Insights

Platform Investment Sienna focuses on platform investments and multi-year programs, signaling a need for scalable deal-sourcing, portfolio management, and fundraising support to grow such platforms.

Restructuring Opportunity Advising on recapitalizations and restructurings points to opportunities around debt refinancing, capital-structure optimization, and asset-turnaround services for real estate portfolios.

GP Collaboration GP investing alongside clients suggests openness to co-investment and strategic partnerships; potential to offer governance, deal diligence, and portfolio analytics to support joint investment programs.

Lean Team Signal Very small team size implies reliance on external partners; this creates a buying signal for outsourced research, white-label advisory, and scalable tech-enabled workflows.

AI Sourcing Fit Investment in AI-powered sourcing (Globality) shows appetite for digital, data-driven advisory; opportunities exist to propose AI-driven market intelligence, vendor management, and integrated sourcing tools for faster execution.

Similar companies to Sienna Capital Partners

Sienna Capital Partners Tech Stack

Sienna Capital Partners uses 8 technology products and services including Cloudflare CDN, RSS, Font Awesome, and more. Explore Sienna Capital Partners's tech stack below.

Cloudflare CDN
Content Delivery Network
RSS
Content Management System
Font Awesome
Font Scripts
TweenMax
Javascript Frameworks
Kinsta
Platform As A Service
Cloudflare Bot Management
Security
X-Content-Type-Options
Web & Portal Technology
HTTP/3
Web & Portal Technology

Media & News

Siennacapital invested into Globality, Inc. $138M on Jan 19th '21.
MENLO PARK, Calif.--( BUSINESS WIRE )--Globality, the leading AI-powered digital solution for sourcing strategic services, announced today it has closed an investment of $138.3 million from Sienna Capital, a wholly owned subsidiary of Groupe Bruxelles Lambert (GBL), and the SoftBank Vision Fund.
Jan 17, 2021 | www.businesswire.com

Sienna Capital Partners's Email Address Formats

Sienna Capital Partners uses at least 1 format(s):

Sienna Capital Partners Email Formats	Example	Percentage
FirstLast@siennacapital.com	JohnDoe@siennacapital.com	100%

Frequently Asked Questions

Where is Sienna Capital Partners's headquarters located?

Sienna Capital Partners's main headquarters is located at 135 East 57th Street 23rd Floor New York, New York 10022 United States. The company has employees across 1 continents, including North America.

What is Sienna Capital Partners's phone number?

You can contact Sienna Capital Partners's main corporate office by phone at

+1-646-610-****

. 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 Sienna Capital Partners's official website and social media links?

Sienna Capital Partners's official website is siennacapital.com and has social profiles on LinkedIn.

What is Sienna Capital Partners's NAICS code?

Sienna Capital Partners's NAICS code is 531 - Real Estate.

How many employees does Sienna Capital Partners have currently?

As of June 2026, Sienna Capital Partners has approximately 1 employees across 1 continents, including North America. Key team members include Principal: A. O.Principal: P. B.. Explore Sienna Capital Partners's employee directory with LeadIQ.

What industry does Sienna Capital Partners belong to?

Sienna Capital Partners operates in the Real Estate industry.

What technology does Sienna Capital Partners use?

Sienna Capital Partners's tech stack includes Cloudflare CDNRSSFont AwesomeTweenMaxKinstaCloudflare Bot ManagementX-Content-Type-OptionsHTTP/3.

What is Sienna Capital Partners's email format?

Sienna Capital Partners's email format typically follows the pattern of FirstLast@siennacapital.com. Find more Sienna Capital Partners email formats with LeadIQ.

When was Sienna Capital Partners founded?

Sienna Capital Partners was founded in 2011.

Sienna Capital Partners

Q: How many employees does Sienna Capital Partners have currently?

Sienna Capital Partners has approximately 1 employees.

Q: What is Sienna Capital Partners's NAICS code?

Sienna Capital Partners's NAICS code is 531 (Real Estate).

Real EstateNew York, United States0-1 Employees

Sienna Capital Partners is a New York City-based real estate advisory firm located at 135 East 57th Street, 23rd Floor, New York, NY 10022. It provides strategic advisory services to real estate operators, developers, and investment managers. The firm advises on strategic alternatives for complex business challenges in recapitalizations, restructurings, and entity-level transactions, with a focus on platform investments and multi-year investment programs. It draws on real estate expertise across a broad range of alternative real estate sectors and can invest as a general partner alongside select clients when its ongoing advisory role supports the investment strategy. The company maintains a very small team (0-1 employees) and has participated in investment activity, including a 2021 transaction involving Globality, Inc., with additional details available on its website.

Company Overview

Headquarters: 135 East 57th Street 23rd Floor New York, New York 10022 United States
Phone number: +1-646-610-****
Website: siennacapital.com
NAICS Code: 531 - Real Estate
Founded: 2011
Employees: 0-1