Support Charity Navigator

{"scroll_effect":"yes","scroll_offset":2,"size":40,"basket_color":"#ffffff","basket_bg_color":"#234ae0","scroll_visibility":"hide","_title":"","_margin":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_margin_tablet":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_margin_mobile":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_padding":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_padding_tablet":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_padding_mobile":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_element_width":"","_element_width_tablet":"","_element_width_mobile":"","_element_custom_width":null,"_element_custom_width_tablet":null,"_element_custom_width_mobile":null,"_grid_column":"","_grid_column_tablet":"","_grid_column_mobile":"","_grid_column_custom":null,"_grid_column_custom_tablet":null,"_grid_column_custom_mobile":null,"_grid_row":"","_grid_row_tablet":"","_grid_row_mobile":"","_grid_row_custom":null,"_grid_row_custom_tablet":null,"_grid_row_custom_mobile":null,"_flex_align_self":"","_flex_align_self_tablet":"","_flex_align_self_mobile":"","_flex_order":"","_flex_order_tablet":"","_flex_order_mobile":"","_flex_order_custom":null,"_flex_order_custom_tablet":null,"_flex_order_custom_mobile":null,"_flex_size":"","_flex_size_tablet":"","_flex_size_mobile":"","_flex_grow":null,"_flex_grow_tablet":null,"_flex_grow_mobile":null,"_flex_shrink":null,"_flex_shrink_tablet":null,"_flex_shrink_mobile":null,"_element_vertical_align":null,"_element_vertical_align_tablet":null,"_element_vertical_align_mobile":null,"_position":"","_offset_orientation_h":null,"_offset_x":null,"_offset_x_tablet":null,"_offset_x_mobile":null,"_offset_x_end":null,"_offset_x_end_tablet":null,"_offset_x_end_mobile":null,"_offset_orientation_v":null,"_offset_y":null,"_offset_y_tablet":null,"_offset_y_mobile":null,"_offset_y_end":null,"_offset_y_end_tablet":null,"_offset_y_end_mobile":null,"_z_index":"","_z_index_tablet":"","_z_index_mobile":"","_element_id":"","_css_classes":"","e_display_conditions":"","_element_cache":"","motion_fx_motion_fx_scrolling":"","motion_fx_translateY_effect":null,"motion_fx_translateY_direction":null,"motion_fx_translateY_speed":null,"motion_fx_translateY_affectedRange":null,"motion_fx_translateX_effect":null,"motion_fx_translateX_direction":null,"motion_fx_translateX_speed":null,"motion_fx_translateX_affectedRange":null,"motion_fx_opacity_effect":null,"motion_fx_opacity_direction":null,"motion_fx_opacity_level":null,"motion_fx_opacity_range":null,"motion_fx_blur_effect":null,"motion_fx_blur_direction":null,"motion_fx_blur_level":null,"motion_fx_blur_range":null,"motion_fx_rotateZ_effect":null,"motion_fx_rotateZ_direction":null,"motion_fx_rotateZ_speed":null,"motion_fx_rotateZ_affectedRange":null,"motion_fx_scale_effect":null,"motion_fx_scale_direction":null,"motion_fx_scale_speed":null,"motion_fx_scale_range":null,"motion_fx_transform_origin_x":null,"motion_fx_transform_origin_y":null,"motion_fx_devices":null,"motion_fx_range":null,"motion_fx_motion_fx_mouse":"","motion_fx_mouseTrack_effect":null,"motion_fx_mouseTrack_direction":null,"motion_fx_mouseTrack_speed":null,"motion_fx_tilt_effect":null,"motion_fx_tilt_direction":null,"motion_fx_tilt_speed":null,"handle_motion_fx_asset_loading":"","sticky":"","sticky_on":null,"sticky_offset":null,"sticky_offset_tablet":null,"sticky_offset_mobile":null,"sticky_effects_offset":null,"sticky_effects_offset_tablet":null,"sticky_effects_offset_mobile":null,"sticky_anchor_link_offset":null,"sticky_anchor_link_offset_tablet":null,"sticky_anchor_link_offset_mobile":null,"sticky_parent":null,"_animation":"","_animation_tablet":"","_animation_mobile":"","animation_duration":null,"_animation_delay":null,"_transform_rotate_popover":"","_transform_rotateZ_effect":null,"_transform_rotateZ_effect_tablet":null,"_transform_rotateZ_effect_mobile":null,"_transform_rotate_3d":null,"_transform_rotateX_effect":null,"_transform_rotateX_effect_tablet":null,"_transform_rotateX_effect_mobile":null,"_transform_rotateY_effect":null,"_transform_rotateY_effect_tablet":null,"_transform_rotateY_effect_mobile":null,"_transform_perspective_effect":null,"_transform_perspective_effect_tablet":null,"_transform_perspective_effect_mobile":null,"_transform_translate_popover":"","_transform_translateX_effect":null,"_transform_translateX_effect_tablet":null,"_transform_translateX_effect_mobile":null,"_transform_translateY_effect":null,"_transform_translateY_effect_tablet":null,"_transform_translateY_effect_mobile":null,"_transform_scale_popover":"","_transform_keep_proportions":"yes","_transform_scale_effect":null,"_transform_scale_effect_tablet":null,"_transform_scale_effect_mobile":null,"_transform_scaleX_effect":null,"_transform_scaleX_effect_tablet":null,"_transform_scaleX_effect_mobile":null,"_transform_scaleY_effect":null,"_transform_scaleY_effect_tablet":null,"_transform_scaleY_effect_mobile":null,"_transform_skew_popover":"","_transform_skewX_effect":null,"_transform_skewX_effect_tablet":null,"_transform_skewX_effect_mobile":null,"_transform_skewY_effect":null,"_transform_skewY_effect_tablet":null,"_transform_skewY_effect_mobile":null,"_transform_flipX_effect":"","_transform_flipY_effect":"","_transform_rotate_popover_hover":"","_transform_rotateZ_effect_hover":null,"_transform_rotateZ_effect_hover_tablet":null,"_transform_rotateZ_effect_hover_mobile":null,"_transform_rotate_3d_hover":null,"_transform_rotateX_effect_hover":null,"_transform_rotateX_effect_hover_tablet":null,"_transform_rotateX_effect_hover_mobile":null,"_transform_rotateY_effect_hover":null,"_transform_rotateY_effect_hover_tablet":null,"_transform_rotateY_effect_hover_mobile":null,"_transform_perspective_effect_hover":null,"_transform_perspective_effect_hover_tablet":null,"_transform_perspective_effect_hover_mobile":null,"_transform_translate_popover_hover":"","_transform_translateX_effect_hover":null,"_transform_translateX_effect_hover_tablet":null,"_transform_translateX_effect_hover_mobile":null,"_transform_translateY_effect_hover":null,"_transform_translateY_effect_hover_tablet":null,"_transform_translateY_effect_hover_mobile":null,"_transform_scale_popover_hover":"","_transform_keep_proportions_hover":"yes","_transform_scale_effect_hover":null,"_transform_scale_effect_hover_tablet":null,"_transform_scale_effect_hover_mobile":null,"_transform_scaleX_effect_hover":null,"_transform_scaleX_effect_hover_tablet":null,"_transform_scaleX_effect_hover_mobile":null,"_transform_scaleY_effect_hover":null,"_transform_scaleY_effect_hover_tablet":null,"_transform_scaleY_effect_hover_mobile":null,"_transform_skew_popover_hover":"","_transform_skewX_effect_hover":null,"_transform_skewX_effect_hover_tablet":null,"_transform_skewX_effect_hover_mobile":null,"_transform_skewY_effect_hover":null,"_transform_skewY_effect_hover_tablet":null,"_transform_skewY_effect_hover_mobile":null,"_transform_flipX_effect_hover":"","_transform_flipY_effect_hover":"","_transform_transition_hover":{"unit":"px","size":"","sizes":[]},"motion_fx_transform_x_anchor_point":null,"motion_fx_transform_x_anchor_point_tablet":null,"motion_fx_transform_x_anchor_point_mobile":null,"motion_fx_transform_y_anchor_point":null,"motion_fx_transform_y_anchor_point_tablet":null,"motion_fx_transform_y_anchor_point_mobile":null,"_background_background":"","_background_color":null,"_background_color_stop":null,"_background_color_stop_tablet":null,"_background_color_stop_mobile":null,"_background_color_b":null,"_background_color_b_stop":null,"_background_color_b_stop_tablet":null,"_background_color_b_stop_mobile":null,"_background_gradient_type":null,"_background_gradient_angle":null,"_background_gradient_angle_tablet":null,"_background_gradient_angle_mobile":null,"_background_gradient_position":null,"_background_gradient_position_tablet":null,"_background_gradient_position_mobile":null,"_background_image":null,"_background_image_tablet":null,"_background_image_mobile":null,"_background_position":null,"_background_position_tablet":null,"_background_position_mobile":null,"_background_xpos":null,"_background_xpos_tablet":null,"_background_xpos_mobile":null,"_background_ypos":null,"_background_ypos_tablet":null,"_background_ypos_mobile":null,"_background_attachment":null,"_background_repeat":null,"_background_repeat_tablet":null,"_background_repeat_mobile":null,"_background_size":null,"_background_size_tablet":null,"_background_size_mobile":null,"_background_bg_width":null,"_background_bg_width_tablet":null,"_background_bg_width_mobile":null,"_background_video_link":null,"_background_video_start":null,"_background_video_end":null,"_background_play_once":null,"_background_play_on_mobile":null,"_background_privacy_mode":null,"_background_video_fallback":null,"_background_slideshow_gallery":null,"_background_slideshow_loop":null,"_background_slideshow_slide_duration":null,"_background_slideshow_slide_transition":null,"_background_slideshow_transition_duration":null,"_background_slideshow_background_size":null,"_background_slideshow_background_size_tablet":null,"_background_slideshow_background_size_mobile":null,"_background_slideshow_background_position":null,"_background_slideshow_background_position_tablet":null,"_background_slideshow_background_position_mobile":null,"_background_slideshow_lazyload":null,"_background_slideshow_ken_burns":null,"_background_slideshow_ken_burns_zoom_direction":null,"_background_hover_background":"","_background_hover_color":null,"_background_hover_color_stop":null,"_background_hover_color_stop_tablet":null,"_background_hover_color_stop_mobile":null,"_background_hover_color_b":null,"_background_hover_color_b_stop":null,"_background_hover_color_b_stop_tablet":null,"_background_hover_color_b_stop_mobile":null,"_background_hover_gradient_type":null,"_background_hover_gradient_angle":null,"_background_hover_gradient_angle_tablet":null,"_background_hover_gradient_angle_mobile":null,"_background_hover_gradient_position":null,"_background_hover_gradient_position_tablet":null,"_background_hover_gradient_position_mobile":null,"_background_hover_image":null,"_background_hover_image_tablet":null,"_background_hover_image_mobile":null,"_background_hover_position":null,"_background_hover_position_tablet":null,"_background_hover_position_mobile":null,"_background_hover_xpos":null,"_background_hover_xpos_tablet":null,"_background_hover_xpos_mobile":null,"_background_hover_ypos":null,"_background_hover_ypos_tablet":null,"_background_hover_ypos_mobile":null,"_background_hover_attachment":null,"_background_hover_repeat":null,"_background_hover_repeat_tablet":null,"_background_hover_repeat_mobile":null,"_background_hover_size":null,"_background_hover_size_tablet":null,"_background_hover_size_mobile":null,"_background_hover_bg_width":null,"_background_hover_bg_width_tablet":null,"_background_hover_bg_width_mobile":null,"_background_hover_video_link":null,"_background_hover_video_start":null,"_background_hover_video_end":null,"_background_hover_play_once":null,"_background_hover_play_on_mobile":null,"_background_hover_privacy_mode":null,"_background_hover_video_fallback":null,"_background_hover_slideshow_gallery":null,"_background_hover_slideshow_loop":null,"_background_hover_slideshow_slide_duration":null,"_background_hover_slideshow_slide_transition":null,"_background_hover_slideshow_transition_duration":null,"_background_hover_slideshow_background_size":null,"_background_hover_slideshow_background_size_tablet":null,"_background_hover_slideshow_background_size_mobile":null,"_background_hover_slideshow_background_position":null,"_background_hover_slideshow_background_position_tablet":null,"_background_hover_slideshow_background_position_mobile":null,"_background_hover_slideshow_lazyload":null,"_background_hover_slideshow_ken_burns":null,"_background_hover_slideshow_ken_burns_zoom_direction":null,"_background_hover_transition":{"unit":"px","size":"","sizes":[]},"_border_border":"","_border_width":null,"_border_width_tablet":null,"_border_width_mobile":null,"_border_color":null,"_border_radius":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_border_radius_tablet":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_border_radius_mobile":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_box_shadow_box_shadow_type":"","_box_shadow_box_shadow":null,"_box_shadow_box_shadow_position":null,"_border_hover_border":"","_border_hover_width":null,"_border_hover_width_tablet":null,"_border_hover_width_mobile":null,"_border_hover_color":null,"_border_radius_hover":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_border_radius_hover_tablet":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_border_radius_hover_mobile":{"unit":"px","top":"","right":"","bottom":"","left":"","isLinked":true},"_box_shadow_hover_box_shadow_type":"","_box_shadow_hover_box_shadow":null,"_box_shadow_hover_box_shadow_position":null,"_border_hover_transition":{"unit":"px","size":"","sizes":[]},"_mask_switch":"","_mask_shape":null,"_mask_image":null,"_mask_image_tablet":null,"_mask_image_mobile":null,"_mask_size":null,"_mask_size_tablet":null,"_mask_size_mobile":null,"_mask_size_scale":null,"_mask_size_scale_tablet":null,"_mask_size_scale_mobile":null,"_mask_position":null,"_mask_position_tablet":null,"_mask_position_mobile":null,"_mask_position_x":null,"_mask_position_x_tablet":null,"_mask_position_x_mobile":null,"_mask_position_y":null,"_mask_position_y_tablet":null,"_mask_position_y_mobile":null,"_mask_repeat":null,"_mask_repeat_tablet":null,"_mask_repeat_mobile":null,"hide_desktop":"","hide_tablet":"","hide_mobile":"","_attributes":"","custom_css":""}

Oceanographic Teaching Stations Inc.

Mission

The specific and primary purposes are to foster and promote the public study of, and interest in, the oceans, tidelands and beaches of Southern California, the marine life therein, and the impact of human population on that environment. OTS and the Roundhouse have been fulfilling this mission since 1979, in the heart of Downtown Manhattan Beach, at the very end of the Manhattan Beach Pier.

MANHATTAN BCH CA | EIN: 95-3409019

Is this your nonprofit?

501(c)(3) organization

PO BOX 1,
MANHATTAN BCH CA 90267-0001

https://www.roundhouseaquarium.org

310-592-6010

Oceanographic Teaching Stations Inc.

Mission

MANHATTAN BCH CA | EIN: 95-3409019

Is this your nonprofit?

501(c)(3) organization

PO BOX 1,
MANHATTAN BCH CA 90267-0001

https://www.roundhouseaquarium.org

310-592-6010

Beacon Report

Great
Good
Needs Improvement
Poor
Incomplete
Additional Information

Website Reported on Tax Form:Yes

SCORE100%

Disclosing the charity’s website promotes transparency and provides access to the public.

Source: Public data from IRS Form 990. Fiscal Year 2025.

No Material Diversion of Assets:Yes

SCORE100%

Financial Statements:No

SCORE0%

Records Retention Policy:Yes

SCORE100%

Tax Form Disclosed on Website:Yes

SCORE100%

Accountability Panel
Score	Metric
100%	Website Reported on Tax Form:Yes Disclosing the charity’s website promotes transparency and provides access to the public. Source: Public data from IRS Form 990. Fiscal Year 2025.
100%	No Material Diversion of Assets:Yes
0%	Financial Statements:No
100%	Records Retention Policy:Yes
100%	Tax Form Disclosed on Website:Yes

Science behind the numbers

Nonprofit Resources

Nonprofit Resources

Oceanographic Teaching Stations Inc.

Mission

Oceanographic Teaching Stations Inc.

Mission

Beacon Report