OverviewSuggest Edit

    3SL (Structured Software Systems) is a provider of professional engineering services. It offers Cradle, a requirements management and systems engineering software tool that integrates customers' project lifecycle in one multi-user product. It serves the aerospace, defense, space, automotive, and nuclear sectors.
    HQBarrow-in-Furness, GB

    Latest Updates

    Employees (est.) (Sept 2021)17(+7%)
    Cybersecurity ratingCMore
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    3SL Office Locations

    3SL has offices in Barrow-in-Furness and Huntsville
    Barrow-in-Furness, GB (HQ)
    22A Duke St
    Huntsville, AL, US
    1500 Perimeter Pkwy NW #123
    Huntsville, AL, US
    3001 9th Ave, Suite 207c
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    3SL Financials and Metrics

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    Founding Date

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    3SL Operating Metrics

    3SL's Customers was reported to be 275 in Jun, 2019.
    Jun, 2019




    12 k
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    3SL Cybersecurity Score

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    3SL Online and Social Media Presence

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    3SL Blogs

    Public Online Training Course – Document Publisher November 2021

    3SL - Cradle - Document Publisher November 22nd – 25th November 2021 Due to popular demand, we’ve added another chance to make your output shine with  Cradle report creation training – Document Publisher November 2021 course. “Once you have managed your requirements and development, producing a comp…

    Will your product be around in 2039?

    3SL - Cradle - Where is your product’s future? If this year in 2021 you’re designing flashing wrist bands for the FIFA World Cup in 2022, then it’s unlikely you’ll be worried about your product’s next ‘development stage’ in 2023. Should you be building a house you’d expect greater longevity. You’d h…

    International Nurses’ Day

    3SL - Cradle - 12th May – IND The 12th of May is the anniversary of Florence Nightingale‘s birth. It is on this day that around the world the contributions that nurses make to society are commemorated. Whilst doctors get due recognition for their life saving work, it is the hugely varied roles that …

    World Day for Safety and Health at Work 2021

    3SL - Cradle - Safety is Everyone’s Business Whether you are in change of a nuclear reactor, or run a stall on the market, whether you fly a plane or enter data on a terminal, your safety and your businesses safety is an important consideration. Time To Think Organisations such as the International …

    Test, Execution and Recording

    3SL - Cradle - “It will work…” (Probably) No product manager wants to be confirming their solution’s viability without the backup of evidence. It is imperative to test and assure your process or product. Tests should demonstrate conformance with, all the vital parameters that comprise your design; r…

    April 2021 Newsletter

    3SL - Cradle - Chicken or Egg If you celebrated Easter, you will probably have received an egg. These days they are usually chocolate covered in bright foil which is a modern twist on the dyed and patterned eggs used for centuries. This April 2021 newsletter looks at the age old argument of which ca…
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    3SL Frequently Asked Questions

    • When was 3SL founded?

      3SL was founded in 1987.

    • How many employees does 3SL have?

      3SL has 17 employees.

    • Who are 3SL competitors?

      Competitors of 3SL include InDyne, Fortude and Securetech.

    • Where is 3SL headquarters?

      3SL headquarters is located at 22A Duke St, Barrow-in-Furness.

    • Where are 3SL offices?

      3SL has offices in Barrow-in-Furness and Huntsville.

    • How many offices does 3SL have?

      3SL has 3 offices.