| API Machinery | @lavalamp Daniel Smith, Google @deads2k David Eads, Red Hat
 | Group | #sig-api-machinery | Every other Wednesday at 11:00 AM PST | 
| Apps | @michelleN (Michelle Noorali, Deis) @mattfarina (Matt Farina, HPE)
 | Group | #sig-apps | Mondays 9:00AM PST | 
| Auth | @ericchiang (Eric Chiang, CoreOS) @liggitt (Jordan Liggitt, Red Hat)
 @deads2k (David Eads, Red Hat)
 | Group | #sig-auth | Biweekly Wednesdays at 1100 to 1200 PT | 
| Autoscaling | @fgrzadkowski (Filip Grządkowski, Google) @directxman12 (Solly Ross, Red Hat)
 | Group | #sig-autoscaling | Biweekly (or triweekly) on Thurs at 0830 PT | 
| AWS | @justinsb (Justin Santa Barbara) @kris-nova (Kris Nova)
 @chrislovecnm (Chris Love)
 @mfburnett (Mackenzie Burnett)
 | Group | #sig-aws | We meet on Zoom, and the calls are scheduled via the official group mailing list | 
| Big Data | @foxish (Anirudh Ramanathan, Google) | Group | #sig-big-data | Wednesdays at 10am PST, link posted in the official group. | 
| CLI | @fabianofranz (Fabiano Franz, Red Hat) @pwittrock (Phillip Wittrock, Google)
 @AdoHe (Tony Ado, Alibaba)
 | Group | #sig-cli | Bi-weekly Wednesdays at 9:00 AM PT on Zoom | 
| Cluster Lifecycle | @lukemarsden (Luke Marsden, Weave) | Group | #sig-cluster-lifecycle | Tuesdays at 09:00 AM PST on Zoom | 
| Cluster Ops | @zehicle (Rob Hirschfeld, RackN) @mikedanese (Mike Danese, Google
 | Group | #sig-cluster-ops | Thursdays at 1:00 PM PST on hangouts | 
| Contributor Experience | @grodrigues3 (Garrett Rodrigues, Google) @pwittrock (Phillip Witrock, Google)
 @Phillels (Elsie Phillips, CoreOS)
 | Group | #wg-contribex | Biweekly Wednesdays 9:30 AM PST on zoom | 
| Docs | @pwittrock (Philip Wittrock, Google) @devin-donnelly (Devin Donnelly, Google)
 @jaredbhatti (Jared Bhatti, Google)
 | Group | #sig-docs | Bi-weekly on Tuesdays @ 10:30AM PST on Zoom | 
| Federation | @csbell (Christian Bell, Google) @quinton-hoole (Quinton Hoole, Huawei)
 | Group | #sig-federation | Bi-weekly on Monday at 9:00 AM PST on hangouts | 
| Instrumentation | @piosz (Piotr Szczesniak, Google) @fabxc (Fabian Reinartz, CoreOS)
 | Group | #sig-instrumentation | Thursdays at 9.30 AM PST | 
| Network | @thockin (Tim Hockin, Google) @dcbw (Dan Williams, Red Hat)
 @caseydavenport (Casey Davenport, Tigera)
 | Group | #sig-network | Thursdays at 2:00 PM PST on Zoom | 
| Node | @dchen1107 (Dawn Chen, Google) @derekwaynecarr (Derek Carr, Red Hat)
 | Group | #sig-node | Tuesdays at 10:00 PT | 
| On Prem | @josephjacks (Joseph Jacks, Apprenda) @zen (Tomasz Napierala, Mirantis)
 | Group | #sig-onprem | Every two weeks on Wednesday at 9 PM PST / 12 PM EST | 
| OpenStack | @idvoretskyi (Ihor Dvoretskyi, Mirantis) @xsgordon (Steve Gordon, Red Hat)
 | Group | #sig-openstack | Every second Wednesday at 5 PM PDT / 2 PM EDT | 
| PM | @apsinha (Aparna Sinha, Google) @idvoretskyi (Ihor Dvoretskyi, Mirantis)
 @calebamiles (Caleb Miles, CoreOS)
 | Group | #kubernetes-pm | Every two weeks on Tuesday 8:00 AM PST/4:00 PM UTC | 
| Scalability | @lavalamp (Daniel Smith, Google) @countspongebob (Bob Wise, Samsung SDS)
 @jbeda (Joe Beda)
 | Group | #sig-scale | Thursdays at 09:00 PT | 
| Scheduling | @davidopp (David Oppenheimer, Google) @timothysc (Timothy St. Clair, Red Hat)
 | Group | #sig-scheduling | Alternate between Mondays at 1 PM PT and Wednesdays at 12:30 AM PT on Zoom | 
| Service Catalog | @pmorie (Paul Morie, Red Hat) @arschles (Aaron Schlesinger, Deis)
 @bmelville (Brendan Melville, Google)
 @duglin (Doug Davis, IBM)
 | Group | #sig-service-catalog | Mondays at 1 PM PST | 
| Storage | @saad-ali (Saad Ali, Google) @childsb (Brad Childs, Red Hat)
 | Group | #sig-storage | Bi-weekly Thursdays 9 AM PST (or more frequently) on Zoom | 
| Testing | @spiffxp (Aaron Crickenberger, Samsung) @ixdy (Jeff Grafton, Google)
 | Group | #sig-testing | Tuesdays at 9:30 AM PT | 
| UI | @romlein (Dan Romlein, Apprenda) @bryk (Piotr Bryk, Google)
 | Group | #sig-ui | Wednesdays at 4:00 PM CEST | 
| Windows | @michmike77 (Michael Michael, Apprenda) | Group | #sig-windows | Bi-weekly Tuesdays at 9:30 AM PT |