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Sia/Addison Employee Directory

Design ServicesNew York, United States201-500 Employees

Sia/Addison has about 228 employees across 5 continents, most of them in North America. By country, the largest groups are United States Of America (83%), United Kingdom Of Great Britain And Northern Ireland (7%) and Australia (3%). Arts & Design and Branding make up over half of the profiles with a known department. Sia/Addison's workforce spans 12 departments. Sia/Addison's workforce fell 63% between July 2025 and July 2026.

Find Sia/Addison employees' phone numbers or email addresses

Sia/Addison Global Highlights

Location
Employees

North America
166

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  • United States Of America
    164
  • Canada
    2

Europe
16

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  • United Kingdom Of Great Britain And Northern Ireland
    13
  • Spain
    2
  • France
    1

Africa
5

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  • Kenya
    1
  • Algeria
    1
  • Morocco
    1
  • Egypt
    1
  • Nigeria
    1

Oceania
5

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  • Australia
    5

Asia
4

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  • India
    3
  • Pakistan
    1

South America
1

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  • Brazil
    1

North America accounts for 84% of Sia/Addison's workforce, followed by Europe (8%) and Africa (3%).

Sia/Addison's Leadership

  • Owner at Sia/Addison
    A. H.
    Owner
    Mobile Phone
  • Owner at Sia/Addison
    J. K.
    Owner
    Mobile Phone
  • Owner at Sia/Addison
    M. W.
    Owner
    Mobile Phone
  • Managing Director, Head Of Strategy at Sia/Addison
    N. M.
    Managing Director, Head Of Strategy
    Mobile Phone
  • Svp - Executive Search - It & Digital Marketing at Sia/Addison
    L. W.
    Svp - Executive Search - It & Digital Marketing
    Mobile Phone
  • Vice President at Sia/Addison
    S. F.
    Vice President
    Mobile Phone
  • Relationship Director at Sia/Addison
    S. K. P.
    Relationship Director
    Mobile Phone
  • Account Director at Sia/Addison
    A. W.
    Account Director
    Mobile Phone

Sia/Addison Employee Metrics

100%
50%
0%
2026
2025
  • Arts & Design
  • Legal
  • Engineering
  • Administrative
  • Education
  • Other
  • Sales
  • Accounting
  • Real Estate
  • Business
  • Recruiting
  • Branding
  • Consulting

Arts & Design is the largest department at 43% of profiles with a known department, up from 25% in July 2025, followed by Branding (10%, up from 0%) and Business (10%, up from 0%).

Contact profiles from Sia/Addison

Name
Title
Contact
Location
Last Update
  • Owner at Sia/Addison
    A. H.
    Owner
    Mobile Phone
    Oct 22, 2024
  • Owner at Sia/Addison
    J. K.
    Owner
    Mobile Phone
    Oct 23, 2024
  • Owner at Sia/Addison
    M. W.
    Owner
    Mobile Phone
    Oct 17, 2024
  • Managing Director, Head Of Strategy at Sia/Addison
    N. M.
    Managing Director, Head Of Strategy
    Mobile Phone
    Oct 25, 2026
  • Svp - Executive Search - It & Digital Marketing at Sia/Addison
    L. W.
    Svp - Executive Search - It & Digital Marketing
    Mobile Phone
    Oct 23, 2024
  • Vice President at Sia/Addison
    S. F.
    Vice President
    Mobile Phone
    Oct 17, 2024
  • Relationship Director at Sia/Addison
    S. K. P.
    Relationship Director
    Mobile Phone
    Aug 03, 2026
  • Account Director at Sia/Addison
    A. W.
    Account Director
    Mobile Phone
    United Kingdom, Greater London
    Jul 15, 2026
  • Client Service Director at Sia/Addison
    A. N.
    Client Service Director
    Mobile Phone
    Sep 11, 2024
  • Director Recruitment Services at Sia/Addison
    J. W.
    Director Recruitment Services
    Mobile Phone
    Oct 21, 2024

Frequently Asked Questions

What are the largest departments at Sia/Addison?

Minus sign iconPlus sign iconArts & Design is the largest department at 43% of profiles with a known department, up from 25% in July 2025, followed by Branding (10%, up from 0%) and Business (10%, up from 0%). Sia/Addison's workforce spans 12 departments.

Where are Sia/Addison's employees located?

Minus sign iconPlus sign iconSia/Addison has about 228 employees across 5 continents, most of them in North America. North America accounts for 84% of Sia/Addison's workforce, followed by Europe (8%) and Africa (3%). By country, the largest groups are United States Of America (83%), United Kingdom Of Great Britain And Northern Ireland (7%) and Australia (3%).

How has Sia/Addison's workforce changed over the past year?

Minus sign iconPlus sign iconSia/Addison's workforce fell 63% between July 2025 and July 2026. Arts & Design's share of profiles with a known department rose from 25% to 43%.

How many employees does Sia/Addison have currently?

Minus sign iconPlus sign iconSia/Addison has approximately 228 employees as of October 2026. These team members are located across 6 continents, including North America, Europe and Africa.

Who are Sia/Addison's key employees and leadership?

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As of October 2026, Sia/Addison's key employees include:

  • Owner: A. H.
  • Owner: J. K.
  • Owner: M. W.
  • Managing Director, Head Of Strategy: N. M.
  • Svp - Executive Search - It & Digital Marketing: L. W.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

What is Sia/Addison's most common email format?

Minus sign iconPlus sign iconSia/Addison employees' email format typically follows the pattern of FLast@addison.com. Trying to find reliable and up-to-date employee contact data? Find more Sia/Addison email formats with LeadIQ.

What is Sia/Addison known for?

Minus sign iconPlus sign iconSia/Addison was founded in 1962 and operates in the Design Services industry. You can contact Sia/Addison's main corporate office by phone at
+1-212-229-****
. Explore Sia/Addison's company overview page for more information.

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