• About

    We work best with brands that have a vision for their tomorrow. Those that relish the challenge of delivering marketing experiences to truly make a difference to their businesses.  

    Driving the now and defining the next in B2B Marketing

    We work best with brands that have a vision for their tomorrow, and know marketing can make it real.

    We blend human insight with AI to deliver experiences that truly make a difference to your business.

    About us

    Find out more about Transmission and the people behind the agency setting new standards for B2B marketing experiences.

    Our heritage

    We didn’t become a leading global B2B marketing agency overnight, and we didn’t always go by the name, Transmission…

    Awards

    We’ve got a long track record of producing industry-recognized work, no matter the vertical or business challenge.

    Join us

    Check out our open job roles at Transmission, where curious minds create the future of B2B marketing.

  • How we help

    Global services unified under one agency brand. Here’s what we can do for you.

    How can we help you?

    Our complete suite of services to charge your growth, powered by human insight and AI.

    View All Services
    Growth consulting

    Identify the best opportunities to deliver profitable, efficient, and effective B2B growth. We surface revenue growth opportunities by customer, segment, and value proposition strength.

    Competitive analysis Brand intelligence GTM audit & architecture Spend efficiency audit Organizational audit
    Brand strategy

    Whether you need greater awareness, stronger distinction, or more captivating experiences, we ensure your brand is memorable, meaningful, and measurable across every touchpoint.

    Brand insights Brand positioning & proposition Brand expression & identity Brand storytelling & activation
    Go-to-market services

    Orchestrate more unified and salient brand-to-demand experiences across every touchpoint, from sales and marketing to product and customer success.

    Go-to-market audit & architecture Audience strategy Customer journey Organizational enablement Campaign planning Measurement planning
  • Agency services

    We help to shape your marketing, optimizing every touchpoint to deliver seamless customer experiences that drive sustainable, long-term growth.

    Integrated agency services

    We help to shape your marketing, optimizing every touchpoint to deliver seamless customer experiences that drive sustainable, long-term growth.

    View all services
    ABX

    Build stronger customer relationships and grow your market share across your high-value target accounts.

    Paid media

    Innovative end-to-end global multi-channel capabilities to drive efficient audience reach and performance.

    Creative

    Everything you would expect from a creative agency. All delivered in unexpected ways.

    Content

    We don’t just create content; we deliver experiences that resonate, engage, and drive results.

    Digital experiences

    Dynamic, innovative and meaningful websites and digital experiences that delight your buyers and customers.

    Digital optimization

    Understand your digital landscape, where your buyers are active, and how to influence their purchase decisions.

    Data insights

    Knowledge is power. Make data-driven decisions with actionable business and marketing insights.

    Demand conversion

    Pipeline generation, nurture strategies, and sales activation to exceed your sale’s teams expectations.

  • Work

    We help to shape your marketing, optimizing every touchpoint to deliver seamless customer experiences that drive sustainable, long-term growth.

  • Insights

    Our thoughts on driving the now and defining the next in B2B marketing.

    Insights

    View all insights
    ABM B2B Insights Big Thinking Brand Guides
    Visit the microsite
    Who is Watson? The Day AI Went Prime Time
    Who is Watson? The Day AI Went Prime Time
    Read article
    Visit the microsite
    The YES Advantage: 9½ behavioural biases that redefine how B2B brands connect and engage with their buyers
    The YES Advantage: 9½ behavioural biases that redefine how B2B brands connect and engage with their buyers
    Read article
    Download the report
    Closing the CMO-CFO brand value gap in B2B
    Closing the CMO-CFO brand value gap in B2B
    Read article
  • Get in touch
Guides

The LinkedIn organic social spec hub

Discover the specs to bring your organic LinkedIn strategy to life.

  • Guides
  • Media
The LinkedIn organic social spec hub

Table of contents

  • Single image
  • Carousel
  • Video
  • Document
  • Polls
  • Your Company Page
  • Your Profile Page
  • Looking for design and copy recommendations for LinkedIn’s paid formats?

Working on building brand awareness or fostering a community on LinkedIn?

Chances are you’re using an organic approach to social. Find all the format recommendations, creative requirements, and video best practices to bring your organic LinkedIn publishing strategy to life.

Single image

Create more engaging posts. On desktop and mobile.

Copy recommendations

Introductory text: 150 characters to avoid truncation across all devices

Maximum character count: 3,000 characters

Design recommendations

File type: JPG or PNG

File size limit: 5MB

Square

Aspect ratio: 1:1

Recommended size: 1200 x 1200 pixels

Horizontal

Aspect ratio: 1.91:1

Recommended dimensions: 1200 x 628 pixels

Vertical

Aspect ratio: 4.5

Recommended dimensions: 960 x 1200 pixels

Carousel

Tell an interactive story with up to 20 images and videos.

Please note: This feature is being gradually rolled out. You can only create carousels on the desktop site but can view them on the desktop or the LinkedIn mobile app.

Copy recommendations

Introductory text: 150 characters to avoid truncation across all devices

Maximum character count: 3,000 characters

Design recommendations – Photo/Image

File type: JPG, JPEG, or PNG

Minimum dimensions: 552 x 276 pixels

File size limit: 5MB

Design recommendations – Video

File type: MP4, MPEG-1 and MPEG-4, ASFFLV, MKV, WebM, H264/AVC, VP8 and VP9, WMV2, and WMV3

Minimum file size: 75KB

Maximum file size: 5GB

Minimum video duration: 3 seconds

Maximum video duration: 15 minutes when uploading from desktop

Video

Engage and impress with video. For your personal or company page.

Copy recommendations

Introductory text: 150 characters to avoid truncation across all devices

Maximum character count: 3,000 characters

Video title: 150 characters maximum

Design recommendations

File size: 75KB – 5GB

Video duration: 3 seconds – 10 minutes

Frame rates: 10 – 60 frames per second

Bit rates: 192 kbps – 30 Mbps

File type: AAC, ASF, FLV, MP3, MP4, MPEG-1, MPEG-4, MKV, WebM, H264/AVC, Vorbis, VP8, VP9, WMV2, or WMV3

Square

Aspect ratio: 1:1

Recommended dimensions: 1920 x 1920 pixels

Landscape

Aspect ratio: 1:2.4 (16:9)

Recommended dimensions: 1920 x 1080 pixels

Vertical

Aspect ratio: 4:5

Minimum: 360 x 450 pixels

Maximum: 1080 x 1350 pixels

Document

Showcase your hero assets. Directly in the LinkedIn Feed.

Copy recommendations

Introductory text: 150 characters to avoid truncation across all devices

Maximum character count: 3,000 characters

Document title: 58 characters maximum

Design recommendations

Aspect ratio: 1:1

Recommended dimensions: 1200 x 1200 pixels

File type: PDF (recommended), PPT, PPTX, DOC, or DOCX

File size limits: 100MB or 300 pages 

Polls

Bring your audience into the conversation. One question at a time.

Copy recommendations

Introductory text: 150 characters to avoid truncation across all devices

Maximum character count: 3,000 characters

Document title: 58 characters maximum

Design recommendations

Aspect ratio: 1:1

Recommended dimensions: 1200 x 1200 pixels

File type: PDF (recommended), PPT, PPTX, DOC, or DOCX

File size limits: 100MB or 300 pages 

Your Company Page

Showcase your company’s latest updates. Direct on LinkedIn.

Company logo

Recommended dimensions: 268 x 268 pixels

Format: JPG or PNG

Company cover image

Recommended dimensions: 1128 x 191 pixels

Life tab (optional)

Main image: 1128 x 376 pixels (recommended)

Custom modules image size: 502 x 282 pixels (recommended)

Company photos image size: 900 x 600 pixels (recommended)

Your Profile Page

Showcase your company’s latest updates. Direct on LinkedIn.

Profile photo

Recommended dimensions: 400 x 400 pixels

Maximum: 7680 x 4320 pixels

File size: Up to 8MB

Profile cover photo

Recommended dimensions: 1584 x 396 pixels

Aspect ratio: 4:1

File size: Up to 8MB

Looking for design and copy recommendations for LinkedIn’s paid formats?

VISIT OUR PAID SOCIAL SPEC HUB 
Transmission.
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Transmission is certified to ISO/IEC 27001:2022 (Information Security Management) and ISO/IEC 42001:2023 (Artificial Intelligence Management), demonstrating our commitment to secure data handling and responsible AI governance.

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Offices

A global footprint but with local intelligence and expertise.

  • London (UK)

  • San Francisco (US)

  • New York (US)

  • Dallas (US)

  • Sydney (AU)

  • Singapore

  • Delhi

  • Wroclaw (PL)

London

5th Floor, The Clove Building, 4 Maguire Street, London, SE1 2NQ

Tel: +44 (0) 20 8004 0211

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Copyright © year Transmission All Rights Reserved. ‘Transmission’ is a trading name of Pulse Comms Ltd, registered in England and Wales no. 8724506. VAT number: GB175238887