A Waltham startup is coming out of stealth mode today, with $8 million in funding. Cazena reunites several veterans of Netezza, a data warehousing startup that went public and then was acquired by IBM for $1.7 billion four years ago. The deal is unusual in that it's the first time California-based Andreessen Horowitz — the venture capital firm co-founded by the fellow who brought you the Netscape browser — has participated in a Series A round of funding for a startup here in Massachusetts. Andreessen Horowitz is investing alongside North Bridge Venture Partners, the Waltham VC firm. Read More