451 Research

CabinetM

Capterra

CB Insights

Cloudswave

CMSWire

Constellation Research

CrunchBase

diginomica

Digital Clarity Group

Digital Marketing Depot

FinancesOnline

FitSmallBusiness

Forrester Research

G2

Gartner

GetApp

IntelliPhi

Nucleus Research

The Pedowitz Group

Real Story Group

SiriusDecisions

SMB Group

Software Advice

Software Connect

SoftwareSuggest

TechnologyAdvice

Technology Evaluation Centers

Trustpilot

TrustRadius