Vous avez cherché: hereinafter jointly and severally referred to (Anglais - Italien)

jointly and severally:
congiuntamente e solidalmente:

hereinafter jointly referred to as ‘the parties’,
in seguito denominati congiuntamente «le parti»,

signed jointly and severally
firma disgiunta

be jointly and severally liable
rispondere in solido

jointly and severally liable partner
garanzia in solido del socio

jointly and severally: € 25 million
in solido : eur 25 milioni

€25 million (jointly and severally)
eur 25 milioni (in solido)

jointly and severally: €13.37 million
in solido: 13,37 milioni di euro

(dimon to be jointly and severally liable);
(dimon responsabile congiuntamente e disgiuntamente)

jointly and severally with deltafina.: €30 million
in solido con la deltafina: eur 30 milioni

jointly and severally with universal corp.: €30 million
in solido con la universal corp.: eur 30 milioni

€48.30 million, jointly and severally liable with:
eur 48,30 milioni, di cui è responsabile in solido con:

(scc, sctc and tclt to be jointly and severally liable);
(scc, sctc e tclt responsabili congiuntamente e disgiuntamente)

€1.40 million jointly and severally on sphinx and sanitec europe
eur 1,40 milioni in solido alla sphinx e alla sanitec europe

jointly and severally: trans euro, team relocations ltd: €3 million
solidalmente: trans euro / team relocations ltd: eur 3 milioni

€2.94 million jointly and severally on villeroy boch belgium and villeroy boch
eur 2,94 milioni in solido alla villeroy boch belgium e alla villeroy boch

(mindo being jointly and severally liable only for €3.99 million)
(mindo responsabile solidale solo per eur 3,99 milioni)

valsabbia investimenti s.p.a. and ferriera valsabbia s.p.a., jointly and severally
valsabbia investimenti s.p.a. e ferriera valsabbia s.p.a., in solido

jointly and severally with plasticos españoles sa (aspla) (spain): €42 million
in solido con la plasticos españoles sa (aspla) (spagna) : eur 42 milioni