1.

Artos Systems 2018

2.

ArtuData 2014

3.

Aruws

4.

Arwen AI Limited

5.

Ascential

6.

Asgard

7.

Ashbury Click

8.

ASK AMA 2018.0

9.

Asklogix

10.

Assettrac

11.

Assetway

12.

Assist AI 2015

13.

Assure360

14.

AstraZeneca 1999-04-06

15.

Atelier Global Sales Consultancy

16.

Athena AI

17.

Atlas 2017-07-13

18.

Atoa

19.

Atom Bank 2013-07-31

20.

Atom Consultancy Services

21.

AtomX Digital

22.

Attio

23.

AudienceRate Ltd 2010

24.

Audit Intelligence

25.

AuditWare Systems Limited 1987