Registered address, phone answering and secretarial services under one roof in Kozyatağı, a prestigious business district on Istanbul’s Asian side. Grow your company with low fixed costs and full legal compliance.
- Founded
- 2011
- Businesses served
- 2,000+
- Clear contract
- No Hidden Fees
Registered address and office services for more than 2,000 businesses since 2011
- 4.9
- Chamber of Commerce registered
- KVKK-compliant data protection
Our Services
Everything Your Company Needs
From company formation to day-to-day running: a registered address, professional call handling and physical workspace whenever you need it.
Secretarial & Phone Answering
Your calls are answered in your company’s name; your documents and mail are received on your behalf.
Learn More — Secretarial & Phone AnsweringServiced Office & Coworking
Furnished, ready-to-use offices and a flexible coworking space in Kozyatağı, among office towers and corporate headquarters.
Learn More — Serviced Office & CoworkingOnline Client Portal
Track your documents, invoices and mail notifications in one place through our client-only portal.
Log InWhy Open Up Office?
Clear Contract
No hidden fees; what is in the contract is what you get.
Fast Set-up
Address active within 24–48 hours.
Legal Compliance
Chamber of Commerce registered; fully compliant with tax office procedures.
Same-Day Response
Same business day response to applications; quick replies by phone and WhatsApp.
How It Works
Your Virtual Office in 5 Steps
Choose a Plan
Pick the Standard, Plus or Premium plan.
Send Documents
Sign the documents and send them to us by email or WhatsApp.
Contract
We prepare your contract and send it to you for signature.
Address Activation
Your address is ready to use within 24–48 hours.
Tax Office Registration
We support you throughout your company registration.
Pricing
Plans That Fit Your Needs
Choose the plan that fits your needs and we will send you a tailored quote the same business day. No set-up fee, no surprises.
Standard
Tailored Quote
- Registered address
- Mail and parcel handling
- VAT invoice instead of withholding tax
Plus
Tailored Quote
- Everything in Standard
- Phone answering & secretarial
- 2 hours of meeting room per month
Premium
Tailored Quote
- Everything in Plus
- 4 hours of meeting room per month
- 8 hours of coworking per month
Call us or send a message on WhatsApp for a tailored quote. All services are invoiced with VAT; no rent withholding tax applies.
4.9123 Google reviews
What Our Clients Say
Reviews most often mention our team’s care and friendliness, fast communication on WhatsApp and detailed guidance through the company formation process.
Read Reviews on Google
At PITAGEN we use Open Up Office's virtual and serviced office services. We are very happy with their service and especially with the team's attentiveness. Whenever we need support, they help us quickly and with a smile. Thank you to the whole Open Up Office team for helping us run our business with confidence.
PITAGEN Medical and Laboratory Products 
For MCAN Health, Open Up Office is not just a serviced and virtual office but a very strong partner that has always supported us through our growth. I am happy to recommend Open Up Office's serviced and virtual office services to any company.
mCan Health 
We have worked with Open Up Office for 7 years. They are a team that does its job professionally and follows instructions to the letter. Reporting incoming calls by email and keeping call recordings makes things much easier. It is great that, without missing a single call, they forward callers to our staff's mobile phones wherever they are, or share our email addresses. Thank you, Open Up Office.
ELTEKSAN 
Thanks to Open Up Office, we have cut our costs by up to 60%. We are very happy with the facilities and service. Friendly staff and a warm atmosphere are what everyone looks for these days, and you find them here. With the support of the Open Up Office family we keep growing, and we are very happy.
Konto Sayım 
Open Up Office has always been our primary supporter and solution partner. With its advanced technology, Open Up Office runs our call centre operations. The call centre's inbound and outbound calls contribute to our CRM and to the efficiency of our daily operations.
Bfit 
We have been using Open Up Call's virtual and serviced office since 2013. We are satisfied because of the excellent technical infrastructure and Open Up Call's know-how and service. This infrastructure makes everything easier in our work and simplifies our processes as a multinational company.
Alpmer Dienstleistungen 
We are very pleased with our long-standing partnership. Their approach, ease of communication and solution-oriented attitude have been the foundation of our six years of working together.
Catering Network Türkiye
Testimonials translated from Turkish.
Get the Right Address for Your Company Today
Apply in 10 minutes, hear back from us the same business day, and have your address active within 24–48 hours.