Londons PO Box & Mail Forwarding Experts

(Est. 1925)We are London’s longest established mail & call handling company.

Our service plans include a full London Street Address service, a popular PO Box option,
Virtual PA Telephone Call Answering and a fully integrated Virtual Office service.

Our services     About us     Contact us     Testimonials



PO Box

Personal or Business
UK / Worldwide Forwarding
Scan & Email Option



Virtual P.A.

Messages Taken
UK & International
Call Patching



Virtual Office

WC1 Address &
0207 Call Answering
Inc. Company Registered Office


Cost-effective. Flexible. Confidential.  

Why you should choose us.
You can trust us to handle your personal/business mail or calls flexibly, confidentially and securely.

In this business since 1925 we are London’s most experienced mail and call handling company.

Clear, open, honest prices.
Our pricing policy is simple. Honesty is the best policy.

So with us they’ll be no hidden extras or nasty surprises – not always the case with some other companies we could mention.

Pop in to see us at our offices.
We’re here every weekday at Monomark House, 27 Old Gloucester Street, London WC1N 3AX.

We’d be delighted to meet you and show you how our services could really help and save you money.

We are open 9 am – 5.30 pm weekdays excluding Bank Holidays.

How to find us.
Our offices are convenient for Piccadilly Line tubes Holborn and Russell Square. Bus routes that stop near us on Southampton Road are 59, 68, X68 and 188 or, if you’re feeling flush, why not jump into a taxi?

About Monomark House.
We’ve been operating from our offices at Monomark House since the early 1970’s. Our original offices were in High Holborn way back in 1925. A great deal may have changed in our 90 years in business, but you can be sure, our great deals haven’t.

No hidden charges.
With us you can rely on our clear, open and honest pricing policy with no hidden or unexpected charges.

Our prices
If you’re interested you can find all of our prices by clicking HERE.

What our customers say about us…


cloud2I have just started using your scan and email service and was pleasantly suprised when I received a second email today, with what I assume was the second post. Great service – keep it up.

Mr. P HargreavesStreet Address Service



If you need a letter or package delivered anywhere in the world then trust the Monomark ‘A’ Team – Raymond and Yvonne – cue the ‘A’ Team music…

Dr. BTStreet Address Service



I have, over many years, been given an excellent, friendly and helpful service by the staff of BM. I particularly value the kindness in things done for me during my illness.

Michael GEx street Address Customer