As of 2024, their current lineup consists of frontman David Sanchez, drummer Pete Webber, and bassist Nick Schendzielos.

They have gone through a number of personnel changes, with each album featuring a different lineup, and leaving Sanchez as the only remaining original member left in the band.

To date, Havok has released five studio albums – Burn (2009), Time Is Up (2011), Unnatural Selection (2013), Conformicide (2017) and V (2020) – and they are currently working on new music.

In December 2007, Havok, having just hired drummer Ryan Bloom that fall, sent a copy of their EP and a press kit to any metal label they could find.

The EP caught the ear of English extreme metal label, Candlelight Records, and soon after the band agreed to join them.

The success of Time Is Up has led the band to major tours opening for bands like thrash metal veterans Forbidden, alongside Revocation and White Wizzard; as well as tours opening for Sepultura, Death Angel, Anthrax, The English Dogs, the Casualties, Goatwhore, 3 Inches of Blood, Skeletonwitch, and Exhumed.

Havok was invited to open for Testament's 'Dark Roots of Thrash' tour at their Denver show after Overkill was forced to drop from the tour due to singer Bobby "Blitz" Ellsworth falling ill.[12] Fans were introduced to Havok's new bassist, Mike Leon (previously of Tampa, Florida metallers the Absence), after Jesse left the band to spend time with family.

The band set out on a 50 plus day headline tour to support "Unnatural Selection" with dates that lead up to the Montreal, Canada festival Heavy MTL on August 11.

[15] On September 22, 2015, the band announced that they had parted ways with bassist Mike Leon (who had joined Soulfly), and had replaced him with Nick Schendzielos from Cephalic Carnage and Job for a Cowboy.

[19] In a July 2018 interview with Sonic Perspectives, Sanchez stated that Havok was going to "stop touring soon" and begin writing a new album, which he had hoped would be released by the summer of 2019.

[24] On July 30, 2024, Reece Scruggs announced that he had left Havok after fourteen years as the band's lead guitarist, citing scheduling conflicts.