Insights

Smart Building Opportunity Sielo specializes in LED lighting and IoT building intelligence solutions through LEDSENSE, targeting multifamily, hospitality, education, office, municipal, and retail sectors. Potential sales focus: upsell integrated lighting controls, occupancy sensing, and actionable energy analytics to improve efficiency and occupant experience.

Energy & Sustainability Offering a system that extends beyond basic lighting controls, with a strong emphasis on efficiency and sustainability. Potential sales focus: pitch customers on reduced energy consumption, lower operating costs, and sustainability reporting using IoT analytics for compliance and ESG goals.

Mid-market Growth Company size (~11-50 employees) and revenue in the low tens of millions positioning as a lean, agile partner. Potential sales focus: provide scalable, cost-effective LEDSENSE deployments and favorable implementation timelines for mid-market buildings and OEM integration.

Brand & Awareness Formerly Terralux with a rebrand to Sielo, indicating a transformation and market refresh. Potential sales focus: leverage brand evolution to recapture attention in trade shows, partnerships, and channel programs; align messaging with modern building intelligence and software-oriented offerings.

Growth Signals Recent product milestones include LEDSENSE Software and industry presence at LightFair, plus a documented funding round. Potential sales focus: align with customers pursuing innovative IoT-enabled lighting solutions and approach their decision-makers during or after new feature releases and events to accelerate procurement cycles.

Terralux Tech Stack

Terralux uses 8 technology products and services including WordPress, jQuery, HubSpot, and more. Explore Terralux's tech stack below.

  • WordPress
    Content Management System
  • jQuery
    Javascript Libraries
  • HubSpot
    Marketing Automation
  • Yoast SEO
    Search Engines
  • Bootstrap
    UI Frameworks
  • Google Analytics
    Web Analytics
  • Apache
    Web Servers
  • Facebook
    Widgets

Terralux's Email Address Formats

Terralux uses at least 2 format(s):
Terralux Email FormatsExamplePercentage
FLast@terralux.comJDoe@terralux.com
87%
Last@terralux.comDoe@terralux.com
6%
First@terralux.comJohn@terralux.com
4%
F.Last@terralux.comJ.Doe@terralux.com
3%
FLast@sielo.comJDoe@sielo.com
60%
Last@sielo.comDoe@sielo.com
40%

Frequently Asked Questions

What is Terralux's phone number?

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You can contact Terralux's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Terralux's official website and social media links?

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Terralux's official website is sielo.com and has social profiles on LinkedInCrunchbase.

How much revenue does Terralux generate?

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As of July 2026, Terralux's annual revenue is estimated to be $10M - $25M.

What is Terralux's NAICS code?

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Terralux's NAICS code is 335 - Electrical Equipment, Appliance, and Component Manufacturing.

How many employees does Terralux have currently?

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As of July 2026, Terralux has approximately 35 employees across 3 continents, including North AmericaEuropeSouth America. Key team members include Vice President Of Operations: M. C.Eastern Regional Sales Manager: B. K.Oem Sales Manager: J. W.. Explore Terralux's employee directory with LeadIQ.

What industry does Terralux belong to?

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Terralux operates in the Appliances, Electrical, and Electronics Manufacturing industry.

What technology does Terralux use?

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Terralux's tech stack includes WordPressjQueryHubSpotYoast SEOBootstrapGoogle AnalyticsApacheFacebook.

What is Terralux's email format?

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Terralux's email format typically follows the pattern of FLast@terralux.com. Find more Terralux email formats with LeadIQ.

How much funding has Terralux raised to date?

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As of July 2026, Terralux has raised $13M in funding. The last funding round occurred on Mar 04, 2015 for $11M.

When was Terralux founded?

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Terralux was founded in 2003.
Terralux logo

Terralux

Appliances, Electrical, and Electronics ManufacturingColorado, United States11-50 Employees

Based in Longmont, Colorado, the company operates under the name Sielo, formerly Terralux. It designs and manufactures LED lighting systems and building-intelligence solutions intended to improve energy efficiency and overall building performance. The core offering includes LEDSENSE, an IoT-based building solution that extends beyond basic lighting controls to address broader efficiency and sustainability needs for occupants.

Sielo serves a range of markets, including multifamily housing, hospitality, education, office environments, municipal facilities, and retail, as well as OEM fixtures and both architectural landscape lighting and accent lighting for retail. The company was founded in Boulder, Colorado, and has operated since 2003, positioning it as a long-standing player in LED lighting and building intelligence. It is a small- to mid-sized business.

Section iconCompany Overview

Phone number
Website
sielo.com
NAICS Code
335 - Electrical Equipment, Appliance, and Component Manufacturing
Founded
2003
Employees
11-50

Section iconFunding & Financials

  • $13M

    Terralux has raised a total of $13M of funding over 2 rounds. Their latest funding round was raised on Mar 04, 2015 in the amount of $11Mas a private_equity.

  • $10M - $25M

    Terralux's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $13M

    Terralux has raised a total of $13M of funding over 2 rounds. Their latest funding round was raised on Mar 04, 2015 in the amount of $11Mas a private_equity.

  • $10M - $25M

    Terralux's revenue is estimated to be in the range of $10M - $25M

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