Thanks to Aaron Smalser on the Microsoft Azure product team, I was pointed in the direction of this page that allows me to see the list of Azure AD pre-integrated apps that support SAML or WS-Federation. Thanks Aaron!http://social.technet.microsoft.com/wiki/contents/articles/20235.azure-active-directory-application-gallery-federated-saas-apps.aspx

As of this writing on 3/11/15, there are now 105 applications that support SAML or WS-Federation with Azure AD. That is double what was available on September 2nd 2014 (per Alex Simon’s blog article here). 

So out of the 2,460 total applications available in the gallery, or 2,355 that support “Password Single Sign-On” which is what I would describe as password vaulting, and 105 support federated sign-in. The latter is the most optimal experience in my opinion.

So in the 191 days between 9/2/2014 and 3/11/2015, Microsoft has added 55 new applications that support SAML or WS-Federation. That is about 1 new application every 3.5 days. That is impressive!

1    15Five
2    Abintegro
3    Adaptive Suite
4    Adobe EchoSign
5    AnswerHub
6    AppDynamics
7    ArcGIS
8    Ariett Purchase & Expense
9    Ariett Touch
10    AvePoint Meetings
11    BambooHR
12    Bime
13    BlueJeans
14    Bonusly
15    Boomi
16    Box
17    Canvas
18    Central Desktop
19    Cisco Webex
20    Citrix GoToMeeting
21    Citrix ShareFile
22    Clarizen
23    ClickTime
24    CloudBees
25    Colibri
26    Concur
27    Cornerstone OnDemand, Inc.
28    Coupa
29    Docusign
30    Dream Broker Studio
31    Dropbox for Business
32    e-Builder
33    Egnyte
34    Envoy
35    EventBuilder
36    FreshDesk
37    Freshservice
38    Gigya
39    Google Apps
40    Greenhouse
41    Huddle
42    IdeaScale
43    Infolinx
44    Innotas
45    InsideView
46    Intacct
47    ITRP
48    Jitbit Helpdesk
49    Jive
50    Kintone
51    Kontiki
52    Kudos
53    LogicMonitor
54    Lynda.com
55    Mimecast Admin Console
56    Mimecast Personal Portal
57    Mindflash
58    Mozy Enterprise
59    MyDay
60    NetDocuments
61    New Relic
62    OfficeSpace Software
63    PagerDuty
64    Panopto
65    Panorama9
66    Picturepark
67    Projectplace
68    Rally Software
69    Replicon
70    RunMyProcess
71    Salesforce
72    Salesforce Sandbox
73    Samanage
74    Sciforma
75    ScreenSteps
76    ServiceNow
77    ShiftPlanning
78    SmarterU
79    Smartsheet
80    SpringCM
81    SuccessFactors
82    SumoLogic
83    SumTotalCentral
84    Syncplicity
85    TalentLMS
86    Team Org Chart
87    TeamSeer
88    ThirdLight
89    Thoughtworks Mingle
90    ThousandEyes
91    Timestamp
92    UserVoice
93    Wikispaces
94    Work.com
95    Workday
96    http://www.insideview.com 
97    xMatters OnDemand
98    Zendesk
99    Zoho Mail
100    Zoom
101    Zscaler
102    Zscaler Beta
103    Zscaler One
104    Zscaler Two
105    Zscaler ZSCloud