For more information, see Arabella Advisors
Arabella Acquisition LLC is a private Illinois corporation listed as the controlling entity for Arabella Advisors, a consultancy to left-of-center foundations and donors based in Washington, D.C.  Arabella Advisors in turn manages a network of nonprofits whose collective revenues totaled nearly $1.7 billion in 2020 alone.  This “dark money” network in turn controls a vast collection of activist groups and websites working on center- and far-left political causes. However, few details about Arabella Acquisition are known.
A related corporation, Arabella Advisors Holdings, is also listed as the controlling entity for Arabella Advisors in Illinois; the relationship between the two holding companies is unknown, but the former is believed to be a holding company for Arabella Advisors.