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451 Research - Biography

Dennis Callaghan
Senior Analyst, Enterprise Software

Dennis is a member of 451 Research's Infrastructure Computing for the Enterprise (ICE) team. He leads the firm's coverage of application and Internet performance management, service-level monitoring and management, and IT asset and service management. Dennis has a particular focus on all of these technologies in the context of cloud computing. He has authored 451 Special Reports on topics such as SOA adoption, SaaS integration, cloud performance management and PaaS. He speaks regularly at industry events focused on his diverse areas of expertise, conducts 451 and client webinars, and is regularly quoted in the trade and business press in articles about the topics and companies he covers.

Before joining 451 Research, Dennis was a senior writer at eWeek magazine for more than five years. At eWeek he covered a number of application and productivity software beats, including CRM, business intelligence and analytics, email, IM, collaboration, enterprise search, business-to-consumer e-commerce technologies and portals. He also led eWeek's coverage of Sarbanes-Oxley Act compliance and the impact it has had on IT professionals, in addition to covering the software-as-a-service model and the IT market for small and medium-sized businesses.

Prior to joining eWeek, Dennis was Associate Editor at MC Magazine, where he covered the marketing of technology. He was also News Editor at Midrange Systems and Midrange Channels magazines, where he covered IBM AS/400 computing. In addition, Dennis has worked as a technical writer at SunGard Capital Markets, a global financial trading and risk management software firm, and as a sportswriter for a daily newspaper. He holds a BA in Journalism from Duquesne University.


Reports by this Analyst

Fruition Partners plans to be first global cloud-service management integrator
MIS Impact Report - April, 2014
The cloud service management player is seizing the market momentum around ServiceNow in a bid to grow its footprint beyond the Americas.
After going private, Keynote doubles down on mobile management
MIS Impact Report - April, 2014
Now under private equity ownership, Keynote is refocusing its efforts on mobile application management after acquiring European mobile fraud-detection monitor Meucci and announcing a mobile application monitoring service.
Sumo Logic takes a turn toward security in latest release
MIS Impact Report - April, 2014
Fast-growing log management SaaS provider Sumo Logic is targeting the security information and event management space after making most of its early headway in IT performance and operations management.
CA Technologies looks to get faster, nimbler as devops takes center stage
MIS Impact Report - March, 2014
Devops, IT business management and security are the strategic drivers going forward for CA as CEO Michael Gregoire continues his SaaSy makeover of the company. The strategy and direction are sound, yet many challenges and hurdles remain.
CopperEgg tackles APM space under Idera
MIS Impact Report - February, 2014
Now under Idera, CopperEgg has added real-user monitoring to its network and server monitoring capabilities and has repositioned itself as an application performance management SaaS vendor.
ServiceNow continues to move beyond the helpdesk, IT
MIS Impact Report - February, 2014
The company has rolled out several new applications that take it beyond not only the helpdesk into broader IT management, but also the IT department.
Kaseya brings Zyrion Traverse to SaaS
MIS Impact Report - February, 2014
After buying network and server monitoring software provider Zyrion, Kaseya has made a move that the target resisted: offering the software in a SaaS model.
Cloud, mobile and end users drive consolidation in the performance management space
TDM Sector IQ - January, 2014
As IT performance management moves to the cloud, expect more M&A activity as both new and established vendors seek to broaden their offerings and provide one-stop shopping for IT.
ExtraHop moves to AWS to cap off a busy year
MIS Impact Report - January, 2014
The company recently released a version of its wire data performance analytics platform for Amazon Web Services, ending an active year for ExtraHop that was full of customer wins and technology integration partnerships.
After consolidation, Web performance management gets its second act
MIS Spotlight - January, 2014
Cloud and mobile have made Web performance management a hot space again as new startups attract funding in the wake of several acquisitions in the space.
New Relic targets mobility and analytics, makes high-profile sales hire
MIS Impact Report - January, 2014
The company keeps growing and expanding in customers and product capabilities, and it has hired a salesforce.com veteran to oversee its sales operations and keep it on the IPO track.
AppDynamics continues bookings growth surge and expands through acquisition
MIS Impact Report - December, 2013
The APM vendor has crossed the 1,000-customer plateau after absorbing its first acquisition, Nodetime. AppDynamics has also added two executives to its leadership team as it takes on mobility and business analytics as key focus areas.
Datadog surges forward in 2013, but can it avoid growing pains?
MIS Impact Report - December, 2013
After raising its first full funding round in late 2012, the IT performance monitoring startup enjoyed a year of solid growth in 2013. More opportunity – as well as challenges – will likely await Datadog.
Sumo Logic makes rapid gains, adds anomaly detection
MIS Impact Report - December, 2013
The startup has more than tripled its customer count since the beginning of the year as it continues to enhance its log management SaaS offering.
ThousandEyes helps SaaS providers and customers see network problems
MIS Impact Report - December, 2013
The venture-funded San Francisco-based startup has created an innovative product for analyzing network traffic that transits networks that a customer and its network service partners don't directly manage (e.g., SaaS applications).
Splunk traffics in network data with Cloudmeter purchase
TDM Deal Analysis - December, 2013
In its second acquisition, Splunk buys network data capture SaaS provider Cloudmeter to bolster its performance management capabilities.
BlueStripe makes strides with Microsoft partnership
MIS Impact Report - November, 2013
The company is making headway in the business transaction management space with the help of a go-to-market partnership with Microsoft's datacenter team. Could a more formal union be in the future?
Sentilla looks to provide intelligence on hybrid IT infrastructure
MIS Impact Report - November, 2013
The opportunity is there for Sentilla and its datacenter infrastructure intelligence platform, but questions remain after its three cofounders all moved on in the past year.
AppNeta unites product line, takes investment from SolarWinds
MIS Impact Report - November, 2013
The company has taken an investment from SolarWinds as it looks to gain more customer exposure for its full-stack application and network performance management platform.
uptime software sharpens unified view of IT infrastructure
MIS Impact Report - November, 2013
In its latest release (up.time 7.2), uptime software looks to make it easier to get relevant IT performance metrics, although we wonder whether it will be the next acquisition target in a consolidating market.
Splunk courts new users, moves deeper into cloud
MIS Impact Report - October, 2013
The company has introduced a new data model and pivot feature that will bring the power of its analytics to more users. Splunk has also made a full-featured version of its platform available in the cloud.
VMware aims its multi-cloud management portfolio squarely at the IT department
MIS Impact Report - October, 2013
The company has launched its multi-cloud management suite, vCAC, giving IT the ability to manage heterogeneous clouds across the firewall.
SolarWinds expands to the database level with Confio buy
TDM Deal Analysis - October, 2013
SolarWinds has acquired database performance management specialist Confio for $103m in cash as it looks to find new technology pieces and revenue sources.
Loggly raises $10.5m series B round, looks to the enterprise
MIS Impact Report - September, 2013
The company has raised new funding as it looks to win larger deals with its second-generation log management SaaS platform.
Splunk makes first deal, buys BugSense for mobile data analytics
TDM Deal Analysis - September, 2013
Splunk picks up startup BugSense to expand its performance data analytics capabilities for mobile applications.
INETCO targets cloud environments, embraces IBM and HP
MIS Impact Report - September, 2013
The company is targeting performance management of private and public cloud workloads in the latest release of its Insight flagship product. It has also inked new partnerships with HP and IBM.
Financial institution evaluates Moogsoft's service-assurance software during trial
MIS User Deployment Report - August, 2013
An international financial organization conducts a side-by-side trial of the service-assurance vendor's software against its legacy processes.
eG Innovations targets Microsoft, mixed environments in latest release
MIS Impact Report - August, 2013
The IT performance management software vendor has released a plug-in for Microsoft System Center Operations Manager that will give customers integrated performance management of Microsoft and non-Microsoft environments.
Parasoft moves into growth mode as service virtualization drives business
MIS Impact Report - August, 2013
The company is expanding its sales and marketing efforts to drive growth and take advantage of the opportunity around service virtualization.
ServiceNow looks to fill more gaps through acquisition
TDM Acquirer IQ - August, 2013
Its recent pickup of Mirror42 figures to be the first of several deals the company will make to bolster its ITSM platform.
Exoprise is ready to manage Office 365 cloud environments, but waits for market to develop
MIS Impact Report - July, 2013
With new funding and new partners, Exoprise Systems is aiming to build a business around management of Microsoft Office 365 environments. It remains somewhat ahead of the market, but has a pipeline of cloud assessment customers.
ServiceNow makes first acquisition, buys Mirror42 for analytics
TDM Deal Analysis - July, 2013
Filling a gap in its platform, ServiceNow picks up ITSM analytics and reporting SaaS vendor Mirror42.
After being taken over by Insight, Kaseya buys Zyrion
TDM Deal Analysis - July, 2013
Just weeks after it was acquired by Insight Venture Partners, Kaseya has improved its network and server monitoring capabilities by acquiring Zyrion.
Netuitive starts growing again as land-and-expand strategy pays off
MIS Impact Report - July, 2013
The company is turning proofs of concept into larger deals, sparking a new round of growth as its transition from OEM to direct sales continues to take shape.
Can Idera become a broader APM player after acquiring Precise?
TDM Deal Analysis - July, 2013
Microsoft-centric database performance management software vendor Idera will have a chance to expand into cross-platform APM after reaching for Precise Software, though we expect its platform expansion to be limited to database management for now.
Prelert figuring out go-to-market strategy as deals with CA, Splunk pay off
MIS Impact Report - July, 2013
An OEM deal with CA Technologies and an integration partnership with Splunk have the company feeling pretty good about where it's sitting.
LogicMonitor gets funded as business, company expand
MIS Impact Report - July, 2013
The company has raised its first venture round after growing 300% in 2012 and is expecting similar growth this year. Employee headcount has more than doubled over the past year.
Boundary takes flight, adds analytics capability
MIS Impact Report - July, 2013
The company has crossed the 100-customer plateau as it adds a new early-warning analytics capability to spot application performance issues before they impact the business.
VMware enters log management space with vCenter Log Insight
MIS Impact Report - June, 2013
The company has released its new log management and analysis software to beta; existing VMware customers will likely benefit the most.
Thoma Bravo to take Keynote private in $395m deal
TDM Deal Analysis - June, 2013
Internet performance management pioneer Keynote Systems has agreed to be acquired by private equity firm Thoma Bravo for $395m.
SOASTA expands products, partnerships, looks to Asia for more growth
MIS Impact Report - June, 2013
The company has added real-user monitoring and Jenkins support to its cloud-based load testing platform as it looks to build its presence in the Asia-Pacific region.
ServiceNow looks to move IT beyond helpdesk to managing service relationships
MIS Impact Report - May, 2013
At its first customer conference since becoming a public company, ServiceNow laid out its vision for helping customers define and manage service relationships between IT and the business units it supports.
CA Technologies looks to SaaS, devops to drive new growth
MIS Impact Report - May, 2013
Under new CEO Michael Gregoire, the company is embracing the SaaS model for its IT management software and building its devops portfolio through acquisition.
BMC agrees to be acquired by private equity consortium for $6.9bn
TDM Deal Analysis - May, 2013
After months of speculation about its future, BMC Software has agreed to sell itself for $6.9bn to a group of PE firms led by Bain Capital and Golden Gate Capital.
Reborn FrontRange doubles down on ITSM, 'future proof' hybrid model
MIS Impact Report - April, 2013
Under new management, FrontRange has spun off its CRM business to focus exclusively on IT service management with integrated client management and a hybrid cloud/on-premises delivery model.
AppDynamics expands product set to drive new wave of growth in the face of CA lawsuit
MIS Impact Report - April, 2013
APM juggernaut AppDynamics is adding deeper and broader monitoring and management capabilities as it looks to keep its momentum going in a competitive space – and now must contend with a patent-infringement lawsuit from CA Technologies.
MSP business continues to lead Zyrion forward
MIS Impact Report - April, 2013
The network management software vendor's focus on MSPs paid off in 2012 as it reported 200% revenue growth from that customer segment.
Performance monitoring moves to the cloud
MIS Spotlight - April, 2013
Cloud-based tools that monitor and manage IT performance and availability levels are proliferating, both from established licensed-software vendors and cloud-only startups.
Confio targets devops, touts continued revenue growth
MIS Impact Report - April, 2013
Database performance manager Confio had its second straight year of 70% growth in 2012, surpassing its targets. The company says it is seeing increasing interest in its software from developers.
ManageEngine seeks to deliver Big Four APM capability at a fraction of the price
MIS Impact Report - April, 2013
The IT manager is targeting the application performance management space, both on-premises and in the cloud, with its low-cost Applications Manager suite.

 

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