Google sheet is full of many features and especially regexes, commonly called regular expressions. Their fields of use are very varied and allow you to process large volumes of databases. Regexes are perfect for refining the information of your prospects before launching your prospecting campaigns. Let’s see how to use them to improve the quality of your copywriting or your lead or account targeting.

Regex: definition

Regular expressions or regexes allow you to differentiate one sequence of characters from another.

It is a syntax that allows, among other things, to clean large databases and to remove information that is not useful.

The best known use of regex is in forms. Here is an example in the contact form.

Let’s imagine that we have a contact form on our site asking :

  • last name
  • first name
  • email

All fields are required to submit the form.

Something very common is that a user adds an email address that is not in the “correct” format, for example :

  1. jonathan@gmail.

Regexes can identify that the email is not properly formed, this is pure semantic analysis.

A human being is able to tell that (1) is not correct because something is missing after the “. With a regex, we can create a rule that says “if there is nothing after the dot, then the email is no good“. Same for (2) and (3).

Now that you understand this, let’s see how to use it in the context of a lead or account database.

Your lead list contains emails?
But they may contain errors or mistakes. By using regexes, you can identify and even automatically correct the errors and thus reduce the rate of bounces and spamming.

Your list contains personal emails? #Rgpd
With regexes, you can indicate that expressions containing “@gmail” or “@hotmail” must be removed from the list to avoid contacting personal emails and thus comply with the RGPD requirements.

The list of possibilities is endless, we will talk about 3 elements that you can implement right now on your databases on Google Sheet.

If you use Derrick, it is easy to :

  • Preparing regex formulas;
  • Import a list with Derrick’s LinkedIn lead import;
  • Directly process leads in 1 blink of an eye with regexes.

➡️ Let’s take a step back:

The difference between a classic search and regex
When processing a document, it is possible to go through the classic “Ctrl+F” or “Cmd+F” search. However, this filter is too limited to process a lot of data. Regexes offer the possibility to retrieve specific character variations.

In the example below, you can see that you can easily find all the gmail, but you will have to do the same for yahoo, hotmail, etc. and replace by hand each time.

It can be very time consuming especially if you can do everything automatically 😉

regex commande recherche

Regular expressions are great for dealing with large databases. Let’s see in the next points the 3 formulas available on Google Sheet of regex to clean up your databases as much as possible.

Regex & Google Sheet : the main formulas

At first sight, it may seem a bit complex, but it’s a much easier language to understand than English, it’s actually quite basic.

I recommend this training if you want to learn.

I recommend this training if you want to get trained.
Get started now⬇️


There are 3 main forms you can use in Google Sheet.


The REGEXMATCH function indicates if the result of your formula is TRUE. In other words, if the text on which you apply your regex meets the requirement of this one or not.

Example of using REGEXMATCH to validate that phone numbers are correct in our database.

1st step: define what a phone number looks like

Here are the possible cases in the case of French numbers:

  • 06 47 47 47 47
  • 0647474747
  • +33647474747

2nd step: isolate the common patterns

  • There are at least 8 digits and maximum 11 digits, but only if the character sequence starts with a “+” ;
  • There can be spaces between the digits or dots;
  • the sequence starts with a 0 or a +.

We have defined our patterns, it’s time to translate them into regex. I’ll skip the explanation but I’ll translate our patterns into regex.

Here is a nice and simple tool to check that your regexes are working: https: //


Here is the regex :


This is what I get when I use the RegexMatch function of Google Sheet:


In TRUE: Valid french phone numbers.
In FALSE : Invalid French telephone numbers.

Now imagine doing this on hundreds of leads, for emails, phone numbers or any other data.


The REGEXEXTRACT formula allows you to extract a part of a cell’s text from a regular expression. With Derrick for example, you can retrieve the bio of your leads’ LinkedIn profiles. This bio is a gold mine of information, sometimes there are numbers or emails of information. Regexes will allow you to extract them automatically without having to read the bio of each of your leads and extract them by hand!

Example of using REGEXEXTRACT to find an email in a bio

1- Start by importing your leads with Derrick (here is a video explanation).

Screen Recording 2022-07-29 at 12.36.13 PM

2- Same as for RegexMatch, let’s first define what an email looks like.


3- The patterns :

Sequence of characters without space then “@ then sequence of characters then “.” then sequence of characters.

4- Back to

There are more or less “perfect” regex, for the example I went to the essential.


Here is the regex:


Here is what I get when I use the Regex Extract function of Google Sheet on the summary column of Derrick. Result on the “email in summary” column.

googlesheet regexextract

NB: here is the exact formula to have empty boxes instead of #NA.



The REGEXREPLACE function allows to replace a part of a text with a regular expression.

Example of using REGEXREPLACE

To remove the S.A, S.A.R.L EURL etc from the names of companies. This will be very useful for your copywriting! Who is not tired of being burned in cold email?

“Hello Sir, I saw that you work at Super Entreprise S.A.R.L

regexreplace S.A.R.L
“Hello Sir, I saw that you work at Super Enterprise”

➡️ Disqualified

What if we could clean this up in a split second. Here we go!

1- Start by importing your companies with Derrick (here’s an explanation video)

Screen Recording 2022-07-29 at 01.48.32 PM

2- You have understood the following

  • SARL
  • SAS
  • EURL
  • S.A.S
  • S.A.R.L
  • ..

3- Our patterns

  • sequence of characters
  • the sequence of characters is in uppercase
  • the sequence of characters is finished SAS,SARL,..

4- Here is the very simplified regex


This is what it looks like when I use the Google Sheet Regex replace function on Derrick’s CompanyName column.


TUTO : Clean a Derrick database with regexes

As you can see, regexes are essential to process large databases quickly. Start by building your new list of leads with Derrick.

Step 1: Download and install Derrick on Google SheetDerrick
is a free application that installs directly on your Chrome browser. It allows you to retrieve your leads’ data directly from LinkedIn Sales Navigator

🚀Export your lead lists for free with Derrick!
Start now⬇️


Step 2 : Scrape leads or companies on Linkedin Sales Navigator to your Google Sheet document:

  • Method 1: scrape leads
  • Method 2: scrape companies

Step 3: Enriching enterprise data

Once all this work is done, you can start cleaning up your database using regexes.

Example: in the list below, I want to find companies that specialize in SEO. Thanks to the data enrichment (Step 3), Derrick has retrieved the hashtags associated with the LinkedIn pages of the companies “Company associated hashtags (linkedin)“. So I will use the regular expression “seo” with the REGEXMATCH formula.

I insert a new column next to the one containing the “Company associatedhashtags(linkedin)” hashtags.

enrichissement données entreprises

I use the REGEXMATCH formula :

regexmatch formule

I stretch my formula and get only the companies containing the regular expression “seo”. This is easily identified with the data TRUE or FALSE. Here, I will filter only on TRUE to have only the companies specialized in SEO.

regex filtres
regex appliquer filtres

Once the filter is applied, I end up with a list of all the companies that work in SEO. I can save my new list to work on my prospecting.

regex nouvelle liste

The potential of these simple functions is enormous for database processing. There are also syntax rules with regexes that you can use to further refine your information

If you have any questions about the formulas, feel free to ask us in comments.


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