Regular Expressions 101

\ban ASCII word boundary

Non-Capturing Group(?:[A-Z]\w+(?:\.com?)?[ -]+(?:&[ -]+)?){1,3}

{1,3}repeats the group contents below between 1 and 3 times:

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

\w+any word character, repeated at least once

Non-Capturing Group(?:\.com?)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

cothe literal text co (case sensitive)

m?optionally matches the literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

Character Class[ -]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:&[ -]+)?

?repeats the group contents below at most once:

&the literal & (38₁₀ / 46₈ / 26₁₆)

Character Class[ -]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

1st Alternativeltd

ltdthe literal text ltd (case insensitive)

2nd Alternativellc

llcthe literal text llc (case insensitive)

3rd Alternativeinc

incthe literal text inc (case insensitive)

4th Alternativeplc

plcthe literal text plc (case insensitive)

5th Alternativeco(?:rp)?

cothe literal text co (case insensitive)

Non-Capturing Group(?:rp)?

?repeats the group contents below at most once:

rpthe literal text rp (case insensitive)

6th Alternativegroup

groupthe literal text group (case insensitive)

7th Alternativeholding

holdingthe literal text holding (case insensitive)

8th Alternativegmbh

gmbhthe literal text gmbh (case insensitive)

\ban ASCII word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

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Search reference

Regular Expression

\b(?:[A-Z]\w+(?:\.com?)?[ -]+(?:&[ -]+)?){1,3}(?i:ltd|llc|inc|plc|co(?:rp)?|group|holding|gmbh)\b

Unit Tests

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