The Scotsman Graham & Sibbald scores a hit with ratings guru Tim Bunker 2017-04-03 - Timbunker Jim Spowart, who created and led several of the UK’S first challenger banks, is to join Business Stream as a non-executive director. Jim Spowart Harper Macleod, the law firm, has unveiled a new partner among a string of promotions across the country. Software development consultancy Scott Logic has appointed a new head of delivery to further scale the growing business. Matt Phillips Scottish Equity Partners (SEP) has announced two new appointments to its investment team. Chartered surveyor Graham & Sibbald has hired Tim Bunker to bolster its rating team in Scotland as the firm gears up for planned changes to the business rate regime.