Newly Formed Companies in the Guernsey Area
The GY postcode area covers Guernsey and a wider collection of local districts, each adding something different to the area's geography. Its character can be seen through places including Saint Peter Port, Saint Sampson, Vale, Saint Martin, Castel, Saint Andrew and Saint Pierre Du Bois.
The GY area covers Guernsey and nearby Channel Islands communities. Island government, finance, tourism, harbours, coastal scenery, agriculture, ferries and local business life shape the area.
The strongest concentrations of company activity in GY include districts such as GY1, GY2, GY3, GY4, GY5, but the postcode area itself is broader than those locations alone.
Here, we highlight newly formed companies and recent Companies House registrations connected with GY postcode addresses. As of June 2026, GY is one of the smaller postcode areas by company numbers, ranking 124th out of 128 with 0 companies.
Although GY has fewer companies than larger urban postcode areas, it still provides a clear way to group recent incorporations by location.
When a company is registered, its registered office address is the publicly visible location of the company and the company has to legally be able to receive post at this address. Over 2,000 companies every day (sometimes over 3000) get formed. These are in England, Scotland, Wales and Northern Ireland.
We analyse whether a registered office has a valid UK postcode that we can get grid co-ordinates for distance calculations and make sure the company has not closed down since it formed. You can then contact these people in the Guernsey (GY) area, who may be interested in receiving your marketing message offering your services under the legitimate interest rules of GDPR (assuming you are marketing to companies who you feel have a potential interest in your services, either geographically or by category). Marketing is by post because it is a brand new company that won't have a business telephone number or business email address (and even if they have, its not part of the data collected and made available by Companies House)
Guernsey is made up of the following towns and villages
Postcode Districts in Guernsey (GY)
| District | Description | Region |
|---|---|---|
| GY1 | Saint Peter Port | Guernsey |
| GY10 | Sark | Guernsey |
| GY2 | Saint Sampson | Guernsey |
| GY3 | Vale | Guernsey |
| GY4 | Saint Martin | Guernsey |
| GY5 | Castel | Guernsey |
| GY6 | Vale, Saint Andrew | Guernsey |
| GY7 | Saint Pierre Du Bois, Saint Saviour | Guernsey |
| GY8 | Forest, Torteval | Guernsey |
| GY9 | Alderney | Guernsey |