Parsons Reports First Quarter 2021 Results Q1 2021 Financial Highlights - Net income of $9 million and margin of 1.0% - Adjusted EBITDA of $69 million and margin of 7.9% - Book-to-bill ratio of 1.2x, driven by Critical Infrastructure book-to-bill ratio of 1.4x - Total backlog increased 4.7% from the first quarter of 2020 Strategic Highlights - Strong Q1 2021 with six contract wins over $100 million; great start to Q2 2021 with approximately $1 billion in contract wins in the quarter - Strong Braxton performance and integration - Recognized as a top employer by leading minority, women, and human rights organizations - Updated executive compensation policy to tie a portion to core values including diversity, integrity, safety, and sustainability