Our Mission

Allana Buick & Bers (ABB) assists building owners, architects, contractors, and the construction industry with making buildings perform better. ABB has a holistic approach to building performance by improving building longevity, mitigating risk of defects, and lowering operational expenses with sound building sciences. Our world-class professional staff specializes in building envelope systems, roofing, waterproofing, building forensics, mechanical systems, and testing.

Allana Buick & Bers’ core values are:

We work in accordance with:


Executive Leadership

Karim P. Allana

Karim Allana, PE, RWC, RRC
Chief Executive Officer, Senior Principal

Eugene Buick

Eugene Buick, PE
Chief Operations Officer, Senior Principal

Gerson Bers

Gerson Bers, LEED AP
Vice President, Senior Principal


Barbara Wong

Barbara Wong
Human Resources Director

James Engler

Bill Conley
Dallas Division Manager, Senior Principal

Danny Westerfield Jr., RRO
Senior Consultant & Associate Principal

James Engler

James Engler, CSI, AIA, SCIP, BESI
Hawaii Building Envelope Manager, Principal

Jerome Jeffers

Jerome Jeffers II, RRC, RWC, RBEC, CCS, CCCA
Design Services Manager, Principal

John Kelleher

John Kelleher
Chief Financial Officer, Principal

John Williams

John Williams
North Carolina Division Manager, Principal

Jonathan Bell 
Business Development Officer & Associate Principal

Joe Higgins

Joseph Higgins, PE
Hawaii Operations Manager, Principal

James Engler

Kelly Conley
Business Development Director, Associate Principal

James Engler

Dallas Operations Manager, Senior Principal

Khatidja Khalfan

Khatidja Khalfan, CPSM
Marketing Director

James Engler

Matt Dutrow
Senior Consultant, Associate Principal

James Engler

Michael Johns
Senior Consultant, Associate Principal

James Engler

Mike Quinn
Design Manager, Associate Principal

Peterson Lambert

Petersen Lambert, PE, BECxP, CxA+BE
Seattle Division Manager, Principal

Roberto Hernandez
Forensic Services Manager & Associate Principal

James Engler

Ron Rapacz,  AIA, RA, NCARB
Associate Principal

2020:Zweig Group – Best Firm to Work For (#21) 100 -199 Employees
Zweig Group – Best Firm to Work For (#48) Multidiscipline
Zweig Group – Hot Firms – 2020 (#87)
Hawaii Business Magazine – Hawai’I’s Best Places to Work
2018:ZweigWhite – Best Firm to Work For (#28)
Largest Minority-Owned Businesses  (#10)
Silicon Valley Business Journal Fast Private Award (#45)
2017:Zweig Group Fast Growth Award
ZweigWhite – Best Firm to Work For (#27)
ABBAE Project Malden Station named Multifamily Community of the Year at the 2017 Multifamily Pillars of the Industry Awards by the National Association of Home Builders (NAHB).
2016:Silicon Valley Business Journal – 50 Fastest Growing Private Companies
ZweigWhite – Best Firm to Work For (#25 in Multi-Discipline)
2015:Statewide Educational Wrap-Up Program Joint Powers Authority – Safety Recognition Award
ZweigWhite – Best Firm to Work For
ZweigWhite – Marketing Excellence
2014:Architectural Record Top 300
ENR California – Top Design Firm
Pacific Business News – Hawaii’s Top Engineer Firm
ZweigWhite – Best Firm to Work For
2013:CE News – Best Firm to Work For
ENR Top 500 Design Firm
Pacific Business News- Top Engineering Firm
Silicon Valley Business Journal – Top Minority Owned Business
Silicon Valley Business Journal – Top Engineering Firm
2012:Hawaii Best Places to Work
Inc 5000 – Fastest Growing Firms
2011:Hawaii Best Places to Work
Inc 5000 – Fastest Growing Firms
2010:CE News – Best Firm to Work For
Hawaii Best Places to Work
Hawaii Fastest 50 Firms
Inc 5000 – Fastest Growing Firms
RCI – Document Awards 1st Place
ZweigWhite HotFirm – Fastest Growing
2009:CE News – Best Firm to Work For
Hawaii Best Places to Work
Hawaii Fastest 50 Firms
RCI – Document Awards 3rd Place
ZweigWhite Hot Firm – Fastest Growing
2008:CE News – Best Firm to Work For
Hawaii Best Places to Work
ZweigWhite Hot Firm – Fastest Growing
2017:Allana Buick & Bers opens twelfth office in Portland, Oregon.
2017:Allana Buick & Bers celebrates its 30 year anniversary. ABBAE is awarded “Best Firm to Work For” for the 9th year in a row. ABBAE achieves over 20% growth over the past 3 years.
2016:Allana Buick & Bers opens its eleventh office in Charlotte, North Carolina.
2015:Allana Buick & Bers opens its tenth office in Oakland, CA. The office is located in the heart of up-and-coming downtown Oakland and brings ABBAE closer to East Bay clients and job sites.
2013:Allana Buick & Bers promotes two of its employees to Associate Principal: Petersen Lambert of the Seattle office and Joseph Higgins in the Hawaii office. In addition, Allana Buick & Bers launches a new Construction Management division to complement its existing portfolio of construction services including: Construction Documents, Construction Administration, and Construction Monitoring.
2012:Allana Buick & Bers celebrates its 25th anniversary. A new branch office opens in Irvine, California.
2009:The firm continues to expand past one hundred (100) employees. A new branch office opens in Seattle, Washington. Additionally, the firm launches a new Energy and Solar Division in an effort to provide clients with energy efficiency and renewable/alternative energy consulting services. Jerome Jeffers is also promoted to the position of Associate Principal.
2007:The firm continues to expand past ninety (90) Employees. New office openings include a satellite branch on the Island of Maui, as well as Sacramento, California.
2006:The firm continues to see growth in staff expertise and client base in all offices. The firm moves its headquarters to a newly renovated 20,000 square foot office at 990 Commercial Street in Palo Alto, California. The new headquarters building was renovated specifically to accommodate our range of services. The new headquarters building has a large training facility and dedicated areas for accounting, IT facilities, and corporate marketing. The consulting staff is housed in an open studio with collaborative spaces and large personal work areas.
2005:Several milestones reached, including the firm doubling in size to more than forty employees and changing the name to Allana Buick & Bers, Inc. Our expertise expanded to include structural engineering and large-scale construction management. Additionally, ABBAE opens a third branch office in Los Angeles, California and a fourth branch office in Las Vegas, Nevada.
2003:Hawaii is the second branch office to open, and provides roof design and construction management services for a substantial hotel renovation in Waikiki.
2002:The firm’s expertise greatly expands, with Gerson Bers and Eugene Buick joining the firm as partners. The firm has approximately fourteen full-time employees and adds a new mechanical engineering consulting specialty.
2001:Our first branch office opens in San Diego. The San Diego staff provide consulting services to Southern California ABBAE clients.
1994:The firm changes its name from Roofing Services and Consultants to Allana-Lippert, Inc. in recognition of the comprehensive list of architectural engineering services offered to its clients. Demand for the firm’s expertise grew rapidly during the early “internet bubble”.
1992:Steve Lippert, our first chief architect, joins the firm and adds expertise in building code compliance, steel fabrication, and construction.
1991:The firm moves to a larger facility in San Jose, California to accommodate the rapidly growing staff.
1989:Gerson Bers joins the firm. The firm grew to a staff of six employees and offers expertise in building facility assessments and consultation for multiple building envelope systems.
1987:Allana Buick & Bers’ predecessor firm (Roofing Services and Consultants) was founded in Sunnyvale, California by Karim Allana. The firm provides roofing design services, quality control services, and roofing repair services.


General Building Contractor (GBC): 1002553

Professional Engineer (PE): C 41693

Registered Architect (RA): C 12273


General Building Contractor (GBC): 77289

Professional Engineer (PE): 15686

Registered Architect (RA): 6593


General Building Contractor (GBC): -32103

Professional Engineer (PE):  – 11655

Registered Architect (RA):  – 10853


Professional Engineer (PE): 47311

Registered Architect (RA): 8834

ABB offers seminars and training classes. All of these courses provide AIA Continuing Education Learning Units.