1.
A B A Insurance Services Ltd
1993
2.
A J Bell
1995
3.
ABL Health
2009
4.
Acorn Insurance
5.
Aegon
1983
6.
Afex
1979
7.
Affigo.io
2015
8.
Age-Friendly Design Group
9.
AINOSTICS
10.
AKL Research & Development
2013
11.
Akzo Nobel UK Pension Scheme
1792
12.
Allergi
2019
13.
Allied Irish Bank
14.
American Express
1900
15.
American International Group
1919
16.
Aon plc.
1919
17.
APIS Assay Technologies
2018
18.
Appleton Gerrard Private Wealth Management
2010
19.
Applied Research Centre at University of Manchester
20.
Arbuthnot Latham & Co., Limited
1833
21.
Arch Insurance
2002
22.
Arlington Medical Consultancy
2010
23.
AstraZeneca
24.
AXA
25.
B-North
2018