For over 6 years in the 1990s and early 2000s, our team was at the core of Bank of America's systems integration group, designing, implementing, and supporting the software stack for the bank's nationwide retail branch banking network.  Our consulting team had the technical leadership and oversight of the design and development of the distributed LAN system image deployed at over 4,200 sites and servers and on 80,000 client workstations.  We provided Level 3 support on a year round basis (24 hours a day, 365 days a year).

As part of our engagement, we were deeply involved in shepherding the bank's retail branch software stack through several major mergers and acquisitions.  This included NationsBank's merger with Bank of America, as well as a number of regional acquisitions.

We leveraged server-managed client technology, implementing and supporting the first major and perhaps the largest ever installation of IBM's Workspace On-Demand product.  This engagement helped Bank of America achieve a massive reduction in the total cost of ownership of these systems.  The savings were measured in the many tens of millions of dollars, as verified by independent audit.

It was kind of a big deal at the time:
Article:  Infoworld, April 18, 1998
Article:  Sm@rtReseller, April 1, 1998