MAZZETTI, INC. Employer Identification Number EIN

Employer Identification Number 94-1722463

MAZZETTI, INC. is a USA domiciled entity or foreign entity operating in the USA. The EIN ihas been issued by the IRS

Company Name: MAZZETTI, INC.

Employer identification number (EIN): 94-1722463

EIN Issuing Authority Memphis, TN
NAIC Classification: 541330
NAIC Description: Engineering Services
401k Pension/Benefits registration MAZZETTI, INC. 401k plan information
State of Incorporation California, CA

Organization Addresses

The following addresses have been detected as associated with Tax Indentification Number 941722463

USA Mailing Address

220 MONTGOMERY STREET, SUITE 650

SAN FRANCISCO

94104

Date first seen: 2007-01-01

Date last seen: 2025-06-30

USA Mailing Address

1600 STOUT STREET, SUITE 450

DENVER

80202

Date first seen: 2007-01-01

Date last seen: 2026-01-05

USA Mailing Address

530 BUSH STREET, SUITE 300

SAN FRANCISCO

94108

Date first seen: 2007-01-01

Date last seen: 2025-09-16

USA Location Address

220 MONTGOMERY STREET

SUITE 650

SAN FRANCISCO

94104

Date first seen: 2007-01-01

Date last seen: 2025-06-30

USA Location Address

530 BUSH STREET, SUITE 300

SAN FRANCISCO

94108

Date first seen: 2007-01-01

Date last seen: 2025-06-30

USA Location Address

220 MONTGOMERY STREET, SUITE 650

SAN FRANCISCO

941043402

Date first seen: 2019-10-10

Date last seen: 2020-07-06

USA Mailing Address

1600 STOUT STREET

SUITE 450

DENVER

80202

Date first seen: 2007-01-01

Date last seen: 2025-11-22

USA Mailing Address

220 MONTGOMERY STREET

SUITE 650

SAN FRANCISCO

94104

Date first seen: 2007-01-01

Date last seen: 2026-01-07

USA Mailing Address

220 MONTGOMERY STREET, SUITE 640

SAN FRANCISCO

94104

Date first seen: 2007-01-01

Date last seen: 2026-01-07

The following addresses have been found in other jurisdictions:

Jurisdiction:

California Department of State

Address:

220 Montgomery Street,Suite 650

San Francisco

94104

Jurisdiction Company ID:

Jurisdiction Registration Date:

Jurisdiction:

Washington Department of State

Address:

C T CORPORATION SYSTEM

711 CAPITOL WAY S STE 204

OLYMPIA

985011474

Jurisdiction Company ID:

601933504

Jurisdiction Registration Date:

2010-08-27

Jurisdiction:

Washington Department of State

Address:

711 CAPITOL WAY S STE 204

OLYMPIA

985011267

Jurisdiction Company ID:

601933504

Jurisdiction Registration Date:

2010-08-27

Jurisdiction:

Colorado Department of State

Address:

7700 E. Arapahoe Rd.

Ste. 220

Centennial

80112

Jurisdiction Company ID:

20091172372

Jurisdiction Registration Date:

2009-03-25

Jurisdiction:

Iowa Secretary of State Business Entities

Address:

220 MONTGOMERY STREET SUITE 650

SAN FRANCISCO

94104

Jurisdiction Company ID:

377537

Jurisdiction Registration Date:

2009-03-26

Jurisdiction:

Florida Department of State Division of Corporations

Address:

C T CORPORATION SYSTEM

1200 SOUTH PINE ISLAND ROAD

PLANTATION

33324

Jurisdiction Company ID:

F00000005445

Jurisdiction Registration Date:

2000-09-28

Jurisdiction:

Virginia State Corporation Commission

Address:

4701 COX ROAD

SUITE 285

GLEN ALLEN

23060

Jurisdiction Company ID:

F143624

Jurisdiction Registration Date:

2002-09-09

Jurisdiction:

Oregon Secretary of State Corporations Division

Address:

220 MONTGOMERY STREET

SUITE 650

SAN FRANCISCO

94104

Jurisdiction Company ID:

28646693

Jurisdiction Registration Date:

2005-05-05

Jurisdiction:

Alabama Secretary of State

Address:

220 MONTGOMERY STREET STE 650 SAN FRANCISCO, CA 94104

Jurisdiction Company ID:

941-555

Jurisdiction Registration Date:

Jurisdiction:

Alabama Secretary of State

Address:

220 MONTGOMERY STREET STE 650 SAN FRANCISCO, CA 94104

Jurisdiction Company ID:

941-555

Jurisdiction Registration Date:

Jurisdiction:

Alabama Secretary of State

Address:

2 NORTH JACKSON STREET STE 605 MONTGOMERY, AL 36104

Jurisdiction Company ID:

941-555

Jurisdiction Registration Date:

Jurisdiction:

Alabama Secretary of State

Address:

2 NORTH JACKSON STREET STE 605 MONTGOMERY, AL 36104

Jurisdiction Company ID:

941-555

Jurisdiction Registration Date:

Jurisdiction:

Vermont Secretary of State Corporations Division

Address:

REGISTERED AGENTS INC.

145 PINE HAVEN SHORES RD #1000A

SHELBURNE

05482

Jurisdiction Company ID:

410527 /

Jurisdiction Registration Date:

2022-06-09

EIN Change Events for MAZZETTI, INC.

WILLIAM TAO & ASSOCIATES, INC. and MAZZETTI, INC. are related companies. Change of plan sponsor in a 401k sponspor detected on 2019-10-14. The plan sponsor was changed from WILLIAM TAO & ASSOCIATES, INC. to MAZZETTI, INC.

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Company Name:	MAZZETTI, INC.
Employer identification number (EIN):	94-1722463
EIN Issuing Authority	Memphis, TN
NAIC Classification:	541330
NAIC Description:	Engineering Services
401k Pension/Benefits registration	MAZZETTI, INC. 401k plan information
State of Incorporation	California, CA