Digital Marketing Company

1Plus Agency GmbH

Mannheim and Heppenheim agency offering SEO, Google Ads, social media, web design, online shops and app development

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About 1Plus Agency GmbH

Offices in Mannheim and Heppenheim, Germany, house 1Plus Agency GmbH, a full-service advertising firm. Since 2012 the firm has worked across web, app, online marketing, design, print, video and photography for companies of many sizes, from local firms to large brands. The firm says it has worked with more than 250 companies, and it treats each channel as part of one plan aimed at growth that can be measured.

Search, paid advertising and social media

Search engine optimisation runs from the technical side of a site through content strategy to local visibility in organic results. Google Ads runs search, display, Performance Max and YouTube campaigns against cost-per-conversion goals. Social media marketing builds communities and runs paid campaigns on Meta, TikTok, LinkedIn and Pinterest, with the aim of turning reach into enquiries. Content marketing supplies blog series, landing pages, video and imagery designed to convert.

Websites and online shops on several platforms

Web design uses WordPress, Webflow, TYPO3 or headless builds, chosen for each task. Online shops launch on Shopify, WooCommerce, Shopware and Magento with a focus on conversion and ease of maintenance. Apps are built natively or in hybrid form for iOS, Android and the web. Work runs from prototype and user experience design through store launch and ongoing maintenance.

Accessibility, branding and AI answers

Accessibility audits check whether a website meets WCAG 2.1 AA under Germany's BFSG, a legal requirement for many companies since June 2025, and document the results. Branding builds a recognisable identity covering logo, colour, typography, imagery and tone of voice. The firm also offers generative engine optimisation, which aims to make a brand quotable in AI assistants and AI search results, and AI integration such as chatbots, voice avatars and automated content, applied where the company says they add real use.

Coordinating channels toward one goal

The firm's online marketing layer sits over SEO, search ads, social media, content and email, so that each channel contributes to a shared goal that can be tracked. The clients it names on its site include Playmobil, BASF, NYX Hotels, SAP Arena and the city of Mannheim.

TrustList summary

1Plus Agency GmbH is a full-service advertising agency with offices in Mannheim and Heppenheim in Germany. It has handled client work since 2012 and covers web, apps, online marketing, design and print, and video and photography. Companies of many sizes use it, from local firms to large brands.

What 1Plus Agency GmbH does

SEO: technical SEO, content strategy and local visibility in unpaid search results.
Google Ads: search, display, Performance Max and YouTube campaigns run against cost-per-conversion targets.
Social media marketing: community building and paid social on Meta, TikTok, LinkedIn and Pinterest.
Web design and online shops: sites on WordPress, Webflow, TYPO3 or headless setups, and shops on Shopify, WooCommerce, Shopware and Magento.
App development: native and hybrid apps for iOS, Android and the web, from prototype to store launch and maintenance.
Accessibility and AI: website accessibility audits to WCAG 2.1 and the BFSG law, plus chatbots and automated content production.

Who it serves

Clients named on its site include Playmobil, BASF, SAP Arena, NYX Hotels and the city of Mannheim.

Key facts

Based in: Mannheim and Heppenheim, Germany
Active since: 2012
Platforms: WordPress, Shopify, Shopware, Magento, TYPO3

Summary written by TrustList from the business's own published information, Nov 2026.

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Categories & features

1Plus Agency GmbH rankings

1Plus Agency GmbH is ranked on 4 TrustList rankings: #9 on 1, #12 on 1, #22 on 1 and #43 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. 1Plus Agency GmbH has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Digital marketing company · 4 rankings

On 2 of these it sits behind 19 (Nineteen), ahead of 1st Click Consulting.

#9of 325
Video
It is one of 10 here listing WordPress and one of 27 here listing SEO.
Its profile: “Since 2012 the firm has worked across web, app, online marketing, design, print, video and photography for companies of many sizes, from local firms to large brands.”
Of the top 87 here, 43 also cover production and 30 also cover creative; 3 also work in Toronto and 2 also work in United States.
Behind 1Camera, ahead of 2060 digital.
#12of 1019
Media
It is one of 18 here listing video.
Its profile: “Social media marketing builds communities and runs paid campaigns on Meta, TikTok, LinkedIn and Pinterest, with the aim of turning reach into enquiries.”
Of the top 86 here, 47 also cover SEO and 32 also cover digital marketing; 4 also work in York and 3 also work in New York.
#22of 1202
Design
It is one of 10 here listing video and one of 20 here listing WordPress.
Its profile: “Since 2012 the firm has worked across web, app, online marketing, design, print, video and photography for companies of many sizes, from local firms to large brands.”
Of the top 90 here, 32 also cover web design and 32 also cover eCommerce; 2 also work in Colorado and 2 also work in Burlington.
Behind 19 (Nineteen), ahead of 1st Studio.
#43of 1702
Marketing
It is one of 14 here listing video and one of 20 here listing WordPress.
Its profile: “Since 2012 the firm has worked across web, app, online marketing, design, print, video and photography for companies of many sizes, from local firms to large brands.”
Of the top 100 here, 36 also cover social media marketing and 26 also cover web development; 2 also work in Reading and 2 also work in Mumbai.