April 2020 • Cornerstone Earth Group Donates N95 Face Masks to Santa Cruz Healthcare Workers in Santa Cruz

Several hundred N95 face masks were donated to healthcare workers at Dominican Hospital located on 1555 Soquel Drive in Santa Cruz, California.

March 2020 • Silicon Valley Business Journal’s 2019 Top Engineering Firms

Cornerstone Earth Group was ranked again as one of the top engineering firms in Silicon Valley by the Silicon Valley Business Journal.

February 2020 • Cornerstone Earth Group Attends Career Fairs at Cal Poly San Luis Obispo, UC Davis and San Jose State University

Cornerstone Earth Group staff attended the career fairs this spring to greet and meet students with an opportunity for them to learn more about Cornerstone’s business and work culture.

February 2020 • Cornerstone Earth Group Attends 2020 Centennial Community Leadership Breakfast Benefitting the Silicon Valley Monterey Bay Council, Boy Scouts of America

Cornerstone Earth Group participated as table host for the Centennial Community Leadership Breakfast featuring keynote speaker AT&T CEO Randall Stephenson, who spoke about world-leadership in technology and investing in our future. Over 400 guests attended (100 more than the previous year) at the Santa Clara Convention Center in Santa Clara and over $170,000 was raised (more than doubled from last year). Each $300 donation supports one Scout for one year in the program that provides fun, adventure, learning, challenge, and responsibility to help them become the best version of themselves.

November 2019 • Cornerstone Earth Group Celebrate Their Annual Party at the Hotel Valencia Santana Row, San Jose

Cornerstone Earth Group’s employees and their significant others (over 120 attendees) celebrated the annual party at the Hotel Valencia, the only hotel in Santana Row, which features upscale dining and shopping. Hotel Valencia features interiors with Spanish-style architecture. The evening started with mingling, drinks and hors d’oeuvres, followed by buffet dinner and festivities included fortune-telling, a photo booth, casino night in the covered patio area. The night was concluded with a nightcap at the swanky Vbar.

October 2019 • Cornerstone Earth Group Teams Up for Catholic Charities of Santa Clara County’s 11th Annual “Roll Against Poverty” at Campo di Bocce in Los Gatos, CA

Cornerstone Earth Group sponsored and participated in this popular and fun event where 100% of the proceeds goes towards helping alleviate, reduce, and prevent poverty in Santa Clara County. Our team “The Soil Whisperers” moved into the winner’s bracket but could not secure the ultimate win. We will try again next year.

September 2019 • Cornerstone Earth Group Attends the San Jose State University, Career Fair in San Jose, CA

Cornerstone Earth Group staff attended the Career Fair in San Jose in search of qualified candidates interested in being a part of the Cornerstone Team. We met many potential interns and employee candidates.

August 2019 • Cornerstone Earth Group Supports the 2nd Annual Charity Golf Classic in Support of California Children’s Services (CCS) Therapy Foundation

Cornerstone Earth Group participated at the 2nd Annual Golf Classic in support of CCS Therapy Foundation. CCS Therapy Foundation is a non-profit organization focused on ensuring the patients and staff of CCS have the equipment and training needed to maximize the development of each child in therapy.

July 2019 • Robert Fontanilla, CPSM Promoted to Principal, Business Development and Marketing

Congratulations to Robert Fontanilla from our Sunnyvale office on his promotion to Principal, Business Development and Marketing. Robert has over 20 years’ experience in business development and marketing for environmental, geotechnical engineering, and civil engineering firms. His prior experience included overseeing and supervising construction projects and engineering technicians, performing field and laboratory materials testing of soils, concrete and asphalt, and special inspections for reinforced/prestressed/post-tension concrete, masonry, fireproofing, wood nailing and built-up roofing.

July 2019 • Cornerstone Earth Group Sponsors and Attends the Annual AIA Santa Clara Valley Golf Tournament, San Jose

Cornerstone Earth Group was an Awards Sponsor and participated as a foursome at the Annual AIA Santa Clara Valley Golf Tournament at the pristine Almaden Golf and Country Club in Almaden Valley, San Jose. This annual event brings architects and design professionals together for a fun, relaxed, and great way to meet others in the industry.

May 2019 • Cornerstone Earth Group Participates in the Milpitas High School Athletic Boosters Golf Tournament, Milpitas

Cornerstone Earth Group was a guest of Hohbach-Lewin Structural Engineer’s team at this golf tournament; proceeds help support Milpitas High School Athletic Programs. Cornerstone serves as the Geotechnical Engineer-of-Record for Milpitas Unified School District’s many K-12 new and modernization projects.

May 2019 • Cornerstone Earth Group Sponsors Annual SPUR Summer Parties in Oakland, San Francisco and San Jose

Cornerstone Earth Group sponsored the SPUR summer parties held in Oakland on May 16, in San Jose on June 12, and in San Francisco on June 20, where attendees were able to network and enjoy cocktails, food and music. SPUR, the San Francisco Bay Area Planning and Urban Research Association, is a member-supported nonprofit organization that brings people together from across all political spectrums to develop solutions to the big problems our cities face.

April 2019 • Cornerstone Earth Group Sponsors BISNOW’s Event – Evolution of Office Campus Developments – Silicon Valley 2019

Cornerstone Earth Group was a BISNOW sponsor where panelists discussed evolving trends in workspace strategy, ground-up development and investment, and the future of corporate campus planning.

March 2019 • Cornerstone Earth Group Attends the 29th Annual West Coast International Conference on Soil, Water, Energy, and Air in San Diego, CA

This conference began in 1990 supported by just a few interested parties and focused mostly on petroleum-contaminated soils, and it has since evolved to encompass a broad range of important contaminants in many types of media. For the past twenty-eight years, this annual conference has helped to bring the environmental science community closer together by providing a forum to facilitate the exchange of information of technological advances, new scientific achievements, and the effectiveness of standing environmental regulation programs.

February 2019 • Silicon Valley Business Journal’s 2018 Top Engineering Firms

Cornerstone Earth Group was ranked as one of the top engineering firms in Silicon Valley by the Silicon Valley Business Journal.

February 2019 • Cornerstone Earth Group Attends the University of California, Davis, Career Fair in Davis, CA

Cornerstone Earth Group staff attended the Career Fair in Sacramento in search of qualified candidates interested in being a part of the Cornerstone Team. We met several well qualified potential interns and employee candidates.

January 2019 • Cornerstone Earth Group Presents at the CalPoly Company Day in San Luis Obispo, CA

Cornerstone Earth Group staff attended Company Day at CalPoly in San Luis Obispo and gave a presentation to students about Cornerstone, our core services, and some of our interesting and innovative projects.

January 2019 • Cornerstone Earth Group Attends the Annual Cal Poly Career Fair in San Luis Obispo, CA

Cornerstone Earth Group staff attended the career fair in search of finding our next generation of engineers and geologist. Nearly half of our environmental and geotechnical team employees are Cal Poly graduates.

December 2018 • Cornerstone Earth Group’s Annual Party at the Monterey Bay Aquarium

Cornerstone Earth Group’s employees and their guests (over 120 attendees) returned for the second time to the Monterey Bay Aquarium where there was an opportunity to walk through the exhibits including petting of the stingrays, great food and drinks, and a magician. In addition, one of our employees won two free airline tickets to Maui for guessing the closest number of animals and plants at the aquarium.

August 2018 • Sheamus Mullen Promoted to Principal, Construction Services

Congratulations to Sheamus Mullen from our Sunnyvale office on his promotion to Principal, Construction Services Group. Sheamus has over 15 years’ experience of field and laboratory materials testing of soils and asphalt concrete and oversees and supervises construction projects and engineering technicians. We see Sheamus as a leader who looks to inspire leadership in others.

June 2018 • Cornerstone Earth Group's Holiday Party at The Silicon Valley Capital Club

Cornerstone Earth Group's employees and their guests (over 100 attendees) celebrated another successful year at the Silicon Valley Capital Club where there were amazing views of Santa Clara Valley, great food and drinks, an ice sculpture drink luge, a caricaturist, dancing, and the highlight of the evening - a karaoke contest. The winning singer won a weekend for two in Las Vegas where they attended a NHL game.

June 2018 • Our Walnut Creek Office is Moving into a New Larger Location

Due to Cornerstone Earth Group's growth in the East Bay, the Walnut Creek office has moved into a newer, larger and more modern space at 1220 Oakland Boulevard, Suite 220, in Walnut Creek.

June 2018 • Cornerstone Earth Group Participates in the First Annual Charity Golf Tournament for California Children's Services in San Jose

Cornerstone Earth Group participated at the First Annual Charity Golf Tournament for California Children's Services (CCS) at Cinnabar Golf Course in San Jose, CA. CCS is a state program for children up to 21 years old with certain diseases and health problems that provides health care and services including occupational and physical therapy. The golf tournament is a way to raise much-needed money for this organization that is constantly underfunded by the State of California.

June 2018 • Cornerstone Earth Group Sponsors AIA Santa Clara Valley 31st Annual Golf Tournament

Cornerstone Earth Group participated as a tee sponsor at this annual golf tournament at the Coyote Creek Golf Club in Morgan Hill, CA. Our team finished in a four-way tie for first place but lost in the tie-breaker.

May 2018 • Cornerstone Earth Group Attends the SacPEMA May General Meeting on Cal/EPA Unified Approach to Evaluating and Managing Vapor Intrusion Risk

Dr. Claudio Sorrentino discussed the development of a 4-step process to protect current occupants of buildings near known or suspected releases of vapor forming chemicals (VFC's). The purpose of this 4-step process is to provide state-wide consistency in risk management protocols and to streamline the recommended approach in State guidance.

April 2018 • Cornerstone Earth Group Sponsors San Francisco Bisnow Event

Cornerstone Earth Group was a sponsor at this event; speakers discussed multi-family and mixed-used development and investment trends in Almeda County.

March 2018 • Cornerstone Earth Group's Annual Ski Fest at Bear Valley

Cornerstone Earth Group's employees kicked off the ski season with a fantastic weekend of skiing and snow-filled fun at Bear Valley, topped off with a celebration dinner.

March 2018 • Cornerstone Earth Group Attends the 28th Annual West Coast International Conference on Soil, Water, Energy, and Air in San Diego, CA

Cornerstone Earth Group attended the 28th annual gathering of environmental professionals to the Conference on Soil, Water, Energy, and Air. For the past twenty-seven years, this annual conference has helped to bring the environmental science community closer together by providing a forum to facilitate the exchange of information of technological advances, new scientific achievements, and the effectiveness of standing environmental regulation programs.

March 2018 • Cornerstone Earth Group Sponsors SPUR Event in San Jose

Cornerstone Earth Group was a sponsor at this event; panelists Ken Lowney of Lowney Architecture and Geoff Morgan of First Community Housing discussed Modular Construction, which has been gaining interest among builders, developers and architects in the Bay Area.

February 2018 • Silicon Valley Business Journal's 2018 Top Engineering Firms

Cornerstone Earth Group was ranked as one of the top engineering firms in Silicon Valley by the Silicon Valley Business Journal.

February 2018 • Cornerstone Earth Group Sponsors BISNOW's Event - Oakland's Annual State of the Market Summit

Cornerstone Earth Group was a sponsor BISNOW where panelists discussed the future of property values and development in the East Bay.

October 2017 • Cornerstone Earth Group Makes Playoffs at the AIA Santa Clara Valley Softball League

Cornerstone Earth Group's softball team, The Soil Whispers, advanced to the first round of the softball playoffs and battled it out with the number one seed team, AP+I/Barron. Unfortunately, AP+I/Barron won and eventually became tournament champion.

July 2017 • Forrest Leblo Promoted to Principal of Laboratory Services

Congratulations to Forrest Leblo from our Sunnyvale office on his promotion to Principal, Laboratory Services. Forrest has over 19 years' experience of field and laboratory materials testing of soils, concrete and asphalt concrete, and oversees and performs soil laboratory testing for various construction projects.

May 2017 • Cornerstone Earth Group Takes 1st Place in Bike to Work Week

Cornerstone Earth Group took 1st Place in the Extra Small Company Category in the Santa Clara County Company Bike Challenge as part of the Team Bike Challenge.

March 2017 • Cornerstone Earth Group Celebrates Its 10-Year Anniversary

Cornerstone Earth Group reached its 10-year anniversary as a leading provider of geotechnical engineering and environmental consulting services. Cornerstone celebrates a decade of client-focused and value-added services. Over the past 10 years, Cornerstone Earth Group has built a reputation as an industry leader in geotechnical and environmental consulting services in the greater San Francisco Bay area. The company has grown to a staff of approximately 60 employees and has completed over 5000 projects. As further evidence of their growth, Cornerstone consistently has been ranked as one of the top engineering and environmental firms in Silicon Valley.

March 2017 • City of San José Awards Three-Year Master Services Agreement for Environmental Services

The City of San José Environmental Services Department awarded Cornerstone Earth Group another three-year Master Services Agreement to provide Environmental Assessments, Investigation, and Remediation Services. Cornerstone was ranked highest of 25 firms who submitted qualifications and was ranked highest after the City of San José conducted interviews with the top six firms.

March 2017 • Cornerstone Earth Group's Annual Ski-Fest

Over 20 guests attended this year's Ski-Fest at Bear Valley. Deep snow and amazing weather made for another fun trip. The “kicked-up” celebration dinner was the ultimate ending to a fun filled weekend.

February 2017 • Silicon Valley Business Journal's 2017 Top Engineering Firms

Cornerstone Earth Group was ranked as one of the top engineering firms in Silicon Valley by the Silicon Valley Business Journal.

June 2016 • Habitat for Humanity East Bay/Silicon Valley

In May and June 2016, Cornerstone Earth Group provided pro bono services to Habitat for Humanity East Bay/Silicon Valley for their acquisition of an approximately 2-acre property in Walnut Creek. A multi-family residential development is planned on this property that was historically occupied by a private swim club and is bordered by two former railroad right-of- ways.

June 2016 • Erin Steiner, P.E., G.E., and Chris Heiny, P.G., Promoted to Principals

Congratulations to Erin Steiner, P.E., G.E. from our Sunnyvale office and Chris Heiny, P.G. from our Walnut Creek office on their recent promotion to Principal at Cornerstone Earth Group. Erin has over 14 years of local experience in geotechnical engineering and Chris has over 10 years of local experience in environmental consulting. We are fortunate to have them lead our next generation of staff.

January 2016 • Silicon Valley Business Journal's 2016 Top Engineering Firms

Cornerstone Earth Group was ranked 11th as one of the top engineering firms in Silicon Valley according to the Silicon Valley Business Journal.

September 2015 • Silicon Valley Business Journal's 2015 Top Environmental Firms

Cornerstone Earth Group was ranked 5th as one of the top environmental firms in Silicon Valley according to the Silicon Valley Business Journal.

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