A takeover involving two giants of the private-finance initiative (PFI) market could be back on course. City investors in construction and support services group, Alfred McAlpine, have called for the board to rethink a takeover bid tabled by Carillion. McAlpine had originally rejected a £584m bid for undervaluing the firm, but City investment funds Schroders and New Star Asset Management have signalled they will accept the offer. A spokesman for Carillion, whose projects include Tate Modern, said: ‘A combination of the two companies would present an excellent strategic fit.'