Project/CRM/Task Management:
Basecamp, Jira, Confluence, Trello, Zendesk, Slack, Workfront, Blueprint (Quickbase), Teams

Content Management:
Adobe Experience Manager, Drupal, WordPress, Kentico, Expression Engine, Lotus Workplace Web Content Management System, and JSP/ASP-based proprietary systems
KickApps DAMs (Digital Asset Management System), Acquia DAM

Email:
MailChimp, Lyris List Manager, Hallmark, SilverPop, Constant Contact, Litmus, Blackbaud

Web:
HTML, CSS, JavaScript, Flash, Node

Chat/AI
IBM Watson Conversation, AWS Lex, Dialog Flow

Advertising
Atlas Ad Management System

Analytics
Google Analytics, Google Tag Manager, Webtrends

Graphics
Photoshop, ImageReady, Illustrator, QuarkXPress, FrameMaker, InDesign, Strata Design

Code
ASP JSP, JavaScript, PHP, Java, C, C++, LISP, MS SQL Server, Git, Node, Python, Visual Basic, Sublime Text

Office/productivity
MS Word, Excel, SharePoint, PowerPoint, Pages, Keynote, Numbers, Google Docs, Google Sheets, Smartsheets

Platform as a Service (Paas)
Heroku, Twilio, Wufoo, SurveyMonkey, Thinkific, Gumroad

Code
ASP JSP, JavaScript, PHP, Java, C, C++, LISP, MS SQL Server, Git, Node, Python, Visual Basic, Sublime Text