Home » News » Crawford Schools owner AdvTech talks up online school launch Crawford Schools owner AdvTech talks up online school launch Leave a Comment / News / By InterWeb SA / August 31, 2020 August 31, 2020 Listed private learning group, AdvTech, on Monday reported a 13% rise in revenue for the six months ended June 2020 to R2.829 billion, while launching its online school, Evolve, in the period under review.