| Pascaline | Achard | Rigot & Rieben engineering SA | | 1219 | Le Lignon | GE |
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| Roger | Ackermann | Ackermann Roger | | 8887 | Mels | SG |
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| Peter | Adam | Dipl. Architekt ETH/SIA | | 4102 | Binningen | BL |
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| Marco | Adamo | IWB Energieberatung | | 4002 | Basel | BS |
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| Vincent | Adamo | Optimisez.ch | | 1723 | Marly | FR |
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| Heinz | Aeberhard | Energieberatung Aeberhard | | 8595 | Altnau | TG |
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| Dieter | Aeberhard Devaux | dadarchitekten ETH HTL SIA | | 3014 | Bern | BE |
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| Ruben | Aebersold | MBJ Bauphysik + Akustik AG | | 3422 | Kirchberg | BE |
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| Michel | Aebi | RCS SA | | 6612 | Ascona | TI |
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| Christophe | Aebischer | PIERRE CHUARD FRIBOURG SA | | 1700 | Fribourg | FR |
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