One thing we’ve always looked for in our customer relationships is the founder mentality. That is where we’re most aligned - no bureaucracy, high speed, quality execution. So that’s something that we’re looking for in these deals, that founder mentality.
So I’ll also break down the numbers a little bit here. Dave already mentioned that less than 1% of our revenue came from this program in Q2. Additionally, of the $925 million of total TCV in Q2, $543 million from this program. This is a long-term strategy, and the deals are long-term as well. So we expect longer duration and time to revenue recognition.
The portion of the Q2 TCV outside of the strategic investments is also strong, totaling $382 million. This grew at a sequential rate of 33% quarter-over-quarter. So in other words, assume no investment program, TCV grows 33% sequentially from last quarter. So very pleased with that.
And we signed a lot of great institutions, SC Edison, National Grid, Avis, John Deere, Bass Pro, BNY Mellon, the FAA. We expanded with the U.S. Army, Air Force, Coast Guard, CDC, HHS, Tiberius, which as you probably know by now, the U.S. government uses to track vaccine production, distribution and administration. And last but not least, we did a $100 million expansion with the United States Special Forces.
Rodney Nelson - Head of Investor Relations
Great. Thanks, Kevin. Dave, coming to you with this next one. Lyn asks, when does Palantir expect to report positive GAAP EPS?
David A. Glazer - Chief Financial Officer
Thanks, Lyn. We are delivering high growth with strong cash results and very few institutions can do that at our scale. Two numbers we focus on a lot: revenue and our ability to generate cash from that revenue, which is measured by adjusted free cash flow. In the first half of this year, we had 49% revenue growth, with 28% adjusted free cash flow margin. And we raised our full year adjusted free cash flow outlook by 100% to in excess of $300 million from our prior guidance of $150 million.
Rodney Nelson - Head of Investor Relations
Great. Thanks, Dave. Shyam, coming back to you, Mohammad asks, how fast is the business growing and what are some possible competitive threats to Palantir?
Shyam Sankar - Chief Operating Officer
Thanks, Mohammad. So for the first half, we grew revenue 49%. We generated a 28% adjusted free cash flow margin and a 33% adjusted operating income margin. Our commercial customer count grew 32% sequentially. It’s up 61% since the beginning of the year. Our U.S. commercial revenue grew 90% year-over-year. The international commercial revenue is accelerating. Our healthcare work is growing.