On December 8 last year, guests packed a meeting room in Dublin’s Fitzwilliam Hotel for a pitching session by Spark Venture Funding’s stable of companies looking for investment. The firm regularly holds such invitation-only events for start-ups to present to potential investors connected to its platform.  After a few Christmas drinks in the low-ceilinged venue, the atmosphere was feverish. The mostly male audience sat down to listen to the pitches. The event had all the ingredients of a start-up roadshow, from slick slide decks to triple-digit revenue growth projections. Among the companies currently raising funds through Spark, Nazaré Point pitched…