Bedrift A - Lierskogen
- Atari AS
- Autotech AS
- Aabo AS
- Agihuga AS
- Askama AS
- Automatpack AS
- Agaia AS
- Aspendos Pizza DA
- Ayesha Ahmed
- Astrid Bergan
- Arek Podlaski
- Andrzej Gastonski
- ABC Consult AS
- Auma Scandinavia NUF
- Agaia Group AS
- Asisa Invest AS
- Avenue Eiendom AS
- Aaland Consulting
- Abdul Sattar
- At Transport AS
- Aqua Victoria AS
- Alibaba Telecom/Lier
- Asent Gruppen AS
- Autonome Hjem AS
- Aa-Gruppen AS
- Atlas Nordic AS
- AS Kino Liertoppen
- Actic Liertoppen
- Aktieselskapet Råstoff
- AS Optima Rådgivning
- Askerkoret Mellomstemt
- Ark Bokhandel
- A&C Oslo AS
- Aurdel Norway AS
- Attila Gyorgy Ink
- Arne Martin Bryhn
- Aass-Kam Invest AS
- Anne Marit Børmarken
- A. Skarstein Holding AS
- AQUA Unique Norge AS
- Anabo 956 Holding AS
- Aqua Unique Production AS
- Anton Sport Liertoppen
- Apotek 1 Liertoppen
- Anundskås Jan Thore
- Alfaklinikken Charlotte Torgersen
- Astu Photography Asta Sneideryte
- ABC Consult Kåre Gustavsen
- Asker & Bærum Glasservice
- Actavis Group Ptc Ehf.
- AS Majetic Rør og bygg
- Asker Bygg og Maling Marek Busa
- Apotek 1 Liertoppen Syd Inngang A