
Spectrum Group Online
Make Marketing Decisions Driven by Data
5.0/5 from 5 reviews
Our Take on Spectrum Group Online
Spectrum Group Online is a San Jose-based digital marketing agency specialising in data-driven strategy across SEO, SEM, web analytics, and content optimisation. Named among the Top 15 SEO firms in San Jose and ranked among the 12 best SEO agencies on Expertise.com, the agency holds Google Partner and Bing Partner certifications, alongside Clutch verification. Their service range includes advanced SEO techniques such as schema markup implementation, paid search campaigns across Google and Bing, real-time analytics dashboards for conversion tracking, and WordPress website development. The team emphasises transparent reporting and tactical collaboration, delivering actionable insights that support confident marketing decisions across channels. They work with local, national, and international clients and function as digital marketing educators within their sector. Spectrum Group Online is best suited for businesses seeking measurable marketing outcomes and partners willing to ground decisions in analytical data rather than assumptions.
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Client Reviews
Sourced from Clutch, G2, Google & verified submissions
"SEO for Telecommunications Co"
Spectrum Group Online conducted an SEO audit for a telecommunications company. The team also analyzed the site's goal, target personas, and Google Analytics.
Cynthia Fidel
Mar 2025
"Web Design, SEO & Digital Strategy for Revenue Consulting Co"
Spectrum Group Online provides web design and SEO services for a revenue consulting company. The team is responsible for SEO optimization, creating technical blog posts, and conducting market research.
Benjamin Reynolds
Jul 2023
"Analytics & Tracking for Marketing Agency"
A marketing agency hired Spectrum Group Online for Google Analytics tracking and reporting. The client aimed to improve funnel reporting and tracking setup and maximize learning from the client side.
Alexa Sundberg
Apr 2023
"SEO, PPC, & Digital MKT for Pharmaceutical Manufacturer"
Spectrum Group Online provides digital marketing services to a sterilization system manufacturer. They run SEO, paid search ads, Google Analytics, backlinks, and landing page UX/UI for the client.
Chrissie Fuchs
Oct 2021
"SEO & Analytics for Academic Institution"
Spectrum Group Online provided SEO training and consulting services to a business school. They expanded performance metric visibility through new Google Analytics dashboards and undertook a link cleanup.
Scott Rief
Dec 2020
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