PROKEP Ofis · Bumerang Kartal Plaza, Istanbul

Set up your company,
leave the rest to PROKEP Ofis.

Registered address, mail and parcels, Registered e-Mail (REM), e-signature, financial seal, e-invoice, UETS and EYP: everything a new company in Turkey needs, under one contract, one invoice and one point of contact.

Apply now See the packages

Bumerang Kartal PlazaPrestigious registered address

24/7 securityYour mail and parcels are safe

REM and e-SignatureAuthorised application and registration centre

Why a virtual or serviced office?

Cost first: one service fee instead of the full burden of an office

With your own office, rent is only the start: withholding tax, deposit, agency fee, staff and utility bills all add up. With PROKEP Ofis you pay a single monthly fee instead.

From₺1,650per month
Paid annually, excluding VAT

Compared with renting your own officeup to 92%lower cost
Excluding service charges, withholding tax and bills

Get a tailored quote

One monthly service fee. No separate rent, service charge, electricity, water or internet bills.
No deposit or agency fee. No large cash outlay when you start.
No rental withholding tax. You receive a service invoice, not a lease; VAT is deductible.
No staff costs. Our team handles your mail, parcels and calls.
No set-up investment. Furnished, connected space, ready from day one.
Pay for what you use. Meeting rooms by the hour, desks by the day; grow your package as you grow.

Prestigious address

A Bumerang Kartal Plaza address makes a small company look established on cards and invoices.

24/7 security

Mail, parcels and official notices are received in a secure plaza; nothing is left at the door.

Save time

One meeting instead of separate applications for address, e-signature, financial seal, e-invoice and REM.

Flexibility

Start with a virtual office and move to a serviced office as your team grows, without changing your address.

Virtual office

For new companies whose teams work remotely or meet clients on site. Registered address, mail and parcels, digital infrastructure; meeting rooms when you need them.

Serviced office

For those who want to work from the office a few hours a week and host clients. Meeting room and co-working desk hours plus refreshments are included.

Come and see the office. We’ll show you around Bumerang Kartal Plaza over a coffee and work out your costs together.

Book a visit

92%: the monthly equivalent of the PROKEP_Sanal Başlangıç package paid annually (₺1,650) compared with the monthly rent of the smallest office listed for rent in Kartal (₺21,000, 32 m², Emlakjet, October 2026); service charges, withholding tax, deposit and running costs are not included. Please consult your accountant on tax matters.

New companies in Turkey

Eight separate obligations from day one

The day a company is founded it needs an address, a digital identity and official communication channels. The traditional way means a separate application and invoice for each.

Registered addressTrade registry and tax office inspection
e-SignatureFor directors: MERSİS, e-Government and contracts
Financial sealRequired for e-invoice, e-archive and e-ledger
e-Invoice and e-ArchiveNo paper invoices for balance-sheet taxpayers from 1 January 2026
REM addressFor formal notices and commercial notifications (TCC art. 18/3)
e-Notification (UETS)Mandatory for capital companies (Law 7201 art. 7/a)
Public correspondenceOfficial letters to public bodies via EYP
CommunicationPhone, mail and parcel handling

PROKEP Ofis covers them all in one package, set up by one team on one timeline.

Services

Everything a company needs

Address, digital identity and official communication channels under one roof. Dark cards can be added as you need them.

Registered AddressBumerang Kartal Plaza
Mail & ParcelsReceipt and notification
e-InvoiceMembership + credits
REMAccount + messages
e-SignatureQualified electronic certificate
Financial SealApproves e-invoices and e-ledgers
UETS–REMe-Notification integration
EYP ModuleOfficial public correspondence
Signing PlatformGet documents signed online
e-Archive · e-Waybill · e-LedgerAlongside e-invoice
PhoneDedicated company number and answering
Call CentreScalable operations

Alongside e-invoicing we also provide e-archive invoices, e-waybills and e-ledgers. We can provide a dedicated phone number for your company on request.

Packages

From virtual to serviced office, packages that fit your needs

Fill in the application form for a tailored quote and we’ll get back to you shortly.

Virtual office packages

Your address and digital infrastructure; work without coming to the office.

PROKEP_Sanal Başlangıç

Address, mail, parcels and REM

Registered address (Bumerang Kartal Plaza)
Mail receipt and notification
Parcel receipt
Registered e-Mail (REM) account

Get a quote

PROKEP_Dijital Başlangıç

A new company’s full digital identity

Everything in PROKEP_Sanal Başlangıç
e-Signature
REM message credits
Financial seal
e-Invoice membership and credits

Get a quote

PROKEP_Dijital Kobi

Including public and e-notification processes

Everything in PROKEP_Dijital Başlangıç
REM & UETS integration
EYP module
Signing platform access

Get a quote

Serviced office packages

Everything in the virtual office plus meeting room and co-working hours.

PROKEP_Hazır Başlangıç

Virtual office + meeting and desk hours

Everything in PROKEP_Sanal Başlangıç
4 hours of meeting room per month
12 hours of co-working desk per month
Tea, coffee and water when you’re in

Get a quote

PROKEP_Hazır Dijital

Serviced office + digital identity

Everything in PROKEP_Hazır Başlangıç
e-Signature
REM message credits
Financial seal
e-Invoice membership and credits

Get a quote

PROKEP_Hazır Kobi

Serviced office + full digital infrastructure

Everything in PROKEP_Hazır Dijital
REM & UETS integration
EYP module
Signing platform access

Get a quote

Corporate

PROKEP_Profesyonel

Any package content can be included, plus service, operations and a call centre that scale with your team and volume.

All virtual and serviced office package contents
Scalable service and operations support
Call centre (inbound/outbound calls, written channels)
Dedicated company phone number
Desks, private offices, seats and dedicated areas

Request a corporate quote

Workspace

From virtual to physical office, as much as you need

Grow your workspace with your company at Bumerang Kartal Plaza, secured 24/7. A 15-person meeting room, private offices and a 32-desk work area.

Illustrative floor plan

Dedicated AreaA space reserved for your team
Desk RentalBy the hour, day or month
Meeting Room15 people, hourly or daily
Seat RentalFully equipped workstation

Location

A sea-view office right opposite the courthouse

Bumerang Kartal Plaza stands right opposite the Istanbul Anatolian Courthouse, close to the Kartal Koşuyolu Specialist and Dr. Lütfi Kırdar hospitals, a few steps from the M4 Hastane–Adliye metro station and the D-100 (E-5) highway.

Sea and island views

A bright workspace overlooking the Sea of Marmara and the Princes’ Islands.

Courthouse right opposite

Lawyers, mediators, experts and debt-collection firms can walk to their hearings.

Close to hospitals

Kartal Koşuyolu Specialist and Dr. Lütfi Kırdar hospitals nearby; ideal for healthcare businesses.

Metro and D-100

Easy access from across the Asian side via the M4 Hastane–Adliye station and the D-100 (E-5).

How it works

Four steps from contract to your first invoice

01Address
You sign the PROKEP Ofis contract and register your company at Bumerang Kartal Plaza.
02Identity
Directors receive e-signatures; the company receives a financial seal.
03Channels
REM, e-invoice, UETS integration and EYP are activated.
04Operations
Mail, parcels and calls start flowing; you focus on your business.

Why PROKEP Ofis

Backed by an authorised digital trust team

PROKEP Ofis is run by an experienced team working as an application centre, registration authority and corporate solutions centre of TÜRKKEP, a Registered e-Mail (REM) service provider authorised by the Turkish ICT Authority (BTK) and a private integrator approved by the Revenue Administration (GİB).

FAQ

Frequently asked questions

Can I register my company at a virtual office address?

Yes. With a PROKEP Ofis contract you can use our Bumerang Kartal Plaza address as your registered business address for the trade registry and tax office. We assist with the tax office inspection.

What is the difference between a virtual and a serviced office?

Virtual office packages cover your address, mail, parcels and digital infrastructure. Serviced office packages add 4 hours of meeting room and 12 hours of co-working desk use per month, plus refreshments.

What happens to my mail and parcels?

We receive your mail, parcels and official notices on your behalf and notify you immediately. We can scan and send documents, forward them or hand them over at the office.

Which e-documents do you provide besides e-invoices?

Alongside e-invoicing we provide e-archive invoices, e-waybills and e-ledgers, with set-up and user support.

Can my company have a dedicated phone number?

Yes. We can provide a dedicated phone number, answer calls in your company’s name and forward them to you.

What if I run out of credits or REM messages?

Additional credits and REM message packages can be added at any time, so your service continues without interruption.

Set up your company,
leave the rest to PROKEP Ofis.