Best SEO Companies in New Hampshire

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SEOBackOffice.org lists 17 verified SEO agencies serving New Hampshire, including providers in Portsmouth, Manchester, Bedford, Dover, Keene and other communities. Compare current service scope, confirmed SEO capabilities, published pricing and official contact information.

This is an unscored buyer directory. Shortlist agencies whose experience matches your market, then ask for relevant case studies, a technical assessment, reporting examples and a clear explanation of how success will be measured.

Compare 17 New Hampshire SEO Agencies

The table reports facts checked against official agency sources. “Not publicly listed” means we did not find general SEO pricing on the official source reviewed.

New Hampshire SEO agency comparison — official-source review completed August 26, 2026.

Agency	New Hampshire presence or service scope	Confirmed SEO capabilities	Published pricing	Official links
VITAL	Portsmouth, New Hampshire headquarters; digital marketing agency with additional offices outside New Hampshire.	SEO, technical SEO, keyword research, content marketing, CRO, paid media	Not publicly listed	Contact · Source
SilverTech	Bedford, New Hampshire headquarters; digital experience agency with other US offices.	SEO, organic keyword strategy, local listings optimization, technical site crawls, content marketing	Not publicly listed	Contact · Source
Raka	Portsmouth, New Hampshire; full-service HubSpot and digital marketing agency.	SEO, content marketing, inbound marketing, website development, HubSpot strategy	Not publicly listed	Contact · Source
Altos	Bedford, New Hampshire; full-service digital marketing agency serving New Hampshire and beyond.	SEO, content campaigns, paid media, email marketing, website development	Not publicly listed	Contact · Source
EVR Advertising	Manchester, New Hampshire; serves New Hampshire and regional organizations.	SEO, content, website development, data analytics, media planning	Not publicly listed	Contact · Source
CommonPlaces	Seabrook, New Hampshire; technology agency for B2B companies.	SEO assessment, paid search assessment, local presence assessment, website development	Not publicly listed	Contact · Source
Paragon Digital Marketing	Keene, New Hampshire; digital marketing and website services agency.	SEO, search engine marketing, web analytics, website development, reputation management	Not publicly listed	Contact · Source
FirstTracks Marketing	Pembroke, New Hampshire; e-commerce marketing, development and marketing agency.	SEO, content, PPC, email marketing, marketing automation, WordPress and WooCommerce development	Not publicly listed	Contact · Source
SC Digital	Portsmouth, New Hampshire office; serves New Hampshire businesses and clients beyond the state.	SEO, local SEO, website design and development, Google Ads, conversion optimization, online reviews	Flexible monthly plans; no public minimum found	Contact · Source
Loud Canvas Media	Dover, New Hampshire; serves New Hampshire and regional businesses and nonprofits.	SEO, local SEO, website design and development, digital marketing, managed hosting	Not publicly listed	Contact · Source
Richardson Media Group	Portsmouth, New Hampshire; paid media and SEO agency serving local and regional clients.	SEO, on-site optimization, content management, website speed and mobile optimization, paid media	Not publicly listed	Contact · Source
Millennium Agency	Manchester, New Hampshire; branding, web design and strategy agency.	SEO-smart website architecture, performance-driven UX, web design, brand strategy	Not publicly listed	Contact · Source
Boldwerks	Portsmouth, New Hampshire; serves New Hampshire, New England and clients beyond the region.	SEO, local SEO, technical SEO, keyword analysis, content optimization, link building, reporting	Not publicly listed	Contact · Source
Danconia Media	Bedford, New Hampshire office; SEO campaigns for regional, national and international clients.	SEO, website design, content optimization, search visibility strategy	Not publicly listed	Contact · Source
CharlesWorks	Peterborough, New Hampshire; website development, hosting and SEO provider.	SEO, content creation, link building, meta-tag optimization, keyword research, website development	SEO pricing varies; website packages publicly start at $500	Contact · Source
Windhill Design	Loudon, New Hampshire; digital marketing and web development for small and medium-sized businesses.	SEO, local SEO, website development, managed hosting, speed optimization	Not publicly listed	Contact · Source
Tap House Media	Dover, New Hampshire; serves the Seacoast, New England and beyond.	SEO campaigns, keyword research, Google listing optimization, link building, SEO copywriting, website design	Website packages publicly start at $3,000; SEO-specific pricing not publicly listed	Contact · Source

How to Choose an SEO Agency in New Hampshire

• Ask for case studies from businesses with a similar sales model, market and website size.
• Request a written scope covering technical SEO, content, authority building, local search and reporting.
• Confirm fees, contract length, ownership of work and the metrics used to judge progress.
• Verify every claim directly with the agency before signing an agreement.

New Hampshire Agency Profiles