30-day change: –– · 1 of 4 change types in 180 days
National rank#11,898of 46,016 · top 26%
IL#486of 1,725 · top 29%
Mchenry#3of 7 · top 43%
Google 4.2★ (15)Organic ~299/moSecurity headers DHosting NginxDomain 3 yrsNAICS 541211
MSP Signal ranks Eder Casella & Co #11,898 of 46,016 IT service providers nationally. Eder Casella & Co is a managed service provider in Mchenry, IL, founded 1989, with 64 staff. It offers Cloud migration, Compliance, VoIP and UCaaS.
Source: MSP Signal, Eder Casella & Co company profile, Oct 5, 2026, https://mspsignal.com/msp/eder-casella-co
01
Score breakdown
5 pillars · weighted · 55.2 / 100
Reputation30%
66/100
Lifted by more Google reviews and a higher rating.
Presence25%
82/100
Lifted by a stronger website and public profiles.
Credibility20%
12/100
Lifted by a fuller record: services, credentials, pricing.
In their own wordsEccezion is a full-service firm based in McHenry, Illinois, with a second location in Barrington. Founded in 1989 as Eder Casella Co., the company rebranded to Eccezion while retaining its experienced staff and commitment to quality service. The firm focuses on building strong client relationships to help individuals and businesses achieve their personal and professional goals.
Eccezion offers a range of services, including CPA services such as tax planning, audit, and bookkeeping; business consulting for strategy development and operational improvement; technology solutions like managed IT services and QuickBooks implementation; and marketing services aimed at enhancing business growth. The firm serves a diverse clientele, including small to mid-sized businesses, not-for-profit organizations, governmental entities, and school districts. Eccezion has been recognized as one of the Best Accounting Firms to Work For, highlighting its dedication to employee work-life balance.
“We carefully pick our employees not only so we have the best and brightest, but also so we maintain a positive work environment, which then translates to a great experience for clients.” Shelly joined the firm in 1998.”
Longevity
““Excellent customer service…” I have been using Eccezion for my payroll services for more than 10 years and they are the consummate professionals when it comes to excellent customer service, promptness and accuracy.”
“, President - Logistics Industry Business “Personal attention…” The best part about working with Eccezion is the personal attention they have given our company over the years.”
“Our company was founded and managed by a CPA with many years for Public Accounting experience; so we understand the criteria used to evaluate the professional services of a CPA firm… Shawn C.”
Availability
“With customized solutions, an experienced team, and 24/7 real-time monitoring and maintenance, Eccezion’s technology services can help you maximize the potential of your IT systems and keep your business up and running.”
up to three quotations per category
10
Frequently asked questions
reuses public facts · FAQ schema
Where is Eder Casella & Co located?
5400 W Elm St.
How many people work at Eder Casella & Co?
Eder Casella & Co has 64 staff.
What services does Eder Casella & Co offer?
Cloud migration, Compliance, VoIP and UCaaS.
How does Eder Casella & Co rank among IT providers in Mchenry?
#3 of 7 observed providers in Mchenry; #11,898 of 46,016 nationally.
Is Eder Casella & Co claimed on MSP Signal?
Not claimed.
Claimed · not shown (unclaimed) · Verified data · conditional on field sources · Registered entity · conditional on legal-entity nameLast observed Oct 5, 2026 · Citation: Eder Casella & Co company profile · https://mspsignal.com/msp/eder-casella-co