What departments does Trefethen Family Vineyards have?

Trefethen Family Vineyards has employees across 6 departments including Accounting, Sales, Manufacturing, Education, Environmental Services.

What is the largest department at Trefethen Family Vineyards?

The largest department at Trefethen Family Vineyards is Accounting with 2 employees.

Where are Trefethen Family Vineyards employees located globally?

Trefethen Family Vineyards has employees across 2 continents and 2 countries including United States Of America, New Zealand.

How has Trefethen Family Vineyards's team size changed over time?

Trefethen Family Vineyards's team has decreased from approximately 33 to 30 employees based on available data.

Trefethen Family Vineyards Employee Directory

Beverage ManufacturingCalifornia, United States51-200 Employees

Trefethen Family Vineyards is a family-owned winery based in Napa Valley, California, that produces estate-grown wines. The operation emphasizes sustainable farming and thoughtful winemaking, with hospitality integrated as part of its approach. As one of the region's pioneering producers, it aims to express the character of its land, vines, and people through its wines.

Its activities include consumer sales and hospitality, supported by leadership roles focused on consumer engagement and regional distribution. A recent leadership development—Hailey Trefethen being named president in March 2026—illustrates ongoing governance within the family.

Trefethen Family Vineyards Global Highlights

North America
75

United States Of America
75

Oceania
1

New Zealand
1

Trefethen Family Vineyards's Leadership

D. K.
Accounting Manager
Mobile Phone
Email
E. L.
Regional Sales Manager, Northern Cal And Northern Nevada
Mobile Phone
Email
N. M.
Northeast Sales Manager
Mobile Phone
Email
B. K.
Assistant Winemaker
Mobile Phone
Email
D. B.
Assistant Winemaker
Mobile Phone
Email
J. A.
Accounting Specialist
Mobile Phone
Email
K. N.
Wine Club Concierge
Mobile Phone
Email
N. M.
Wine Educator/Concierge
Mobile Phone
Email

Trefethen Family Vineyards Employee Metrics

100%

50%

0%

2026

2025

Administrative
Business
Education
Arts & Design
Human Resources
Other
Retail

Contact profiles from Trefethen Family Vineyards

Name

Title

Contact

Location

Last Update

D. K.
Accounting Manager
Mobile Phone
Email
Bay
Aug 05, 2026
E. L.
Regional Sales Manager, Northern Cal And Northern Nevada
Mobile Phone
Email
Oct 17, 2024
N. M.
Northeast Sales Manager
Mobile Phone
Email
Oct 17, 2024
B. K.
Assistant Winemaker
Mobile Phone
Email
Oct 22, 2024
D. B.
Assistant Winemaker
Mobile Phone
Email
Oct 17, 2024
J. A.
Accounting Specialist
Mobile Phone
Email
Oct 22, 2024
K. N.
Wine Club Concierge
Mobile Phone
Email
Oct 22, 2024
N. M.
Wine Educator/Concierge
Mobile Phone
Email
Oct 24, 2024
P. P.
Environmental Department
Mobile Phone
Email
Jul 09, 2024
S. H.
Executive Assistant To Janet And John Trefethen
Mobile Phone
Email
Aug 07, 2023

Frequently Asked Questions

What is Trefethen Family Vineyards known for?

Trefethen Family Vineyards was founded in 1968 and operates in the Beverage Manufacturing industry. You can contact Trefethen Family Vineyards's main corporate office by phone at

+1-707-255-****

. Explore Trefethen Family Vineyards's company overview page for more information.

What is Trefethen Family Vineyards's most common email format?

Trefethen Family Vineyards employees' email format typically follows the pattern of First@trefethen.com. Trying to find reliable and up-to-date employee contact data? Find more Trefethen Family Vineyards email formats with LeadIQ.

How many employees does Trefethen Family Vineyards have currently?

Trefethen Family Vineyards has approximately 55 employees as of August 2026. These team members are located across 2 continents, including North America and Oceania.

Who are Trefethen Family Vineyards's key employees and leadership?

As of August 2026, Trefethen Family Vineyards's key employees include:

Accounting Manager: D. K.
Regional Sales Manager, Northern Cal And Northern Nevada: E. L.
Northeast Sales Manager: N. M.
Assistant Winemaker: B. K.
Assistant Winemaker: D. B.

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Trefethen Family Vineyards Employee Directory

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