| André Hennen | |
| André Rohrmüller | digitale medien | Baden-Württemberg |
| Andrea Weber | Baden-Württemberg |
| Andreas Breitschopp Softwareberatung und -entwicklung | Bavaria |
| Andreas Geiger | |
| Andreas Horvath Informationstechnologien | Bavaria |
| Andreas Kempf | Hamburg |
| Andreas Mayer IT-Services | North Rhine-Westphalia |
| Andreas Recek Designer | North Rhine-Westphalia |
| Andreas Rieder | North Rhine-Westphalia |
| Andreas Rodeck Webdesign | Hesse |
| Andreas Sandmann | Hesse |
| Andreas Unkelbach | Hesse |
| Andrzejewski | Berlin |
| Andtek GmbH | Bavaria |
| Andus Electronik GmbH | Berlin |
| ANGEL Internet Services GmbH | North Rhine-Westphalia |
| Angelize Program GmbH | |
| Angerland-Data GmbH | North Rhine-Westphalia |
| Angular.Schule | Baden-Württemberg |
| Animate | Hesse |
| Anja Braun Webdesign + ‑entwicklung | Baden-Württemberg |
| Ankercloud GmbH | |
| AnkhLabs GmbH | |
| Anne Wiesmann & Andrea Lissek GbR | Schleswig-Holstein |
| annea.ai GmbH | |
| Another One GmbH | Hamburg |
| ANOVA GmbH | Mecklenburg-Vorpommern |
| antares Computer Company | Berlin |
| Antaro GmbH | Lower Saxony |
| ANTEK GmbH | Baden-Württemberg |
| Antennen Electronic Braun GmbH | Lower Saxony |
| ANTENNENTECHNIK Bad Blankenburg GmbH | Thuringia |
| Anti-Spy.Info | Saxony-Anhalt |
| ANTITOXIN GmbH | |
| Antonics ICP GmbH | Brandenburg |
| Antswar | Bavaria |
| Anturec Pharmaceuticals GmbH | |
| Anuk GmbH | North Rhine-Westphalia |
| Anuvito GmbH | Thuringia |
| anvajo | |
| Anybill | |
| AnyDesk Software GmbH | Baden-Württemberg |
| anykey GmbH | North Rhine-Westphalia |
| anyMOTION GmbH | North Rhine-Westphalia |
| Anynines GmbH | Saarland |
| Anyplace IT GmbH | |
| anyWARE AG | Rhineland-Palatinate |
| AO Design | Bavaria |
| AOA Apparatebau Gauting GmbH | Bavaria |